<SEC-DOCUMENT>0001587732-17-000023.txt : 20170502
<SEC-HEADER>0001587732-17-000023.hdr.sgml : 20170502
<ACCEPTANCE-DATETIME>20170502150652
ACCESSION NUMBER:		0001587732-17-000023
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		50
CONFORMED PERIOD OF REPORT:	20170331
FILED AS OF DATE:		20170502
DATE AS OF CHANGE:		20170502

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONE Gas, Inc.
		CENTRAL INDEX KEY:			0001587732
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS DISTRIBUTION [4924]
		IRS NUMBER:				463561936
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36108
		FILM NUMBER:		17804547

	BUSINESS ADDRESS:	
		STREET 1:		15 EAST FIFTH STREET
		CITY:			TULSA
		STATE:			OK
		ZIP:			74103
		BUSINESS PHONE:		918-947-7000

	MAIL ADDRESS:	
		STREET 1:		15 EAST FIFTH STREET
		CITY:			TULSA
		STATE:			OK
		ZIP:			74103
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>onegas10-qx3312017.htm
<DESCRIPTION>OGS 1Q2017 10-Q
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2017 Workiva -->
		<title>Document</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="sDB929192C34CDFA364C7D2B8463EA94A"></a></div><div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:Arial;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">UNITED STATES</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">SECURITIES AND EXCHANGE COMMISSION</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">WASHINGTON, D.C. 20549</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">FORM 10-Q</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">X</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#32;</font><font style="font-family:inherit;font-size:10pt;">Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">For the quarterly period ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">OR</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">___ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">For the transition period from __________ to __________.</font></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Commission file number&#160;&#160;&#160;001-36108</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">ONE Gas, Inc.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Exact name of registrant as specified in its charter)</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:85.546875%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:50%;"></td><td style="width:50%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Oklahoma</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">46-3561936</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(State or other jurisdiction of</font></div><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">incorporation or organization)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(I.R.S. Employer Identification No.)</font></div><div style="font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">15 East Fifth Street, Tulsa, OK</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">74103</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Address of principal executive offices)</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Zip Code)</font></div></td></tr></table></div></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-top:8px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Registrant&#8217;s telephone number, including area code&#160;&#160;&#160;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">(918) 947-7000</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.&#160;&#160;Yes </font><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">X</font><font style="font-family:inherit;font-size:10pt;">&#160;&#160;No __</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (&#167; 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).&#160;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Yes </font><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">X</font><font style="font-family:inherit;font-size:10pt;">&#32;No __</font></div><div style="line-height:120%;text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:39%;"></td><td style="width:61%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Large accelerated filer </font><font style="font-family:inherit;font-size:9pt;text-decoration:underline;">X</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accelerated filer __&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Non-accelerated filer __&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(Do not check if a smaller reporting company)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Smaller reporting company__</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:5px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Emerging growth company__</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.__</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Yes __ No </font><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">X</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On April 25, </font><font style="font-family:inherit;font-size:10pt;">2017</font><font style="font-family:inherit;font-size:10pt;">, the Company had </font><font style="font-family:inherit;font-size:10pt;">52,435,350</font><font style="font-family:inherit;font-size:10pt;">&#32;shares of common stock outstanding.</font></div><div><br></div><div></div><hr style="page-break-after:always"><div><a name="sFCEA5E82DE6BB3B99C18D2B84AFDA4BB"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This page intentionally left blank.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div></div><hr style="page-break-after:always"><div><a name="s701EC6D4F6BD625B6A83D2B84B2EF34F"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ONE Gas, Inc.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#32;TABLE OF CONTENTS</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:13%;"></td><td style="width:78%;"></td><td style="width:9%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;" href="#sFB9795089AC884E43768D2B864EB0BAA"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;">Part I.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;">Financial Information</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Page No.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sEA24FD8D5B51921BC971D2B864ED027F"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 1.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sEA24FD8D5B51921BC971D2B864ED027F"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Financial Statements (Unaudited)</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s8CC8B72261FCC622D311D2B84BD6E161">6</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Statements of Income - Three Months Ended March 31, 2017 and 2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s7C710D559B6CFF89816CD2B8463890BD">6</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Statements of Comprehensive Income - Three Months Ended March 31, 2017 and 2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sC4D531D68DC7B6692AFAD2B8462DB6EE">7</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Balance Sheets - March 31, 2017 and December 31, 2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sF13BA1157459BD4C71BDD2B845D419A7">8</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Statements of Cash Flows - Three Months Ended March 31, 2017 and 2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sACDFFF5669A31A1F0BB9D2B845F87C0A">11</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Statement of Equity - Three Months Ended March 31, 2017</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s524AECD3A4E075C666EAD2B845EACA55">12</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Notes to the Financial Statements</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sBBD3DCDF98847F55D12CD2B8470C9E70">14</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s72BF83227791DCC91F64D2B865018644"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 2.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s72BF83227791DCC91F64D2B865018644"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sB677D427FBC7213126AAD2B84FBD095E">22</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sE6B6B4A359E3E5773BD4D2B86508E624"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 3.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sE6B6B4A359E3E5773BD4D2B86508E624"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Quantitative and Qualitative Disclosures About Market Risk</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sC40C2441087F7F157F5FD2B8515F5279">32</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s12F471D0ACD23321E318D2B8650D0F18"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 4.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s12F471D0ACD23321E318D2B8650D0F18"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Controls and Procedures</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s30A4A89AC86E213DF2D1D2B8518090F3">32</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;" href="#sC6A8E1E575AC858DFC03D2B86513C061"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;">Part II.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;" href="#sC6A8E1E575AC858DFC03D2B86513C061"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;">Other Information</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sBE972F0A9D486DA52E53D2B851B10759">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s3F657C788E663ECA9C27D2B8651A9D04"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 1.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s3F657C788E663ECA9C27D2B8651A9D04"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Legal Proceedings</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s8AA45490CA42EB45B452D2B851D2E741">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s9D2C7F7AB91FE43733ADD2B865202E50"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 1A.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s9D2C7F7AB91FE43733ADD2B865202E50"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Risk Factors</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s67B95C99297F3A45B836D2B852057DCD">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s5C15DE6343DA8EFF245CD2B86526FE7E"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 2.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s5C15DE6343DA8EFF245CD2B86526FE7E"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Unregistered Sales of Equity Securities and Use of Proceeds</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s6FE33AFECCF407306F9BD2B8495B0B70">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sD4F19CBD2AD676E55193D2B8652B85C7"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 3.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#sD4F19CBD2AD676E55193D2B8652B85C7"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Defaults Upon Senior Securities</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s516BA3F86187765F8334D2B85258F8D7">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s6F7CCA4A38D441657223D2B86533B1AB"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 4.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s6F7CCA4A38D441657223D2B86533B1AB"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Mine Safety Disclosures</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s1FF58176CABBE12EEE4CD2B852794E05">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s258037AABA299DA9B855D2B8653BDBFD"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 5.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s258037AABA299DA9B855D2B8653BDBFD"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Other Information</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s9AEBBBBA54FB2FB0452DD2B852ABBF04">33</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s8F1EF7B7345EE8B27E32D2B86542EAD5"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Item 6.</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;" href="#s8F1EF7B7345EE8B27E32D2B86542EAD5"><font style="font-family:inherit;font-size:10pt;color:#0000ff;text-decoration:underline;">Exhibits</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#s191832511C21CAFDF32FD2B852CCF0C7">34</a></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;" href="#s6F374334C90A44FD572FD2B8654948E7"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;text-decoration:underline;">Signature</font></a></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><a style="font-family:inherit;font-size:10pt;font-weight:bold;" href="#sF6952445D2192D4A4326D2B852FFB1C2">35</a></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As used in this Quarterly Report, references to &#8220;we,&#8221; &#8220;our,&#8221; &#8220;us&#8221; or  the &#8220;company&#8221; refer to ONE Gas, Inc., an Oklahoma corporation, and its predecessors and subsidiary, unless the context indicates otherwise.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">The statements in this Quarterly Report that are not historical information, including statements concerning plans and objectives of management for future operations, economic performance or related assumptions, are forward-looking statements.&#160;&#160;Forward-looking statements may include words such as &#8220;anticipate,&#8221; &#8220;estimate,&#8221; &#8220;expect,&#8221; &#8220;project,&#8221; &#8220;intend,&#8221; &#8220;plan,&#8221; &#8220;believe,&#8221; &#8220;should,&#8221; &#8220;goal,&#8221; &#8220;forecast,&#8221; &#8220;guidance,&#8221; &#8220;could,&#8221; &#8220;may,&#8221; &#8220;continue,&#8221; &#8220;might,&#8221; &#8220;potential,&#8221; &#8220;scheduled&#8221; and other words and terms of similar meaning.&#160;&#160;Although we believe that our expectations regarding future events are based on reasonable assumptions, we can give no assurance that such expectations or assumptions will be achieved.  Important factors that could cause actual results to differ materially from those in the forward-looking statements are described under Part I, Item 2, Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations, &#8220;Forward-Looking Statements,&#8221; in this Quarterly Report and under Part I, Item IA, &#8220;Risk Factors,&#8221; in our Annual Report.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">3</font></div></div><hr style="page-break-after:always"><div><a name="s469681B94FBBA554DAA1D2B84B50B4FD"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">INFORMATION AVAILABLE ON OUR WEBSITE</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We make available, free of charge, on our website (</font><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">www.onegas.com</font><font style="font-family:inherit;font-size:10pt;">) copies of our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, amendments to those reports filed or furnished to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act and reports of holdings of our securities filed by our officers and directors under Section 16 of the Exchange Act as soon as reasonably practicable after filing such material electronically or otherwise furnishing it to the SEC.&#160;&#160;Copies of our Code of Business Conduct and Ethics, Corporate Governance Guidelines and Director Independence Guidelines are also available on our website, and we will provide copies of these documents upon request.&#160;&#160;Our website and any contents thereof are not incorporated by reference into this report.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We also make available on our website the Interactive Data Files required to be submitted and posted pursuant to Rule 405 of Regulation S-T.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">4</font></div></div><hr style="page-break-after:always"><div><a name="s8DA323E89A5552106F07D2B84B837012"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">GLOSSARY</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The abbreviations, acronyms and industry terminology used in this Quarterly Report are defined as follows:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:34%;"></td><td style="width:66%;"></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Annual Report</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Annual Report on Form 10-K for the year ended December 31, 2016</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ASU</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Accounting Standards Update</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Bcf</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Billion cubic feet</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">CERCLA</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Federal Comprehensive Environmental Response, Compensation and Liability </font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;Act of 1980, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Clean Air Act</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Federal Clean Air Act, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Clean Water Act</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Federal Water Pollution Control Amendments of 1972, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">COSA</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Cost-of-Service Adjustment</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">DOT</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">United States Department of Transportation</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">EPA</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">United States Environmental Protection Agency</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">EPS</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Earnings per share</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Exchange Act</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Securities Exchange Act of 1934, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">FASB</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Financial Accounting Standards Board</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">GAAP</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Accounting principles generally accepted in the United States of America</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">GRIP</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Texas Gas Reliability Infrastructure Program</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">GSRS</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kansas Gas System Reliability Surcharge</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Heating Degree Day or HDD</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A measure designed to reflect the demand for energy needed for heating based on</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;the extent to which the daily average temperature falls below a reference</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;temperature for which no heating is required, usually 65 degrees Fahrenheit</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">IRS</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Internal Revenue Service</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">KCC</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kansas Corporation Commission</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">KDHE</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Kansas Department of Health and Environment</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">LDCs</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Local distribution companies</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">MMcf</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Million cubic feet</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Moody&#8217;s</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Moody&#8217;s Investors Service, Inc.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NPRM</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Notice of Proposed Rulemaking</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">NYMEX</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">New York Mercantile Exchange</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">OCC</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Oklahoma Corporation Commission</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas, Inc.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas Credit Agreement</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas&#8217; $700 million revolving credit agreement, which expires January, 2019</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONEOK</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONEOK, Inc. and its subsidiaries</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">PBRC</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Performance-Based Rate Change</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">PHMSA</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">United States Department of Transportation Pipeline and Hazardous Materials</font></div><div style="text-align:left;padding-left:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Safety Administration</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Pipeline Safety, Regulatory Certainty </font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;and Job Creation Act</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Pipeline Safety, Regulatory Certainty and Job Creation Act of 2011, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Quarterly Report(s)</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Quarterly Report(s) on Form 10-Q</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">RRC</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Railroad Commission of Texas</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">S&amp;P</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Standard &amp; Poor&#8217;s Ratings Services</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">SEC</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Securities and Exchange Commission</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Securities Act</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Securities Act of 1933, as amended</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Senior Notes</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:6px;text-indent:-6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas&#8217; registered notes consisting of $300 million of 2.07 percent senior notes due 2019, $300 million of 3.61 percent senior notes due 2024 and $600 million of 4.658 percent notes due 2044.</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Separation and Distribution Agreement</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Separation and Distribution Agreement dated January 14, 2014, between ONEOK</font></div><div style="text-align:left;padding-left:6px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">and ONE Gas</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">WNA</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Weather-normalization adjustments</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">eXtensible Business Reporting Language</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">5</font></div></div><hr style="page-break-after:always"><div><a name="s0FA2D068B8926239061BD2B84BA38F06"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">PART I - FINANCIAL INFORMATION</font></div><div><a name="s8CC8B72261FCC622D311D2B84BD6E161"></a></div><div style="line-height:120%;text-align:left;padding-left:96px;text-indent:-96px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 1.  FINANCIAL STATEMENTS</font></div><div><a name="s7C710D559B6CFF89816CD2B8463890BD"></a></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"></td></tr><tr><td style="width:74%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">STATEMENTS OF INCOME</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Revenues</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">550,408</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">508,364</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cost of natural gas</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">263,154</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">235,729</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">287,254</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">272,635</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Operating expenses</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Operations and maintenance</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">109,357</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">106,131</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Depreciation and amortization</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">37,019</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">34,684</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">General taxes</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">15,746</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">15,747</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total operating expenses</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">162,122</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">156,562</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Operating income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">125,132</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116,073</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other income</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,246</font></div></td><td style="vertical-align:bottom;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">18</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other expense</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(340</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(455</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest expense, net</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(11,481</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,847</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income before income taxes</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">114,557</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">104,789</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income taxes</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(38,101</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(40,046</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Net income</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Earnings per share</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Basic</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.45</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.23</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Diluted</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.44</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.22</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Average shares (</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">thousands</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Basic</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,576</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52,519</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Diluted</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">53,056</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">53,107</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Dividends declared per share of stock</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">0.42</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">0.35</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">6</font></div></div><hr style="page-break-after:always"><div><a name="sC4D531D68DC7B6692AFAD2B8462DB6EE"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="8"></td></tr><tr><td style="width:67%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">STATEMENTS OF COMPREHENSIVE INCOME</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other comprehensive income (loss), net of tax</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in pension and other postemployment benefit plan liability, net of tax of $(80) and $(72), respectively</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total other comprehensive income (loss), net of tax</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Comprehensive income</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,585</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,859</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">7</font></div></div><hr style="page-break-after:always"><div><a name="sF13BA1157459BD4C71BDD2B845D419A7"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"></td></tr><tr><td style="width:74%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">BALANCE SHEETS</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">December 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Assets</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Property, plant and equipment</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Property, plant and equipment</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5,468,277</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">5,404,168</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accumulated depreciation and amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,694,389</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,672,548</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net property, plant and equipment</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,773,888</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,731,620</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current assets</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash and cash equivalents</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13,206</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">14,663</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accounts receivable, net</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">249,155</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">290,944</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Materials and supplies</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">34,288</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">34,084</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Natural gas in storage</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">91,231</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">125,432</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory assets</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">74,636</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">83,146</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other current assets</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">18,616</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">20,654</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total current assets</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">481,132</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">568,923</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Goodwill and other assets</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory assets</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Goodwill</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">157,953</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">157,953</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other assets</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">46,563</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">43,773</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total goodwill and other assets</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">634,854</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">642,248</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total assets</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4,889,874</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,942,791</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">8</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"></td></tr><tr><td style="width:74%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">BALANCE SHEETS</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(Continued)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">December 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Equity and Liabilities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Equity and long-term debt</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Common stock, $0.01 par value:</font></div><div style="text-align:left;padding-left:12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">authorized 250,000,000 shares; issued 52,598,005 shares and outstanding 52,431,914 shares at </font></div><div style="text-align:left;padding-left:12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;&#160;&#160;March 31, 2017; issued 52,598,005 and outstanding 52,283,260 shares at December 31, 2016</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">526</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">526</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Paid-in capital</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,732,335</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,749,574</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Retained earnings</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">226,195</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">161,021</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accumulated other comprehensive income (loss)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(4,586</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(4,715</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Treasury stock, at cost: 166,091 shares at March 31, 2017 and 314,745 shares at December 31, 2016</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,892</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(18,126</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;&#160;&#160;Total equity</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,944,578</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,888,280</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Long-term debt, excluding current maturities, and net of issuance costs of $8,648 and $8,851, respectively</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,192,647</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,192,446</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total equity and long-term debt</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,137,225</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,080,726</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current liabilities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Notes payable</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">85,400</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">145,000</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accounts payable</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,142</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">131,988</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued interest</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,667</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">18,854</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued taxes other than income</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">37,431</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">42,571</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued liabilities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">12,474</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">22,931</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Customer deposits</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">61,945</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">61,209</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other current liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">26,884</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">21,380</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total current liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">307,943</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">443,933</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Deferred credits and other liabilities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Deferred income taxes</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,065,096</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,038,568</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Employee benefit obligations</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">300,535</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">303,507</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other deferred credits</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">79,075</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">76,057</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total deferred credits and other liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,444,706</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,418,132</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Commitments and contingencies</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total liabilities and equity</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4,889,874</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,942,791</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">9</font></div></div><hr style="page-break-after:always"><div><a name="s647FE0262B5530E2A4E5D2B84CCFF65E"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This page intentionally left blank.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">10</font></div></div><hr style="page-break-after:always"><div><a name="sACDFFF5669A31A1F0BB9D2B845F87C0A"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"></td></tr><tr><td style="width:74%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">STATEMENTS OF CASH FLOWS</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Operating activities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Adjustments to reconcile net income to net cash provided by operating activities:</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Depreciation and amortization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">37,019</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">34,684</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Deferred income taxes</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">37,461</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">16,113</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Share-based compensation expense</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,421</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,101</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Provision for doubtful accounts</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,281</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,384</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Changes in assets and liabilities:</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accounts receivable</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">39,508</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">19,801</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Materials and supplies</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(204</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,617</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income tax receivable</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,397</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">38,877</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Natural gas in storage</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">34,201</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">61,600</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Asset removal costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(10,387</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(14,171</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accounts payable</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(53,957</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(40,060</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued interest</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(11,187</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,219</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued taxes other than income</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(5,140</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">535</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Accrued liabilities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(10,457</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(16,470</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Customer deposits</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">736</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,098</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory assets and liabilities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">18,641</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(593</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other assets and liabilities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,447</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">23,848</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash provided by operating activities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">162,236</font></div></td><td style="vertical-align:bottom;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">188,888</font></div></td><td style="vertical-align:bottom;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Investing activities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Capital expenditures</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(70,471</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(75,261</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">61</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">392</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash used in investing activities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(70,410</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(74,869</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Financing activities</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Repayments of notes payable, net</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(59,600</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(12,500</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Repurchase of common stock</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(2,469</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(24,066</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Dividends paid</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(22,034</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(18,380</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Tax withholdings related to net share settlements of stock compensation</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,180</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(8,849</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash used in financing activities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(93,283</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(63,795</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in cash and cash equivalents</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,457</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">50,224</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash and cash equivalents at beginning of period</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">14,663</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,433</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash and cash equivalents at end of period</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13,206</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52,657</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">11</font></div></div><hr style="page-break-after:always"><div><a name="s524AECD3A4E075C666EAD2B845EACA55"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.90243902439025%;border-collapse:collapse;text-align:left;"><tr><td colspan="10"></td></tr><tr><td style="width:52%;"></td><td style="width:12%;"></td><td style="width:11%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">STATEMENT OF EQUITY</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Common Stock Issued</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Common Stock</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Paid-in Capital</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">(Shares)</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">January 1, 2017</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,598,005</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">526</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,749,574</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cumulative effect of accounting change</font></div><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other comprehensive income</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Repurchase of common stock</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Common stock issued and other</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(17,469</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Common stock dividends - $0.42 per share</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">230</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">March 31, 2017</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,598,005</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">526</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,732,335</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">12</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.90243902439025%;border-collapse:collapse;text-align:left;"><tr><td colspan="14"></td></tr><tr><td style="width:42%;"></td><td style="width:8%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:12%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">ONE Gas, Inc.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td colspan="5" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">STATEMENT OF EQUITY</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(Continued)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Unaudited</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Retained Earnings</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Treasury Stock</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Accumulated Other Comprehensive Income (Loss)</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total Equity</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="12" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:17px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">January 1, 2017</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">161,021</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(18,126</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(4,715</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,888,280</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cumulative effect of accounting change<br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,982</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,982</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other comprehensive income</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Repurchase of common stock</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(2,469</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(2,469</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Common stock issued and other</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,703</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(6,766</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Common stock dividends - $0.42 per share</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(22,264</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(22,034</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">March 31, 2017</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">226,195</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,892</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(4,586</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,944,578</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">See accompanying Notes to the Financial Statements.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">13</font></div></div><hr style="page-break-after:always"><div><a name="sBBD3DCDF98847F55D12CD2B8470C9E70"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ONE Gas, Inc.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">NOTES TO THE FINANCIAL STATEMENTS</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s654D30E4C3319C09D2C5D2B845BBB30E"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">1.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our accompanying unaudited financial statements have been prepared pursuant to the rules and regulations of the SEC.  These statements also have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented.  All such adjustments are of a normal recurring nature.  The </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">&#32;year-end balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP.  These unaudited financial statements should be read in conjunction with the audited financial statements and footnotes in our Annual Report.  Due to the seasonal nature of our business, the results of operations for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, are not necessarily indicative of the results that may be expected for a 12-month period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We provide natural gas distribution services to more than </font><font style="font-family:inherit;font-size:10pt;">2 million</font><font style="font-family:inherit;font-size:10pt;">&#32;customers through our divisions in Oklahoma, Kansas and Texas through Oklahoma Natural Gas, Kansas Gas Service and Texas Gas Service, respectively.  We serve residential, commercial, industrial and transportation customers in all three states.  In addition, we also provide natural gas distribution services to wholesale and public authority customers.</font></div><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</font><font style="font-family:inherit;font-size:10pt;">&#32;- The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provision for doubtful accounts, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances.  Nevertheless, actual results may differ significantly from the estimates.  Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Segments </font><font style="font-family:inherit;font-size:10pt;">- We operate in one reportable and operating business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.  The accounting policies for our segment are the same as described in Note 1 of our Notes to the Financial Statements in our Annual Report.  We evaluate our financial performance principally on operating income.  For the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">, we had no single external customer from which we received 10 percent or more of our gross revenues.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Recently Issued Accounting Standards Update</font><font style="font-family:inherit;font-size:10pt;">&#160;- In March 2017, the FASB issued ASU 2017-07, &#8220;Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,&#8221; which requires (1) separation of net periodic service costs for pension and other postemployment benefits into service cost and other components, (2) presentation of the service cost component in the same line as other compensation costs rendered by pertinent employees during the period, which will be the only portion of benefit cost eligible for capitalization and (3) reporting the other components of net periodic benefit costs separately from the service cost component and outside a subtotal of income from operations.&#160; We are evaluating the impact of this guidance, which is required to be adopted for our interim and annual reports for periods beginning after December 15, 2017, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In January 2017, the FASB issued ASU 2017-04, &#8220;Intangibles - Goodwill and Other (Topic 350):  Simplifying the Test for Goodwill Impairment,&#8221; which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 of the goodwill test, where the measurement of a goodwill impairment loss was determined by comparing the implied fair value of a reporting unit&#8217;s goodwill with the carrying amount of that goodwill.  Upon adoption, a goodwill impairment will be the amount by which a reporting unit&#8217;s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.&#160; This new guidance is required for our interim and annual reports for periods beginning after December 15, 2019, and early adoption is permitted.  We do not expect this guidance to have a material impact on our financial statements and will adjust our goodwill testing procedures accordingly upon adoption.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In March 2016, the FASB issued ASU 2016-09, &#8220;Improvements to Employee Share-Based Payment Accounting,&#8221; which includes various new aspects to simplify how share-based payments are accounted for and presented in the financial statements. The new standard modifies several aspects of the accounting and reporting for employee share-based payments and related tax accounting </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">14</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">impacts, including the presentation in the statements of operations and cash flows.  We adopted this new guidance in the current quarter, and in accordance with the transition requirements, we recorded </font><font style="font-family:inherit;font-size:10pt;">$5.2 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of excess tax benefits in income tax expense and will transition all provisions of this new guidance prospectively, other than our presentation of our withholding shares for tax-withholding purposes, which will be accounted for retrospectively in the financing activities section of the statement of cash flows.  We recorded a noncash cumulative-effect increase of&#160;</font><font style="font-family:inherit;font-size:10pt;">$11.0 million</font><font style="font-family:inherit;font-size:10pt;">&#160;to retained earnings, with an offset to a deferred tax asset, as of the beginning of the reporting period in 2017, for excess tax benefits earned prior to January 1, 2017, that had not been recognized. We continue our use of the estimation method to account for share unit awards forfeitures rather than actual forfeitures. The retrospective impact of our withholding shares for tax-withholding purposes to our Statement of Cash Flows for the three months ended March 31, 2016, was a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;increase to net cash provided by operating activities and a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;decrease to net cash used in financing activities.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In February 2016, the FASB issued ASU 2016-02, &#8220;Leases (Topic 842),&#8221; which prescribes recognizing lease assets and liabilities on the balance sheet and includes disclosure of key information about leasing arrangements.  &#160;A modified retrospective transition approach is required for leases existing at the time of adoption.  We are evaluating our population of leases, analyzing lease agreements, and holding meetings with cross-functional teams to determine the potential impact of this accounting standard on our financial position and results of operations and the transition approach we will utilize.  This new guidance is required for our interim and annual reports for periods beginning after December 15, 2018, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In May 2014, the FASB issued ASU 2014-09, &#8220;Revenue from Contracts with Customers,&#8221; which clarifies and converges the revenue recognition principles under GAAP and International Financial Reporting Standards. In July 2015, FASB delayed the effective date for one year.  We have substantially completed evaluating all of our sources of revenue to determine the potential effect on our financial position, results of operations, cash flows and the related accounting policies and business processes.  We continue to monitor accounting task forces and the FASB for additional implementation guidance related to: (1)  the accounting for funds received from third parties to partially or fully reimburse the cost of construction of an asset; (2) the evaluation of collectability from customers if a utility has regulatory mechanisms to help assure recovery of uncollected accounts from ratepayers; and (3) the accounting for alternative revenue programs, such as performance-based ratemaking and weather normalization, that may impact the final conclusions of our evaluation.  Until these items are resolved, we cannot complete our evaluation of the potential effect the new guidance will have on our financial position,  results of operations, cash flows, business processes or the transition method we will utilize to adopt the new guidance.  We will adopt this new guidance for our interim and annual reports beginning with the first quarter 2018.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s29BDFC068B67DE983FB7D2B845C85E58"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">2.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">REGULATORY ASSETS AND LIABILITIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The tables below present a summary of regulatory assets, net of amortization, and liabilities for the periods indicated:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15"></td></tr><tr><td style="width:54%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:8%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">32,110</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">417,402</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">449,512</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">812</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,906</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">8,718</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4,019</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5,030</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,049</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">74,636</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">504,974</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">60,656</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">490,994</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) Included in other current liabilities in our Balance Sheets.</font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">15</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15"></td></tr><tr><td style="width:54%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:8%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">December 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">31,498</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">427,448</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">458,946</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">812</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,108</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,920</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,274</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,966</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,240</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">83,146</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">523,668</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">71,224</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">511,746</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) Included in other current liabilities in our Balance Sheets.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Regulatory assets on our Balance Sheets, as authorized by various regulatory authorities, are probable of recovery.  Base rates are designed to provide a recovery of costs during the period rates are in effect, but do not generally provide for a return on investment for amounts we have deferred as regulatory assets.  All of our regulatory assets are subject to review by the respective regulatory authorities during future regulatory proceedings.  We are not aware of any evidence that these costs will not be recoverable through either riders or base rates, and we believe that we will be able to recover such costs, consistent with our historical recoveries.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s8F06BBD00AEDA12AE375D2B845DF2FB6"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">3.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CREDIT FACILITY AND SHORT-TERM NOTES PAYABLE</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The ONE Gas Credit Agreement contains certain financial, operational and legal covenants.  Among other things, these covenants include maintaining ONE Gas&#8217; debt-to-capital ratio of no more than </font><font style="font-family:inherit;font-size:10pt;">70 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;at the end of any calendar quarter.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, our debt-to-capital ratio was </font><font style="font-family:inherit;font-size:10pt;">40 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;and we were in compliance with all covenants under the ONE Gas Credit Agreement.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have a commercial paper program under which we may issue unsecured commercial paper up to a maximum amount of </font><font style="font-family:inherit;font-size:10pt;">$700 million</font><font style="font-family:inherit;font-size:10pt;">&#32;to fund short-term borrowing needs.  The maturities of the commercial paper notes may vary but may not exceed </font><font style="font-family:inherit;font-size:10pt;">270</font><font style="font-family:inherit;font-size:10pt;">&#32;days from the date of issue.  The commercial paper notes are generally sold at par less a discount representing an interest factor.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The ONE Gas Credit Agreement is available to repay the commercial paper notes, if necessary.  Amounts outstanding under the commercial paper program reduce the borrowing capacity under the ONE Gas Credit Agreement.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">$85.4 million</font><font style="font-family:inherit;font-size:10pt;">&#32;in short-term borrowings, </font><font style="font-family:inherit;font-size:10pt;">$1.8 million</font><font style="font-family:inherit;font-size:10pt;">&#32;in letters of credit issued under the ONE Gas Credit Agreement and </font><font style="font-family:inherit;font-size:10pt;">$612.8 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of remaining credit available under the ONE Gas Credit Agreement. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sA50118CD585995B2D7D3D2B84607DB07"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">4.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">LONG-TERM DEBT</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have senior notes consisting of </font><font style="font-family:inherit;font-size:10pt;">$300 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of </font><font style="font-family:inherit;font-size:10pt;">2.07 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2019</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">$300 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of </font><font style="font-family:inherit;font-size:10pt;">3.61 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2024</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">$600 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of </font><font style="font-family:inherit;font-size:10pt;">4.658 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2044</font><font style="font-family:inherit;font-size:10pt;">.  The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of </font><font style="font-family:inherit;font-size:10pt;">$100 million</font><font style="font-family:inherit;font-size:10pt;">&#32;or more.  Such events of default would entitle the trustee or the holders of </font><font style="font-family:inherit;font-size:10pt;">25 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;in aggregate principal amount of the outstanding Senior Notes to declare those Senior Notes immediately due and payable in full.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sF186D37DDA933A49FE29D2B845EF812E"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">5.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EQUITY</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Treasury Shares</font><font style="font-family:inherit;font-size:10pt;">&#160;- In the first quarter of 2017, we repurchased approximately&#160;</font><font style="font-family:inherit;font-size:10pt;">37 thousand</font><font style="font-family:inherit;font-size:10pt;">&#160;shares of our common stock for approximately&#160;</font><font style="font-family:inherit;font-size:10pt;">$2.5 million</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Dividends Declared - </font><font style="font-family:inherit;font-size:10pt;">In May 2017, we declared a dividend of </font><font style="font-family:inherit;font-size:10pt;">$0.42</font><font style="font-family:inherit;font-size:10pt;">&#32;per share (</font><font style="font-family:inherit;font-size:10pt;">$1.68</font><font style="font-family:inherit;font-size:10pt;">&#32;per share on an annualized basis) for shareholders of record as of May 15, 2017, payable June 1, 2017.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">16</font></div></div><hr style="page-break-after:always"><div><a name="sF2ECA2AE2DB82139BD9CD2B845C0ADBC"></a></div><div></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">6.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#32;ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our Statements of Income for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.484375%;border-collapse:collapse;text-align:left;"><tr><td colspan="10"></td></tr><tr><td style="width:47%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:12%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:12%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:23%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Details about Accumulated Other Comprehensive</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Affected Line Item in the</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Income (Loss) Components</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Statements of Income</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and other postemployment benefit plan obligations (a)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,648</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">10,037</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,499</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">9,129</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory adjustments (b)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,290</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(8,941</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">209</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">188</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income before income taxes</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(80</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(72</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income tax expense</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total reclassifications for the period</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost. See Note 8 for additional detail of our net periodic benefit cost</font><font style="font-family:inherit;font-size:9pt;font-weight:bold;">.</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(b) Regulatory adjustments represent pension and other postemployment benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.  See Note 2 for additional disclosures of regulatory assets and liabilities.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sA7C2BE3BFAD101592837D2B845CB1C6A"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">7.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EARNINGS PER SHARE</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Basic EPS is based on net income and is calculated based upon the daily weighted-average number of common shares outstanding during the periods presented.  Also, this calculation includes fully vested stock awards that have not yet been issued as common stock. Diluted EPS includes basic EPS, plus unvested stock awards granted under our compensation plans, but only to the extent these instruments dilute earnings per share. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="11"></td></tr><tr><td style="width:62%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:11%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,576</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.45</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">480</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">53,056</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.44</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"><tr><td colspan="11"></td></tr><tr><td style="width:62%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:11%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52,519</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.23</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">588</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">53,107</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.22</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">17</font></div></div><hr style="page-break-after:always"><div><a name="s85511C416B59D6BA0E34D2B845FF571A"></a></div><div></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">8.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EMPLOYEE BENEFIT PLANS</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the components of net periodic benefit cost for our pension and other postemployment benefit plans for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7"></td></tr><tr><td style="width:68%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Pension Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,044</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,014</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,113</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">11,387</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(14,624</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(15,296</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,027</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,886</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,560</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">7,991</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7"></td></tr><tr><td style="width:68%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:14%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Other Postemployment Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">627</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">638</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,472</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,627</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(3,147</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(3,071</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,621</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,151</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">424</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">437</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recover qualified pension benefit plan and other postemployment benefit plan costs through rates charged to our customers.  Certain utility commissions require that the recovery of these costs be based on specific guidelines.  The difference between these regulatory-based amounts and the periodic benefit cost calculated pursuant to GAAP is deferred as a regulatory asset or liability and amortized to expense over periods in which this difference will be recovered in rates, as authorized by the applicable utility commission.  Regulatory deferrals related to net periodic benefit cost were not material for the&#160;three months ended&#160;March 31, 2017.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sF5D0C7C32287EFD2A424D2B845E5BB12"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">9.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">COMMITMENTS AND CONTINGENCIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Environmental Matters</font><font style="font-family:inherit;font-size:10pt;">&#32;- We are subject to multiple historical, wildlife preservation and environmental laws and/or regulations, which affect many aspects of our present and future operations.  Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetland preservation, hazardous materials transportation, and pipeline and facility construction.  These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits and other approvals.  Failure to comply with these laws, regulations, licenses and permits may expose us to fines, penalties and/or interruptions in our operations that could be material to our results of operations.  In addition, emission controls and/or other regulatory or permitting mandates under the Clean Air Act and other similar federal and state laws could require unexpected capital expenditures.  We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us.  Revised or additional statutes or regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition and results of operations.  Our expenditures for environmental investigation, and remediation compliance to-date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">18</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We own or retain legal responsibility for the environmental conditions at </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;">&#32;former manufactured natural gas sites in Kansas.  These sites contain potentially harmful materials that are subject to control or remediation under various environmental laws and regulations.  A consent agreement with the KDHE governs all work at these sites.  The terms of the consent agreement require us to investigate these sites and set remediation activities based upon the results of the investigations and risk analysis.  Remediation typically involves the management of contaminated soils and may involve removal of structures and monitoring and/or remediation of groundwater.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have completed or addressed removal of the source of soil contamination at </font><font style="font-family:inherit;font-size:10pt;">11</font><font style="font-family:inherit;font-size:10pt;">&#32;of the </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;">&#32;sites, and continue to monitor groundwater at </font><font style="font-family:inherit;font-size:10pt;">eight</font><font style="font-family:inherit;font-size:10pt;">&#32;of the </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;">&#32;sites according to plans approved by the KDHE.  Regulatory closure has been achieved at </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;of the sites, subject to any future regulatory remediation requirements that may require additional costs. During 2016, we completed a site assessment at the twelfth site where no active soil remediation has occurred.  We have submitted a work plan to the KDHE for approval to remove contaminated soil at this site.  Costs associated with the remediation at this site are not expected to be material to our results of operations or financial position. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With regard to one of our former manufactured natural gas sites, periodic monitoring and a 2016 interim site investigation indicated elevated levels of potentially harmful materials.  Additional testing and work plan development is underway in 2017 to determine a remediation work plan to present to the KDHE for approval, which could impact our estimates of the cost of remediation at this site.  In the fourth quarter of 2016, we estimated the potential costs associated with additional investigation and remediation to be in the range of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;">&#32;to </font><font style="font-family:inherit;font-size:10pt;">$7.0 million</font><font style="font-family:inherit;font-size:10pt;">.  A single reliable estimate of the remediation costs is not feasible due to the amount of uncertainty in the ultimate remediation approach that will be utilized.  Accordingly, we recorded a reserve of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;">&#32;for this site in the fourth quarter of 2016.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">.  A number of environmental issues may exist with respect to manufactured gas plants that are unknown to us.  Accordingly, future costs are dependent on the final determination and regulatory approval of any remedial actions, the complexity of the site, level of remediation required, changing technology and governmental regulations, and to the extent not recovered by insurance or recoverable in rates from our customers, could be material to our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With the trend toward stricter standards, greater regulation and more extensive permit requirements for the types of assets operated by us that are subject to environmental regulation, our environmental expenditures could increase in the future, and such expenditures may not be fully recovered by insurance or recoverable in rates from our customers, and those costs may adversely affect our financial condition, results of operations and cash flows.  We do not expect expenditures for these matters to have a material adverse effect on our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Pipeline Safety</font><font style="font-family:inherit;font-size:10pt;">&#32;- We are subject to PHMSA regulations, including integrity-management regulations. PHMSA regulations require pipeline companies operating high-pressure transmission pipelines to perform integrity assessments on pipeline segments that pass through densely populated areas or near specifically designated high-consequence areas. In January 2012, the Pipeline Safety, Regulatory Certainty and Job Creation Act was signed into law. The law increased maximum penalties for violating federal pipeline safety regulations and directs the DOT and the Secretary of Transportation to conduct further review or studies on issues that may or may not be material to us. These issues include, but are not limited to, the following:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an evaluation of whether natural gas pipeline integrity-management requirements should be expanded beyond current high-consequence areas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a verification of records for pipelines in class 3 and 4 locations and high-consequence areas to confirm maximum allowable operating pressures; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a requirement to test previously untested pipelines operating above </font><font style="font-family:inherit;font-size:10pt;">30 percent</font><font style="font-family:inherit;font-size:10pt;">&#32;yield strength in high-consequence areas.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In April 2016, PHMSA published a NPRM, the Safety of Gas Transmission &amp; Gathering Lines Rule, in the Federal Register to revise pipeline safety regulations applicable to the safety of onshore natural gas transmission and gathering pipelines.  Proposals include changes to pipeline integrity management requirements and other safety-related requirements.  The NPRM comment period ended July 7, 2016, and comments are under review by PHMSA.  The potential capital and operating expenditures associated with the NPRM are currently being evaluated and could be significant depending on the final regulations.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Legal Proceedings</font><font style="font-family:inherit;font-size:10pt;">&#32;- We are a party to various litigation matters and claims that have arisen in the normal course of our operations.  While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">19</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">losses from such matters, individually and in the aggregate, are not material.  Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our results of operations, financial position or cash flows.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s265C6EEBEB6D4566195CD2B845BD1486"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">10.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;text-indent:-48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Treatment</font><font style="font-family:inherit;font-size:10pt;">&#32;- We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery.  The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If certain conditions are met, we may elect to designate a derivative instrument as a hedge to mitigate the risk of exposure to changes in fair values or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The table below summarizes the various ways in which we account for our derivative instruments and the impact on our financial statements:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"></td></tr><tr><td style="width:23%;"></td><td style="width:3%;"></td><td style="width:35%;"></td><td style="width:3%;"></td><td style="width:36%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Recognition and Measurement</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Accounting Treatment</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Balance Sheet</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income Statement</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">Normal purchases and</font></div><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">normal sales</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at historical cost</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value not recognized in earnings</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Mark-to-market</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at fair value</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value recognized in, and</font></div><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">recoverable through, the purchased-gas cost adjustment mechanisms</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have not elected to designate any of our derivative instruments as hedges.  Premiums paid and any cash settlements received associated with the commodity derivative instruments entered into by us are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Determining Fair Value</font><font style="font-family:inherit;font-size:10pt;">&#32;- We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.  We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed.  We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Fair Value Hierarchy</font><font style="font-family:inherit;font-size:10pt;">&#32;- At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value.  The levels of the hierarchy are described below:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date.  Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate.  These unobservable inputs are developed based on the best information available and may include our own internal data.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recognize transfers into and out of the levels as of the end of each reporting period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&#8217;s judgment regarding the degree to which market data is observable or corroborated by observable market data.  We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Derivative Instruments</font><font style="font-family:inherit;font-size:10pt;">&#32;-</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#160; </font><font style="font-family:inherit;font-size:10pt;">At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">no</font><font style="font-family:inherit;font-size:10pt;">&#32;purchased natural gas call options.  At </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, we held purchased natural gas call options for the heating season ended March 31, 2017, with total notional amounts of </font><font style="font-family:inherit;font-size:10pt;">14.3</font><font style="font-family:inherit;font-size:10pt;">&#32;Bcf, for which we paid premiums of </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;">$5.4 million</font><font style="font-family:inherit;font-size:10pt;">, and had a fair value of </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;">$6.5 million</font><font style="font-family:inherit;font-size:10pt;">.  The premiums paid and any cash settlements received are recorded as part of our unrecovered purchased-gas costs in current regulatory assets as these contracts are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.  Additionally, changes in fair value associated with these contracts are deferred as part of our unrecovered purchased-gas costs in our Balance Sheets.  Our natural gas call </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">20</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">options are classified as Level 1 as fair value amounts are based on unadjusted quoted prices in active markets including NYMEX-settled prices.  There were </font><font style="font-family:inherit;font-size:10pt;">no</font><font style="font-family:inherit;font-size:10pt;">&#32;transfers between levels for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;font-weight:normal;">March 31,</font><font style="font-family:inherit;font-size:10pt;">&#32;</font><font style="font-family:inherit;font-size:10pt;">2017 and 2016</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Other Financial Instruments</font><font style="font-family:inherit;font-size:10pt;">&#32;-</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#160;</font><font style="font-family:inherit;font-size:10pt;">The approximate fair value of cash and cash equivalents, accounts receivable and accounts payable is equal to book value, due to the short-term nature of these items.  Our cash and cash equivalents are comprised of bank and money market accounts, and are classified as Level 1.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Short-term notes payable and commercial paper are due upon demand and, therefore, the carrying amounts approximate fair value and are classified as Level 1.  The book value of our long-term debt, including current maturities, was </font><font style="font-family:inherit;font-size:10pt;">$1.2 billion</font><font style="font-family:inherit;font-size:10pt;">&#32;at both </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">.  The estimated fair value of our long-term debt, including current maturities, was </font><font style="font-family:inherit;font-size:10pt;">$1.2 billion</font><font style="font-family:inherit;font-size:10pt;">&#32;at both </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, respectively.  The estimated fair value of our Senior Notes at </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, was determined using quoted market prices, and are considered Level 2. </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">21</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sB677D427FBC7213126AAD2B84FBD095E"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 2.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">MANAGEMENT&#8217;S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following discussion and analysis should be read in conjunction with our unaudited financial statements and the Notes to the Financial Statements in this Quarterly Report, as well as our Annual Report.&#160;&#160;Due to the seasonal nature of our business, the results of operations for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, are not necessarily indicative of the results that may be expected for a 12-month period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sDA9908827473B30B0A54D2B84FDE4602"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">RECENT DEVELOPMENTS</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Dividend - </font><font style="font-family:inherit;font-size:10pt;">In May 2017, we declared a dividend of </font><font style="font-family:inherit;font-size:10pt;">$0.42</font><font style="font-family:inherit;font-size:10pt;">&#32;per share (</font><font style="font-family:inherit;font-size:10pt;">$1.68</font><font style="font-family:inherit;font-size:10pt;">&#32;per share on an annualized basis) for shareholders of record as of May 15, 2017, payable June 1, 2017.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">REGULATORY ACTIVITIES</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Oklahoma</font><font style="font-family:inherit;font-size:10pt;">&#32;- On March 15, 2017, Oklahoma Natural Gas filed its first annual PBRC following the general rate case that was approved in January 2016.  This filing was based on a calendar test year of 2016.  The PBRC filing demonstrates that Oklahoma Natural Gas is earning within the allowed range of 9.0 to 10.0 percent return on equity.  Therefore, Oklahoma Natural Gas is not seeking a modification in base rates.  The filing also requests an energy efficiency program true-up and utility incentive adjustment of approximately $1.9 million.  As required, PBRC filings are made annually on March 15, until the next general rate case, which is currently required to be filed on or before June 30, 2021, based on a calendar test year of 2020.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Kansas</font><font style="font-family:inherit;font-size:10pt;">&#32;- On April 11, 2017, Kansas Gas Service submitted an application to the KCC regarding the costs incurred at its 12 manufactured gas plant sites.  Consistent with prior KCC precedent, Kansas Gas Service requested approval to: (1) defer expenditures incurred after December 31, 2016, as a regulatory asset and to amortize and recover such costs from customers in a future base rate proceeding; (2) retain insurance recoveries up to $9.5 million, the amount Kansas Gas Service has spent for the period November 1, 1997, through December 31, 2016, and to exclude such amounts from the determination of the revenue requirement in future base rate proceedings; and (3) to share insurance recoveries (less legal and other costs prudently incurred in obtaining the insurance recoveries) in excess of $9.5 million between customers and shareholders.  Kansas Gas Service is currently working with the KCC staff and the Citizens&#8217; Utility Ratepayer Board on a procedural schedule.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In May 2016, Kansas Gas Service filed a request with the KCC for an increase in base rates, reflecting system investments and operating costs necessary to maintain the safety and reliability of its natural gas distribution system.  Kansas Gas Service&#8217;s request represented a net base rate increase of $28.0 million.  Kansas Gas Service is already recovering approximately $7.4 million from customers through the GSRS mechanism, resulting in a total base rate increase of $35.4 million.  In October 2016, Kansas Gas Service reached a unanimous settlement agreement with all parties for a net increase in base rates of approximately $8.1 million.  Including the GSRS of approximately $7.4 million, the total base rate increase is $15.5 million.  The agreement is a &#8220;black-box settlement,&#8221; meaning the parties agreed to a specific revenue number but no specific return on equity.  The KCC issued an order approving the unanimous settlement agreement in November 2016, with new rates effective January 1, 2017.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Texas</font><font style="font-family:inherit;font-size:10pt;">&#32;- </font><font style="font-family:inherit;font-size:10pt;font-style:italic;">West Texas Service Area - </font><font style="font-family:inherit;font-size:10pt;">On March 15, 2017, Texas Gas Service made GRIP filings for all customers in the West Texas Service Area in the amount of $4.5 million.  If approved, new rates are expected to become effective in July 2017.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In March 2016, Texas Gas Service filed a rate case requesting an increase in revenues of $12.8 million for its El Paso, Dell City and Permian service areas, as well as consolidation of these three areas.  In September 2016, the RRC approved the consolidation and a base rate increase of $8.8 million, which was based on a 9.5 percent return on equity and a 60.1 percent common equity ratio.   In October 2016, new rates went into effect for all customers, except for those in the incorporated cities of the former Permian service area.  Texas Gas Service filed for these new rates for customers in the incorporated cities of the former Permian service area in October 2016 and the rates became effective in December 2016.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Central Texas Service Area - </font><font style="font-family:inherit;font-size:10pt;">On March 3, 2017, Texas Gas Service made GRIP filings for the incorporated and environs customers of the consolidated Central Texas Service Area in the amount of $4.9 million.  If approved, new rates are expected to become effective in June 2017.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In June 2016, Texas Gas Service filed a rate case requesting an increase in revenues of $11.6 million for its Central Texas and South Texas service areas.  The filing included a request to consolidate the South Texas service area with the Central Texas service area.  Texas Gas Service filed this rate case directly with the incorporated cities of the Central Texas service area, which includes the city of Austin, and the RRC for the unincorporated areas.  In October 2016, all parties to the filing reached a </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">22</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">unanimous settlement agreement for an increase in revenues of $6.8 million for the new consolidated service area.  New rates were effective in November 2016, for customers in the incorporated cities of the former Central Texas service area.  RRC approval was received in November 2016 and new rates became effective for customers in the unincorporated areas of the new consolidated Central Texas Service Area the same month.  Texas Gas Service received approval for the same rates in the incorporated areas of the former South Texas service area with new rates effective in January 2017.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Gulf Coast Service Area - </font><font style="font-family:inherit;font-size:10pt;">In December 2015, Texas Gas Service filed a rate case requesting an increase in revenues of $3.1 million for its Galveston and South Jefferson County service areas and to consolidate these two service areas into a new Gulf Coast Service Area.  Texas Gas Service filed this rate case directly with the incorporated cities and the RRC for the unincorporated areas.  Texas Gas Service reached a unanimous settlement agreement with representatives of the incorporated cities and the staff of the RRC on behalf of the unincorporated areas for an increase in revenues of $2.3 million.  Following RRC approval, new rates became effective in May 2016.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Other Texas service areas - </font><font style="font-family:inherit;font-size:10pt;">In the normal course of business, Texas Gas Service has filed rate cases and sought GRIP and COSA increases in various other Texas jurisdictions to address investments in rate base and changes in expenses.  Annual rate increases associated with approved filings totaled $2.0 million in 2016.   </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sAEC13145EC983041B156D2B84841D3A0"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">FINANCIAL RESULTS AND OPERATING INFORMATION</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We operate in one reportable business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.   We evaluate our financial performance principally on operating income.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Selected Financial Results - </font><font style="font-family:inherit;font-size:10pt;">First-quarter 2017 net income was $76.5 million, or $1.44 per diluted share, compared with $64.7 million, or $1.22 per diluted share, in the first quarter 2016.  Our prospective adoption of ASU 2016-09, &#8220;Improvements to Employee Share-Based Payment Accounting,&#8221; resulted in favorable impacts to income tax expense and our net income in the first quarter 2017 from recording $5.2 million of excess tax benefits as a reduction to income tax expense.  The following table sets forth certain selected financial results for our operations for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15"></td></tr><tr><td style="width:49%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:11%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017 vs. 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Financial Results</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Increase (Decrease)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="14" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Millions of dollars, except percentages</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Natural gas sales</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">512.3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">471.4</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">40.9</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Transportation revenues</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">30.2</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29.8</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">0.4</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cost of natural gas</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">263.2</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">235.7</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">27.5</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">12</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin, excluding other revenues</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">279.3</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">265.5</font></div></td><td style="vertical-align:bottom;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.8</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other revenues</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7.9</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">7.1</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">0.8</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">11</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">287.2</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">272.6</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">14.6</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Operating costs</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">125.1</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">121.8</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3.3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Depreciation and amortization</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">37.0</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">34.7</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2.3</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Operating income</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">125.1</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116.1</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9.0</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">8</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Capital expenditures</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:3px double #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-top:2px;padding-bottom:2px;border-top:3px double #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">70.5</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;border-top:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">75.3</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:3px double #000000;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(4.8</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(6</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Net margin is comprised of total revenues less cost of natural gas.&#160; Cost of natural gas includes commodity purchases, fuel, storage, transportation, the cost of gas component of bad debts and other gas purchase costs recovered through our cost of natural gas regulatory mechanisms and does not include an allocation of general operating costs or depreciation and amortization.&#160; Our cost of natural gas regulatory mechanisms provide a method of recovering natural gas costs on an ongoing basis without a profit. Therefore, although our revenues will fluctuate with the cost of gas that we recover, net margin is not affected by fluctuations in the cost of natural gas.</font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">23</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth our net margin, excluding other revenues, by type of customer, for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15"></td></tr><tr><td style="width:49%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:11%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Net Margin, Excluding Other </font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017 vs. 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Revenues</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Increase (Decrease)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Natural gas sales</font></div></td><td colspan="14" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Millions of dollars, except percentages</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Residential</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">208.2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">194.7</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.5</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Commercial and industrial</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">38.9</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">38.8</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">0.1</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Wholesale and public authority</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2.0</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2.2</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(0.2</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin on natural gas sales</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">249.1</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">235.7</font></div></td><td style="vertical-align:bottom;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.4</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">6</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Transportation revenues</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">30.2</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29.8</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">0.4</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin, excluding other revenues</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">279.3</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">265.5</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.8</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our net margin on natural gas sales is comprised of two components, fixed and variable margin.  Fixed margin reflects the portion of our net margin attributable to the monthly fixed customer charge component of our rates, which does not fluctuate based on customer usage in each period.  Variable margin reflects the portion of our net margin that fluctuates with the volumes delivered and billed.  We believe that the combination of the significant residential component of our customer base, the fixed charge component of our sales margin and our regulatory rate mechanisms that we have in place result in a stable cash flow profile.  The following table sets forth our net margin on natural gas sales by revenue type for the periods indicated: </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15"></td></tr><tr><td style="width:49%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:11%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017 vs. 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Net Margin on Natural Gas Sales</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Increase (Decrease)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin on natural gas sales</font></div></td><td colspan="14" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Millions of dollars, except percentages</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Fixed margin</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">139.2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">141.9</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(2.7</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Variable margin</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">109.9</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">93.8</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">16.1</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net margin on natural gas sales</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">249.1</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">235.7</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.4</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">6</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;%</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Net margin increased </font><font style="font-family:inherit;font-size:10pt;">$14.6 million</font><font style="font-family:inherit;font-size:10pt;">&#32;for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the same period last year, due primarily to the following: </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $9.8 million from new rates in Texas and Kansas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $2.7 million from the impact of weather-normalization mechanisms, which offset warmer weather in 2017 compared with the same period in 2016;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $0.8 million in residential sales due primarily to net customer growth in Oklahoma and Texas; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $0.7 million due primarily to higher transportation volumes from customers in Kansas. </font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Operating costs increased </font><font style="font-family:inherit;font-size:10pt;">$3.3 million</font><font style="font-family:inherit;font-size:10pt;">&#32;for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the same period last year, due primarily to the following: </font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $2.4 million from the deferral in the first quarter of 2016 of certain information technology costs incurred as a result of our separation from ONEOK in 2014, which was approved in Oklahoma as a regulatory asset;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $1.5 million in outside services, fleet and materials expense due to pipeline maintenance activities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $1.0 million in information technology costs; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an increase of $0.9 million in bad debt expense; offset partially by</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a decrease of $1.9 million in legal-related costs due to lower claims activity; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a decrease of $1.5 million in employee-related costs due to lower share-based and other benefit costs.</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Depreciation and amortization expense increased </font><font style="font-family:inherit;font-size:10pt;">$2.3 million</font><font style="font-family:inherit;font-size:10pt;">&#32;for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the same period last year, due primarily to an increase in depreciation of $2.8 million from our capital expenditures being placed in service, offset by a decrease of $0.5 million in amortization expense associated primarily with other postemployment benefit deferrals in Kansas. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Capital Expenditures</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;- </font><font style="font-family:inherit;font-size:10pt;">Our capital expenditures program includes expenditures for pipeline integrity, extending service to new areas, modifications to customer service lines, increasing system capabilities, pipeline replacements, fleet, facilities and information technology assets.  It is our practice to maintain and upgrade our infrastructure, facilities and systems to ensure safe, reliable and efficient operations. </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">24</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Capital expenditures decreased $4.8 million for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the same period last year, due primarily to the timing of expenditures for our system maintenance activities and information technology systems.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Selected Operating Information - </font><font style="font-family:inherit;font-size:10pt;">The following tables set forth certain selected operating information for the periods indicated:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="26"></td></tr><tr><td style="width:27%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:4%;"></td><td style="width:1%;"></td><td style="width:6%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="16" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td colspan="8" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Variances</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="16" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td colspan="8" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2017 vs. 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-style:italic;">(in thousands)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="8" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2017</font></div></td><td colspan="8" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2016</font></div></td><td colspan="8" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Increase (Decrease)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Average Number of Customers</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">OK</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">KS</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">TX</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Total</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">OK</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">KS</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">TX</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Total</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">OK</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">KS</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">TX</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:2px solid #000000;"><div style="text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Residential</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">798</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">588</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">617</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2,003</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">793</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">586</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">611</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1,990</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">5</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">6</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">13</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Commercial and industrial</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">75</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">51</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">36</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">162</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">74</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">51</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">35</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">160</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Wholesale and public authority</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">3</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Transportation</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">5</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">6</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">1</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">12</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">5</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">6</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">1</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">12</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">Total customers</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">878</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">645</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">657</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2,180</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">872</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">643</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">650</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;">2,165</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">6</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">2</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">7</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">15</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:97.65625%;border-collapse:collapse;text-align:left;"><tr><td colspan="7"></td></tr><tr><td style="width:66%;"></td><td style="width:1%;"></td><td style="width:15%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:15%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="5" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="5" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Volumes </font><font style="font-family:inherit;font-size:9pt;font-weight:bold;font-style:italic;">(MMcf)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Natural gas sales</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Residential</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">50,133</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">51,686</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Commercial and industrial</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">14,159</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">14,488</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Wholesale and public authority</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">655</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">943</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total volumes sold</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">64,947</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">67,117</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Transportation</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">61,090</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">59,220</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total volumes delivered</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">126,037</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">126,337</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total volumes sold decreased for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the same period last year, due primarily to warmer temperatures in 2017.  The impact on residential and commercial margins was mitigated significantly by weather-normalization mechanisms in the first quarter of 2017. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Wholesale sales represent contracted natural gas volumes that exceed the needs of our residential, commercial and industrial customer base and are available for sale to other parties.  The impact to net margin from changes in volumes associated with these customers is minimal. </font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"><tr><td colspan="22"></td></tr><tr><td style="width:36%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:8%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:7%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="20" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="20" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="5" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="5" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017 vs. 2016</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Heating Degree Days</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Actual</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Normal</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Actual</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Normal</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Actual Variance</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="5" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Actual as a percent of Normal</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Oklahoma</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,392</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,775</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,565</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,775</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(11</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">78</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">%</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">88</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">%</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Kansas</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,986</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,503</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,120</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,502</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(6</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">79</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">%</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">85</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">%</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Texas</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">629</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,009</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">865</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">994</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(27</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)%</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">62</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">%</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">87</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">%</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Normal HDDs are established through rate proceedings in each of our rate jurisdictions for use primarily in weather-normalization billing calculations.  See further discussion on weather normalization in our Regulatory Overview section in Part 1, Item 1, &#8220;Business,&#8221; of our Annual Report.  Normal HDDs disclosed above are based on:</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">10-year weighted average HDDs as of December 31, 2014, for years 2005-2014, as calculated using 11 weather stations across Oklahoma and weighted on average customer count for Oklahoma; </font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">30-year average for years 1981-2010 published by the National Oceanic and Atmospheric Administration, as calculated using 13 weather stations across Kansas and weighted on HDDs by weather station and customers for Kansas; and</font></div></td></tr></table><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">25</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an average of HDDs authorized in our most recent rate proceeding in each jurisdiction, and weighted using a rolling 10-year average of actual natural gas distribution sales volumes by jurisdiction for Texas.</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Actual HDDs are based on the quarter-to-date, weighted average of:</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">11 weather stations and customers by month for Oklahoma; </font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">13 weather stations and customers by month for Kansas; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">9 weather stations and natural gas distribution sales volumes by service area for Texas.</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Through March 31, 2017, Kansas Gas Services&#8217; WNA clause required it to accrue the variation in net margin resulting from actual weather differing from normal weather occurring from November through March. Beginning in April 2017, Kansas Gas Services&#8217; WNA clause will require an accrual each month of the year.  Also, normal HDDs under the new WNA clause will be based on a 30-year average for years 1981-2010 published by the National Oceanic and Atmospheric Administration, as calculated using 4 weather stations across Kansas and weighted on HDDs by weather station and customers.  &#160;</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sA5E7882080D075C97656D2B85066FE59"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CONTINGENCIES</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We are a party to various litigation matters and claims that have arisen in the normal course of our operations.  While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material.  Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our results of operations, financial position or cash flows. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sCDE1BC8C3891151C4021D2B8506D916F"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">LIQUIDITY AND CAPITAL RESOURCES</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">General - </font><font style="font-family:inherit;font-size:10pt;">We have relied primarily on operating cash flow and commercial paper for our liquidity and capital resource requirements.  We fund operating expenses, working capital requirements, including purchases of natural gas, and capital expenditures primarily with cash from operations and commercial paper.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We believe that the combination of the significant residential component of our customer base, the fixed-charge component of our natural gas sales net margin and our regulatory rate mechanisms that we have in place result in a stable cash flow profile.  Because the energy consumption of residential customers is less volatile compared with commercial and industrial customers, our business historically has generated stable and predictable net margin and cash flows.  Additionally, we have several regulatory rate mechanisms in place to reduce the lag in earning a return on our capital expenditures.  We anticipate that our cash flow generated from operations and our expected short- and long-term financing arrangements will enable us to maintain our current and planned level of operations and provide us flexibility to finance our infrastructure investments.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our ability to access capital markets for debt and equity financing under reasonable terms depends on market conditions and our financial condition and credit ratings.  We believe that stronger credit ratings will provide a significant advantage to our business.  By maintaining a conservative financial profile and stable revenue base, we believe that we will be able to maintain an investment-grade credit rating, which we believe will provide us access to diverse sources of capital at favorable rates in order to finance our infrastructure investments.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Short-term Financing -</font><font style="font-family:inherit;font-size:10pt;">&#32;The ONE Gas Credit Agreement, which is scheduled to expire in January 2019, contains certain financial, operational and legal covenants. Among other things, these covenants include maintaining ONE Gas&#8217; total debt-to-capital ratio of no more than 70 percent at the end of any calendar quarter.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, our total debt-to-capital ratio was </font><font style="font-family:inherit;font-size:10pt;">40 percent</font><font style="font-family:inherit;font-size:10pt;">, and we were in compliance with all covenants under the ONE Gas Credit Agreement.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have a commercial paper program under which we may issue unsecured commercial paper up to a maximum amount of $700 million to fund short-term borrowing needs.  The maturities of the commercial paper notes may vary but may not exceed 270 days from the date of issue.  The commercial paper notes are generally sold at par less a discount representing an interest factor.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The ONE Gas Credit Agreement is available to repay the commercial paper notes, if necessary.  Amounts outstanding under the commercial paper program reduce the borrowing capacity under the ONE Gas Credit Agreement.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">$85.4 million</font><font style="font-family:inherit;font-size:10pt;">&#32;in short-term borrowings and </font><font style="font-family:inherit;font-size:10pt;">$1.8 million</font><font style="font-family:inherit;font-size:10pt;">&#32;in letters of credit issued under the ONE Gas Credit Agreement.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had approximately </font><font style="font-family:inherit;font-size:10pt;">$13.2 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of cash and cash equivalents and </font><font style="font-family:inherit;font-size:10pt;">$612.8 million</font><font style="font-family:inherit;font-size:10pt;">&#32;of remaining credit available under the ONE Gas Credit Agreement.  The total amount of short-term borrowings authorized by ONE Gas&#8217; Board of Directors is $1.2 billion.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">26</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Long-Term Debt - </font><font style="font-family:inherit;font-size:10pt;">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those Senior Notes immediately due and payable in full. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Credit Ratings</font><font style="font-family:inherit;font-size:10pt;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">-</font><font style="font-family:inherit;font-size:10pt;">&#32;&#32;Our credit ratings as of </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, were:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:58.59375%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:34%;"></td><td style="width:33%;"></td><td style="width:33%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Rating Agency</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Rating</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Outlook</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Moody&#8217;s</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Stable</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">S&amp;P</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">A-</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Positive</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our commercial paper is currently rated Prime-1 by Moody&#8217;s and A-2 by S&amp;P.  We intend to maintain strong credit metrics while we pursue a balanced approach to capital investment and a return of capital to shareholders via a dividend that we believe will be competitive with our peer group.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Pension and Other Postemployment Benefit Plans</font><font style="font-family:inherit;font-size:10pt;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">-</font><font style="font-family:inherit;font-size:10pt;">&#32;Information about our pension and other postemployment benefits plans, including anticipated contributions, is included under Note 11 of the ONE Gas Notes to the Financial Statements in our Annual Report.  See Note 8 of the Notes to the Financial Statements in this Quarterly Report for additional information. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s762BA78539D6E2C0D05FD2B8493FB916"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CASH FLOW ANALYSIS</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We use the indirect method to prepare our Statements of Cash Flows.  Under this method, we reconcile net income to cash flows provided by operating activities by adjusting net income for those items that impact net income but may not result in actual cash receipts or payments and changes in our assets and liabilities not classified as investing or financing activities during the period.  Items that impact net income but may not result in actual cash receipts or payments include, but are not limited to, depreciation and amortization, deferred income taxes, share-based compensation expense and provision for doubtful accounts. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth the changes in cash flows by operating, investing and financing activities for the periods indicated:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="12"></td></tr><tr><td style="width:62%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:10%;"></td><td style="width:1%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Variance</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017 vs. 2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Millions of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total cash provided by (used in):</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Operating activities</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">162.2</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">188.9</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(26.7</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Investing activities</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(70.4</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(74.8</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4.4</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Financing activities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(93.3</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(63.8</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(29.5</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in cash and cash equivalents</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1.5</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">50.3</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(51.8</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash and cash equivalents at beginning of period</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">14.7</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2.4</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">12.3</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:20px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Cash and cash equivalents at end of period</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">13.2</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52.7</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(39.5</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Operating Cash Flows</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">-</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;">Changes in cash flows from operating activities are due primarily to changes in net margin and operating expenses discussed in Financial Results and Operating Information.  Changes in natural gas prices and demand for our services or natural gas, whether because of general economic conditions, changes in supply or increased competition from other service providers, could affect our earnings and operating cash flows.</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;&#32;</font><font style="font-family:inherit;font-size:10pt;">Typically, our cash flows from operations are greater in the first half of the year compared with the second half of the year.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Before considering the impacts of operating asset and liability changes, cash flows were higher in the first quarter of 2017 compared with the same period in 2016, due primarily to an increase in net income, higher noncash expenses for depreciation and amortization and deferred income taxes.  The decrease in operating asset and liability changes more than offset these increases.  Working capital changes related to accounts receivable and natural gas in storage were impacted by higher costs of natural gas delivered to customers in the first quarter of 2017, compared with the same period in 2016.  Additionally, we collected a tax receivable in 2016 related to the extension of the IRS rules for bonus depreciation in late 2015.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">27</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Investing Cash Flows</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">-</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;">Cash used in investing activities decreased for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the prior period, due primarily to timing of capital expenditures during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Financing Cash Flows</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">-</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">&#32;</font><font style="font-family:inherit;font-size:10pt;">Cash used in financing activities increased for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, compared with the prior period, due primarily to larger repayments of notes payable and an increase in the dividend rate of seven cents in the first quarter of 2017 compared with the same period in 2016, offset by the purchases of fewer shares of treasury stock.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s88DEE0B722B08CB784B9D2B850B74A75"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ENVIRONMENTAL, SAFETY AND REGULATORY MATTERS</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Environmental Matters -&#160;</font><font style="font-family:inherit;font-size:10pt;">We are subject to multiple historical, wildlife preservation and environmental laws and/or regulations that affect many aspects of our present and future operations.  Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetland preservation, hazardous materials transportation, and pipeline and facility construction.  These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits and other approvals.  Failure to comply with these laws, regulations, licenses and permits may expose us to fines, penalties and/or interruptions in our operations that could be material to our results of operations.  In addition, emission controls and/or other regulatory or permitting mandates under the Clean Air Act and other similar federal and state laws could require unexpected capital expenditures.  We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us.  Revised or additional statutes or regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition and results of operations.  Our expenditures for environmental investigation, and remediation compliance to-date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We own or retain legal responsibility for the environmental conditions at </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;">&#32;former manufactured natural gas sites in Kansas.  These sites contain potentially harmful materials that are subject to control or remediation under various environmental laws and regulations.  A consent agreement with the KDHE governs all work at these sites.  The terms of the consent agreement require us to investigate these sites and set remediation activities based upon the results of the investigations and risk analysis.  Remediation typically involves the management of contaminated soils and may involve removal of structures and monitoring and/or remediation of groundwater.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have completed or addressed removal of the source of soil contamination at </font><font style="font-family:inherit;font-size:10pt;">11</font><font style="font-family:inherit;font-size:10pt;">&#32;of the </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;">&#32;sites, and continue to monitor groundwater at eight of the 12 sites according to plans approved by the KDHE.  Regulatory closure has been achieved at </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;of the sites, subject to any future regulatory remediation requirements that may require additional costs. During 2016, we completed a site assessment at the twelfth site where no active soil remediation has occurred.  We have submitted a work plan to the KDHE for approval to remove contaminated soil at this site.  Costs associated with the remediation at this site are not expected to be material to our results of operations or financial position. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With regard to one of our former manufactured natural gas sites, periodic monitoring and a 2016 interim site investigation indicated elevated levels of potentially harmful materials.  Additional testing and work plan development is underway in 2017 to determine a remediation work plan to present to the KDHE for approval, which could impact our estimates of the cost of remediation at this site.  In the fourth quarter of 2016, we estimated the potential costs associated with additional investigation and remediation to be in the range of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;">&#32;to </font><font style="font-family:inherit;font-size:10pt;">$7.0 million</font><font style="font-family:inherit;font-size:10pt;">.  A single reliable estimate of the remediation costs is not feasible due to the amount of uncertainty in the ultimate remediation approach that will be utilized.  Accordingly, we recorded a reserve of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;">&#32;for this site in the fourth quarter of 2016. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">.  A number of environmental issues may exist with respect to manufactured gas plants that are unknown to us.  Accordingly, future costs are dependent on the final determination and regulatory approval of any remedial actions, the complexity of the site, level of remediation required, changing technology and governmental regulations, and to the extent not recovered by insurance or recoverable in rates from our customers, could be material to our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With the trend toward stricter standards, greater regulation and more extensive permit requirements for the types of assets operated by us that are subject to environmental regulation, our environmental expenditures could increase in the future, and such expenditures may not be fully recovered by insurance or recoverable in rates from our customers, and those costs may </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">28</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">adversely affect our financial condition, results of operations and cash flows.  We do not expect expenditures for these matters to have a material adverse effect on our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Pipeline Safety&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#160;We are subject to PHMSA regulations, including integrity-management regulations.  PHMSA regulations require pipeline companies operating high-pressure transmission pipelines to perform integrity assessments on pipeline segments that pass through densely populated areas or near specifically designated high-consequence areas.  In January 2012, the Pipeline Safety, Regulatory Certainty and Job Creation Act was signed into law.  The law increased maximum penalties for violating federal pipeline safety regulations and directs the DOT and the Secretary of Transportation to conduct further review or studies on issues that may or may not be material to us.  These issues include, but are not limited to, the following:</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an evaluation of whether natural gas pipeline integrity-management requirements should be expanded beyond current high-consequence areas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a verification of records for pipelines in class 3 and 4 locations and high-consequence areas to confirm maximum allowable operating pressures; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a requirement to test previously untested pipelines operating above 30 percent yield strength in high-consequence areas.</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In April 2016, PHMSA published a NPRM, the Safety of Gas Transmission &amp; Gathering Lines Rule, in the Federal Register to revise pipeline safety regulations applicable to the safety of onshore natural gas transmission and gathering pipelines.  Proposals include changes to pipeline integrity management requirements and other safety-related requirements.  The NPRM comment period ended July 7, 2016, and comments are under review by PHMSA.  The potential capital and operating expenditures associated with the NPRM are currently being evaluated and could be significant depending on the final regulations.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Air and Water Emissions&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#160;The Clean Air Act, the Clean Water Act, analogous state laws and/or regulations promulgated thereunder, impose restrictions and controls regarding the discharge of pollutants into the air and water in the United States. Under the Clean Air Act, a federally enforceable operating permit is required for sources of significant air emissions.  We may be required to incur certain capital expenditures for air-pollution-control equipment in connection with obtaining or maintaining permits and approvals for sources of air emissions.  We do not expect that these expenditures will have a material impact on our respective results of operations, financial position or cash flows.  The Clean Water Act imposes substantial potential liability for the removal of pollutants discharged to waters of the United States and remediation of waters affected by such discharge.   </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">International, federal, regional and/or state legislative and/or regulatory initiatives may attempt to regulate greenhouse gas emissions.  We monitor relevant legislation and regulatory initiatives to assess the potential impact on our operations.  The EPA&#8217;s Mandatory Greenhouse Gas Reporting Rule requires annual greenhouse gas emissions reporting as carbon dioxide equivalents from affected facilities and for the natural gas delivered by us to our natural gas distribution customers who are not otherwise required to report their own emissions.  The additional cost to gather and report this emission data did not have, and we do not expect it to have, a material impact on our results of operations, financial position or cash flows.  In addition, Congress has considered, and may consider in the future, legislation to reduce greenhouse gas emissions, including carbon dioxide and methane.  Likewise, the EPA may institute additional regulatory rulemaking associated with greenhouse gas emissions.  At this time, no rule or legislation has been enacted for natural gas distribution that assesses any costs, fees or expenses on any of these emissions.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CERCLA&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#160;The federal CERCLA, also commonly known as Superfund, imposes strict, joint and several liability, without regard to fault or the legality of the original act, on certain classes of &#8220;persons&#8221; (defined under CERCLA) that caused and/or contributed to the release of a hazardous substance into the environment.  These persons include, but are not limited to, the owner or operator of a facility where the release occurred and/or companies that disposed or arranged for the disposal of the hazardous substances found at the facility.  Under CERCLA, these persons may be liable for the costs of cleaning up the hazardous substances released into the environment, damages to natural resources and the costs of certain health studies.  We do not expect that our responsibilities under CERCLA will have a material impact on our respective results of operations, financial position or cash flows.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Pipeline Security&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#160;The U.S. Department of Homeland Security&#8217;s Transportation Security Administration issued updated pipeline security guidelines in April 2012.  Our pipeline facilities have been reviewed according to the current guidelines and no material changes have been required to date.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Environmental Footprint&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#160;Our environmental and climate change strategy focuses on taking steps to minimize the impact of our operations on the environment.  These strategies include: (1) developing and maintaining an accurate greenhouse gas </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">29</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">emissions inventory according to current rules issued by the EPA; (2) improving the integrity of our various pipelines; (3) following developing technologies for emission control; and (4) utilizing practices to reduce the loss of methane from our facilities. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We participate in the EPA&#8217;s Natural Gas STAR Program to voluntarily reduce methane emissions. We continue to focus on maintaining low rates of lost-and-unaccounted-for natural gas through expanded implementation of best practices to limit the release of natural gas during pipeline and facility maintenance and operations. Additionally, in March 2016, we were one of 40 founding partners to launch the EPA&#8217;s Natural Gas STAR Methane Challenge Program, whereby oil and natural gas companies agree to promote and track commitments to reduce methane emissions beyond what is federally required. Our Methane Challenge Program commitment to annually replace or rehabilitate at least two percent of our combined inventory of cast iron and noncathodically-protected steel pipe aligns with our planned system integrity expenditures for infrastructure replacements.  We anticipate reporting in 2018 our calendar year 2017 performance relative to our commitment.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Additional information about our environmental matters is included in the section entitled &#8220;Environmental Matters&#8221; in Note 9 of the Notes to the Financial Statements in this Quarterly Report. </font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Regulatory&#160;-</font><font style="font-family:inherit;font-size:10pt;">&#32;Several regulatory initiatives impacted the earnings and future earnings potential of our business.  See additional information regarding our regulatory initiatives in Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s8BD866A5D65B2E0B1746D2B850D8BF9E"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">IMPACT OF NEW ACCOUNTING STANDARDS</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Information about the impact of new accounting standards, if any, is included in Note 1 of the Notes to the Financial Statements  in this Quarterly Report.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s10E06F68FB468496A1E9D2B8510A947B"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ESTIMATES AND CRITICAL ACCOUNTING POLICIES</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Although we believe these estimates and assumptions are reasonable, actual results could differ from our estimates. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Information about our estimates and critical accounting policies is included under Item 7, Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations, &#8220;Estimates and Critical Accounting Policies,&#8221; in our Annual Report.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sBEBF6799105C3B10C699D2B8512D4FD7"></a></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">FORWARD-LOOKING STATEMENTS</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Some of the statements contained and incorporated in this Quarterly Report are forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act.&#160;&#160;The forward-looking statements relate to our anticipated financial performance, liquidity, management&#8217;s plans and objectives for our future operations, our business prospects, the outcome of regulatory and legal proceedings, market conditions and other matters.&#160;&#160;We make these forward-looking statements in reliance on the safe harbor protections provided under the Private Securities Litigation Reform Act of 1995.&#160;&#160;The following discussion is intended to identify important factors that could cause future outcomes to differ materially from those set forth in the forward-looking statements.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Forward-looking statements include the items identified in the preceding paragraph, the information concerning possible or assumed future results of our operations and other statements contained or incorporated in this Quarterly Report identified by words such as &#8220;anticipate,&#8221; &#8220;estimate,&#8221; &#8220;expect,&#8221; &#8220;project,&#8221; &#8220;intend,&#8221; &#8220;plan,&#8221; &#8220;believe,&#8221; &#8220;should,&#8221; &#8220;goal,&#8221; &#8220;forecast,&#8221; &#8220;guidance,&#8221; &#8220;could,&#8221; &#8220;may,&#8221; &#8220;continue,&#8221; &#8220;might,&#8221; &#8220;potential,&#8221; &#8220;scheduled,&#8221; and other words and terms of similar meaning. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">One should not place undue reliance on forward-looking statements, which are applicable only as of the date of this Quarterly Report.&#160;&#160;Known and unknown risks, uncertainties and other factors may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by forward-looking statements.&#160;&#160;Those factors may affect our operations, markets, products, services and prices.&#160;&#160;In addition to any assumptions and other factors referred to specifically in connection with the forward-looking statements, factors that could cause our actual results to differ materially from those contemplated in any forward-looking statement include, among others, the following:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to recover operating costs and amounts equivalent to income taxes, costs of property, plant and equipment and regulatory assets in our regulated rates;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to manage our operations and maintenance costs;</font></div></td></tr></table><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">30</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in regulation of natural gas distribution services, particularly those in Oklahoma, Kansas and Texas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the economic climate and, particularly, its effect on the natural gas requirements of our residential and</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">commercial industrial customers;</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">competition from alternative forms of energy, including, but not limited to, electricity, solar power, wind power, geothermal energy and biofuels;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">conservation efforts of our customers;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">variations in weather, including seasonal effects on demand, the occurrence of storms and disasters, and climate change;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">indebtedness could make us more vulnerable to general adverse economic and industry conditions, limit our ability to borrow additional funds and/or place us at competitive disadvantage compared with competitors;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to secure reliable, competitively priced and flexible natural gas transportation and supply, including decisions by natural gas producers to reduce production or shut-in producing natural gas wells and expiration of existing supply, and transportation and storage arrangements that are not replaced with contracts with similar terms and pricing;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the mechanical integrity of facilities operated;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">operational hazards and unforeseen operational interruptions;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">adverse labor relations;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the effectiveness of our strategies to reduce earnings lag, margin protection strategies and risk mitigation strategies;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to generate sufficient cash flows to meet all our cash needs;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in the financial markets during the periods covered by the forward-looking statements, particularly those affecting the availability of capital and our ability to refinance existing debt and fund investments and acquisitions;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">actions of rating agencies, including the ratings of debt, general corporate ratings and changes in the rating agencies&#8217; ratings criteria;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in inflation and interest rates;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to recover the costs of natural gas purchased for our customers;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">impact of potential impairment charges;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">volatility and changes in markets for natural gas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">possible loss of LDC franchises or other adverse effects caused by the actions of municipalities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">payment and performance by counterparties and customers as contracted and when due;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in existing or the addition of new environmental, safety, tax and other laws, rules and regulations to which we and our subsidiaries are subject;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the uncertainty of estimates, including accruals and costs of environmental remediation;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">advances in technology;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">population growth rates and changes in the demographic patterns of the markets we serve; </font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">acts of nature and the potential effects of threatened or actual terrorism, including war;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">cyber attacks or breaches of technology systems or information, affecting us, our customers or vendors;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the sufficiency of insurance coverage to cover losses;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the effects of our strategies to reduce tax payments;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the outcomes, timing and effects of litigation and regulatory investigations, proceedings, including our rate cases, or inquiries;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in accounting standards;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">changes in corporate governance standards;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">discovery of material weaknesses in our internal controls;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to comply with all covenants in our indentures and the ONE Gas Credit Agreement, a violation of which, if not cured in a timely manner, could trigger a default of our obligations;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">our ability to attract and retain talented employees, management and directors;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">declines in the discount rates on, declines in the market value of the debt and equity securities of, and increases in funding requirements for, our defined benefit plans;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the ability to successfully complete merger, acquisition or divestiture plans, regulatory or other limitations imposed as a result of a merger, acquisition or divestiture, and the success of the business following a merger, acquisition or divestiture;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the final resolutions or outcomes with respect to our contingent and other corporate liabilities related to the natural gas distribution business and any related actions for indemnification made pursuant to the Separation and Distribution Agreement with ONEOK; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">the costs associated with increased regulation and enhanced disclosure and corporate governance requirements pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010.</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in any of our forward-looking statements.&#160;&#160;Other factors could also have material adverse effects on our future </font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">31</font></div></div><hr style="page-break-after:always"><div></div><div><br></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">results.&#160;&#160;These and other risks are described in greater detail in Item 1A, Risk Factors, in our Annual Report.&#160;&#160;All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by these factors.  Other than as required under securities laws, we undertake no obligation to update publicly any forward-looking statement whether as a result of new information, subsequent events or change in circumstances, expectations or otherwise.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="sC40C2441087F7F157F5FD2B8515F5279"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 3.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our quantitative and qualitative disclosures about market risk are consistent with those discussed in Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, in our Annual Report.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Commodity Price Risk </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our commodity price risk, driven primarily by fluctuations in the price of natural gas, is mitigated by our purchased-gas cost adjustment mechanisms.  Additionally, we inject natural gas into storage during the summer months and withdraw the natural gas during the winter heating season.  Pursuant to programs that are approved by the state commissions, we use derivative instruments to mitigate the volatility of natural gas prices for anticipated natural gas purchases during the winter heating months.  Premiums paid and any cash settlements received associated with these derivative instruments are included in, and recoverable through our purchased-gas cost adjustment mechanisms. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Interest-Rate Risk </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We would be exposed to interest-rate risk with any new debt financing.  We are able to manage interest-rate risk through the use of fixed-rate debt, floating-rate debt and, at times, interest-rate swaps.  Fixed-rate swaps may be used to reduce our risk of increased interest costs during periods of rising interest rates.  Floating-rate swaps may be used to convert the fixed rates of long-term borrowings into short-term variable rates. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Counterparty Credit Risk </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We assess the creditworthiness of our customers.  Those customers who do not meet minimum standards are required to provide security, including deposits and other forms of collateral, when appropriate.  With more than 2 million customers across three states, we are not exposed materially to a concentration of credit risk.  We maintain a provision for doubtful accounts based upon factors surrounding the credit risk of customers, historical trends, consideration of the current credit environment and other information.  In Oklahoma, Kansas and most jurisdictions we serve in Texas, we are able to recover the natural gas cost component of our uncollectible accounts through our purchased-gas cost adjustment mechanisms. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s30A4A89AC86E213DF2D1D2B8518090F3"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 4.</font><font style="font-family:inherit;font-size:10pt;"></font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CONTROLS AND PROCEDURES</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Quarterly Evaluation of Disclosure Controls and Procedures</font><font style="font-family:inherit;font-size:10pt;">&#32;- Our Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer) have concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report based on the evaluation of the controls and procedures required by Rules 13(a)-15(b) of the Exchange Act.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Changes in Internal Control Over Financial Reporting</font><font style="font-family:inherit;font-size:10pt;">&#32;- There have been no changes in our internal control over financial reporting during the three months ended March 31, 2017, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">32</font></div></div><hr style="page-break-after:always"><div><a name="sBE972F0A9D486DA52E53D2B851B10759"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">PART II - OTHER INFORMATION</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s8AA45490CA42EB45B452D2B851D2E741"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 1.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">LEGAL PROCEEDINGS</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We are a party to various litigation matters and claims that have arisen in the normal course of our operations.  While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material.  Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our results of operations, financial position or cash flows. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s67B95C99297F3A45B836D2B852057DCD"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 1A.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">RISK FACTORS</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our investors should consider the risks set forth in Part I, Item 1A, Risk Factors, of our Annual Report that could affect us and our business.&#160;&#160;Although we have tried to discuss key factors, our investors need to be aware that other risks may prove to be important in the future.&#160;&#160;New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial performance.&#160;&#160;Investors should carefully consider the discussion of risks and the other information included or incorporated by reference in this Quarterly Report, including &#8220;Forward-Looking Statements,&#8221; which are included in Part I, Item 2, Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s6FE33AFECCF407306F9BD2B8495B0B70"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 2.</font><font style="font-family:inherit;font-size:10pt;"></font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth information relating to our purchases of our common stock for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:94.921875%;border-collapse:collapse;text-align:left;"><tr><td colspan="12"></td></tr><tr><td style="width:18%;"></td><td style="width:3%;"></td><td style="width:14%;"></td><td style="width:3%;"></td><td style="width:14%;"></td><td style="width:3%;"></td><td style="width:13%;"></td><td style="width:1%;"></td><td style="width:3%;"></td><td style="width:3%;"></td><td style="width:21%;"></td><td style="width:4%;"></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Period</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Total Number of Shares Purchased</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Average Price Paid per Share</font></div></td><td colspan="4" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Total Number of Shares Purchased as</font></div><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Part of Publicly Announced Plans or Programs</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Maximum Number (or Approximate Dollar Value) of Shares (or</font></div><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Units) that May Yet Be Purchased Under the Plans or Programs</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">January 1 - 30, 2017</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">February 1 - 28, 2017</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#8212;</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">March 1 - 31, 2017</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">37,000</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$66.74</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">37,000</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">37,000</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$66.74</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">37,000</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">$21,926,639</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(a)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td colspan="12" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(a) - In February 2015, our Board of Directors established an annual limit of $20 million of treasury stock purchases, plus funds received through the dividend reinvestment, direct stock purchase and employee stock purchase plans.  Stock purchases may be made in the open market or in private transactions at times and in amounts that we deem appropriate.  There is no guarantee as to the exact number of shares that we may purchase, and we can terminate or limit the program at any time.</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s516BA3F86187765F8334D2B85258F8D7"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 3.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">DEFAULTS UPON SENIOR SECURITIES</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Not applicable.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s1FF58176CABBE12EEE4CD2B852794E05"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 4.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">MINE SAFETY DISCLOSURES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Not applicable.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><a name="s9AEBBBBA54FB2FB0452DD2B852ABBF04"></a></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 5.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">OTHER INFORMATION</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On February 21, 2017, our Board of Directors amended our Deferred Compensation Plan for Non-Employee Directors to reflect that interest for cash payments deferred under the plan would be calculated with reference to Moody&#8217;s Bond Indices Corporate AAA Index because of the discontinuation of Moody&#8217;s AAA-30-Year Bond Index.  The description of our Deferred Compensation Plan for Non-Employee Directors, as amended to date, is qualified in its entirety by reference to the full text of such plan, which is attached hereto or incorporated by reference as Exhibit 10.3.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">33</font></div></div><hr style="page-break-after:always"><div><a name="s191832511C21CAFDF32FD2B852CCF0C7"></a></div><div></div><div><br></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:96px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ITEM 6.</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EXHIBITS</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Readers of this report should not rely on or assume the accuracy of any representation or warranty or the validity of any opinion contained in any agreement filed as an exhibit to this Quarterly Report, because such representation, warranty or opinion may be subject to exceptions and qualifications contained in separate disclosure schedules, may represent an allocation of risk between parties in the particular transaction, may be qualified by materiality standards that differ from what may be viewed as material for securities law purposes, or may no longer continue to be true as of any given date.&#160;&#160;All exhibits attached to this Quarterly Report are included for the purpose of complying with requirements of the SEC.&#160;&#160;Other than the certifications made by our officers pursuant to the Sarbanes-Oxley Act of 2002 included as exhibits to this Quarterly Report, all exhibits are included only to provide information to investors regarding their respective terms&#160;and should not be relied upon as constituting or providing any factual disclosures about us, any other persons, any state of affairs or other matters.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following exhibits are filed as part of this Quarterly Report:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:1%;"></td><td style="width:12%;"></td><td style="width:87%;"></td></tr><tr><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Exhibit No.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Exhibit Description</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:9px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">10.1</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Form of 2017 Restricted Unit Award Agreement (incorporated by reference to Exhibit 10.15 to ONE Gas, Inc.&#8217;s Annual Report on Form 10-K filed on February 23, 2017 (File No. 1-36108)).</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">10.2</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Form of 2017 Performance Unit Award Agreement (incorporated by reference to Exhibit 10.16 to ONE Gas, Inc.&#8217;s Annual Report on Form 10-K filed on February 23, 2017 (File No. 1-36108)).</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">10.3</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas, Inc. Deferred Compensation Plan for Non-Employee Directors (incorporated by reference to Exhibit 10.19 to ONE Gas, Inc.&#8217;s Annual Report on Form 10-K filed on February 23, 2017 (File No. 1-36108)).</font></div><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">31.1</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certification of Pierce H. Norton II pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">31.2</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certification of Curtis L. Dinan pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">32.1</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certification of Pierce H. Norton II pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished only pursuant to Rule 13a-14(b)).</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">32.2</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Certification of Curtis L. Dinan pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished only pursuant to Rule 13a-14(b)). </font></div></td></tr></table></div></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:1%;"></td><td style="width:12%;"></td><td style="width:87%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101.INS</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Instance Document.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101.SCH</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Schema Document.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101.CAL</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Calculation Linkbase Document.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101.LAB</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Label Linkbase Document.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101. PRE</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Presentation Linkbase Document.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:14px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">101.DEF</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">XBRL Extension Definition Linkbase Document.</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Attached as Exhibit 101 to this Quarterly Report are the following XBRL-related documents: (i) Document and Entity Information; (ii) Statements of Income for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">; (iii) Statements of Comprehensive Income for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">; (iv) Balance Sheets at </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">; (v) Statements of Cash Flows for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">&#32;and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">; (vi) Statement of Equity for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;">&#32;months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">; and (vii) Notes to the Financial Statements.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We also make available on our website the Interactive Data Files submitted as Exhibit 101 to this Quarterly Report.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">34</font></div></div><hr style="page-break-after:always"><div><a name="sF6952445D2192D4A4326D2B852FFB1C2"></a></div><div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">SIGNATURE</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="3"></td></tr><tr><td style="width:52%;"></td><td style="width:4%;"></td><td style="width:44%;"></td></tr><tr><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Date: May 2, 2017</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">ONE Gas, Inc.</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Registrant</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;height:20px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">By:</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">/s/ Curtis L. Dinan</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Curtis L. Dinan</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Senior Vice President,</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Chief Financial Officer and Treasurer</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:middle;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(Principal Financial Officer)</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div style="text-align:center;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">35</font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>ogsexhibit3111q10-q2017.htm
<DESCRIPTION>NORTON CERTIFICATION SECTION 302
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2017 Workiva -->
		<title>Exhibit</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="s4793D43B13BE3E32FFDDD2B8560FD9F6"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Exhibit 31.1</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Certification</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">I, Pierce H. Norton II, certify that:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">I have reviewed this quarterly report on Form 10-Q of ONE Gas, Inc.;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">a)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">b)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">c)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">d)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Disclosed in this report any change in the registrant&#8217;s internal control over financial reporting that occurred during the registrant&#8217;s most recent fiscal quarter (the registrant&#8217;s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#8217;s internal control over financial reporting; and</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The registrant&#8217;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&#8217;s auditors and the audit committee of the registrant&#8217;s board of directors:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">a)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#8217;s ability to record, process, summarize and report financial information; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">b)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Date:  May 2, 2017</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:50%;"></td><td style="width:50%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">/s/ Pierce H. Norton II</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Pierce H. Norton II</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Chief Executive Officer</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>ogsexhibit3121q10-q2017.htm
<DESCRIPTION>DINAN CERTIFICATION SECTION 302
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2017 Workiva -->
		<title>Exhibit</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="s170AE356D4D706AF5708D2B856B496C1"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Exhibit 31.2</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Certification</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">I, Curtis L. Dinan, certify that:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">I have reviewed this quarterly report on Form 10-Q of ONE Gas, Inc.;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The registrant&#8217;s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">a)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">b)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">c)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Evaluated the effectiveness of the registrant&#8217;s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">d)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Disclosed in this report any change in the registrant&#8217;s internal control over financial reporting that occurred during the registrant&#8217;s most recent fiscal quarter (the registrant&#8217;s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant&#8217;s internal control over financial reporting; and</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The registrant&#8217;s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant&#8217;s auditors and the audit committee of the registrant&#8217;s board of directors:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">a)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant&#8217;s ability to record, process, summarize and report financial information; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">b)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant&#8217;s internal control over financial reporting.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Date:  May 2, 2017</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:50%;"></td><td style="width:50%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">/s/ Curtis L. Dinan</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Curtis L. Dinan</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Chief Financial Officer</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>4
<FILENAME>ogsexhibit3211q10-q2017.htm
<DESCRIPTION>NORTON CERTIFICATION SECTION 906
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2017 Workiva -->
		<title>Exhibit</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="s38F69CECFEE654F02C8FD2B8576036A3"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Exhibit 32.1</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">CERTIFICATION PURSUANT TO</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">18 U.S.C. SECTION 1350,</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">AS ADOPTED PURSUANT TO</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">In connection with the Quarterly Report on Form 10-Q of ONE Gas, Inc. (the &#8220;Registrant&#8221;) for the period ending March 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the &#8220;Report&#8221;), I, Pierce H. Norton II, Chief Executive Officer of the Registrant, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="padding-bottom:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:36px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;">(1)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:36px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;">(2)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;text-decoration:underline;">/s/ Pierce H. Norton II</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Pierce H. Norton II</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Chief Executive Officer</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">May 2, 2017</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to ONE Gas, Inc. and will be retained by ONE Gas, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.2
<SEQUENCE>5
<FILENAME>ogsexhibit3221q10-q2017.htm
<DESCRIPTION>DINAN CERTIFICATION SECTION 906
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
	<head>
		<!-- Document created using Wdesk 1 -->
		<!-- Copyright 2017 Workiva -->
		<title>Exhibit</title>
	</head>
	<body style="font-family:Times New Roman;font-size:10pt;">
<div><a name="sD1035366D4C6890F99BCD2B85803C151"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Exhibit 32.2</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">CERTIFICATION PURSUANT TO</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">18 U.S.C. SECTION 1350,</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">AS ADOPTED PURSUANT TO</font></div><div style="line-height:120%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">In connection with the Quarterly Report on Form 10-Q of ONE Gas, Inc. (the &#8220;Registrant&#8221;) for the period ending March 31, 2017, as filed with the Securities and Exchange Commission on the date hereof (the &#8220;Report&#8221;), I, Curtis L. Dinan, Chief Financial Officer of the Registrant, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><table cellpadding="0" cellspacing="0" style="padding-bottom:8px;font-family:Times New Roman; font-size:10pt;"><tr><td style="width:36px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;">(1)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:36px;"></td><td></td></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:11pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;">(2)</font></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;text-decoration:underline;">/s/ Curtis L. Dinan</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Curtis L. Dinan</font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Chief Financial Officer</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">May 2, 2017</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">A signed original of this written statement required by Section 906, or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to ONE Gas, Inc. and will be retained by ONE Gas, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.INS
<SEQUENCE>6
<FILENAME>ogs-20170331.xml
<DESCRIPTION>XBRL INSTANCE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!--p:7f20287290e1465b9a4e8b0d0794bd6d,x:fe1a8bb8901841549fe5ac0a22dab248-->
<xbrli:xbrl xmlns:country="http://xbrl.sec.gov/country/2013-01-31" xmlns:currency="http://xbrl.sec.gov/currency/2014-01-31" xmlns:dei="http://xbrl.sec.gov/dei/2014-01-31" xmlns:exch="http://xbrl.sec.gov/exch/2015-01-31" xmlns:invest="http://xbrl.sec.gov/invest/2013-01-31" xmlns:iso4217="http://www.xbrl.org/2003/iso4217" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:naics="http://xbrl.sec.gov/naics/2011-01-31" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:ogs="http://www.onegas.com/20170331" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:sic="http://xbrl.sec.gov/sic/2011-01-31" xmlns:stpr="http://xbrl.sec.gov/stpr/2011-01-31" xmlns:us-gaap="http://fasb.org/us-gaap/2015-01-31" xmlns:us-roles="http://fasb.org/us-roles/2015-01-31" xmlns:us-types="http://fasb.org/us-types/2015-01-31" xmlns:utreg="http://www.xbrl.org/2009/utr" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<link:schemaRef xlink:href="ogs-20170331.xsd" xlink:type="simple" />
	<xbrli:context id="FD2017Q1YTD">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="I2016Q1SharesOutstanding">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-04-25</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2016Q1YTD">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2016-01-01</xbrli:startDate>
			<xbrli:endDate>2016-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2016Q4YTD">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2016-01-01</xbrli:startDate>
			<xbrli:endDate>2016-12-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q1">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2015Q4">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2015-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AdditionalPaidInCapitalMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:TreasuryStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:TreasuryStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:TreasuryStockMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:RetainedEarningsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:StatementEquityComponentsAxis">us-gaap:AccumulatedOtherComprehensiveIncomeMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:TotalregulatoryassetsnetofamortizationMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:TotalregulatedliabilitiesMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:AdvaloremtaxMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:OverrecoveredpurchasedgascostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:OtherregulatoryassetsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">us-gaap:PensionCostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:WeathernormalizationMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">us-gaap:LossOnReacquiredDebtMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:UnderrecoveredpurchasedgascostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:WeathernormalizationMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:TotalregulatedliabilitiesMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">us-gaap:PensionCostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:AdvaloremtaxMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryLiabilityAxis">ogs:OverrecoveredpurchasedgascostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:TotalregulatoryassetsnetofamortizationMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:OtherregulatoryassetsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">us-gaap:LossOnReacquiredDebtMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:RegulatoryAssetAxis">ogs:UnderrecoveredpurchasedgascostsMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2019Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotePayableDue2019Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2024Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotePayableDue2024Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotesPayableDue2044Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotesPayableDue2044Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2024Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotePayableDue2024Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotesPayableDue2044Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotesPayableDue2044Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2019Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:LongtermDebtTypeAxis">ogs:NotePayableDue2019Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q2QTD_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:SubsequentEventTypeAxis">us-gaap:SubsequentEventMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-04-01</xbrli:startDate>
			<xbrli:endDate>2017-06-30</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis">us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2016-01-01</xbrli:startDate>
			<xbrli:endDate>2016-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis">us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis">us-gaap:PensionPlansDefinedBenefitMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2016-01-01</xbrli:startDate>
			<xbrli:endDate>2016-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis">us-gaap:PensionPlansDefinedBenefitMember</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:startDate>2017-01-01</xbrli:startDate>
			<xbrli:endDate>2017-03-31</xbrli:endDate>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2017Q1_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel2Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2017-03-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel1Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel1Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:context id="FI2016Q4_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel2Member">
		<xbrli:entity>
			<xbrli:identifier scheme="http://www.sec.gov/CIK">0001587732</xbrli:identifier>
			<xbrli:segment>
				<xbrldi:explicitMember dimension="us-gaap:FairValueByFairValueHierarchyLevelAxis">us-gaap:FairValueInputsLevel2Member</xbrldi:explicitMember>
			</xbrli:segment>
		</xbrli:entity>
		<xbrli:period>
			<xbrli:instant>2016-12-31</xbrli:instant>
		</xbrli:period>
	</xbrli:context>
	<xbrli:unit id="shares">
		<xbrli:measure>xbrli:shares</xbrli:measure>
	</xbrli:unit>
	<xbrli:unit id="usd">
		<xbrli:measure>iso4217:USD</xbrli:measure>
	</xbrli:unit>
	<xbrli:unit id="mmcf">
		<xbrli:measure>utreg:MMcf</xbrli:measure>
	</xbrli:unit>
	<xbrli:unit id="number">
		<xbrli:measure>xbrli:pure</xbrli:measure>
	</xbrli:unit>
	<xbrli:unit id="usdPerShare">
		<xbrli:divide>
			<xbrli:unitNumerator>
				<xbrli:measure>iso4217:USD</xbrli:measure>
			</xbrli:unitNumerator>
			<xbrli:unitDenominator>
				<xbrli:measure>xbrli:shares</xbrli:measure>
			</xbrli:unitDenominator>
		</xbrli:divide>
	</xbrli:unit>
	<dei:AmendmentFlag contextRef="FD2017Q1YTD" id="Fact-D55AC00744BBB92B7CF3D2B8459D1936">false</dei:AmendmentFlag>
	<dei:CurrentFiscalYearEndDate contextRef="FD2017Q1YTD" id="Fact-D1C93E7386F27A457C94A662D0157FC5">--12-31</dei:CurrentFiscalYearEndDate>
	<dei:DocumentFiscalPeriodFocus contextRef="FD2017Q1YTD" id="Fact-8FC79261D176ED1BF525D2B845A77A9E">Q1</dei:DocumentFiscalPeriodFocus>
	<dei:DocumentFiscalYearFocus contextRef="FD2017Q1YTD" id="Fact-FD0D24FA091002E721D9A662D01ABB06">2017</dei:DocumentFiscalYearFocus>
	<dei:DocumentPeriodEndDate contextRef="FD2017Q1YTD" id="Fact-A79559ED23CEA9ABC459D2B845A11BDB">2017-03-31</dei:DocumentPeriodEndDate>
	<dei:DocumentType contextRef="FD2017Q1YTD" id="Fact-6F95E89DF1218831ED81D2B845A24A49">10-Q</dei:DocumentType>
	<dei:EntityCentralIndexKey contextRef="FD2017Q1YTD" id="Fact-AE1053892FAF694A718FD2B84526AD65">0001587732</dei:EntityCentralIndexKey>
	<dei:EntityCommonStockSharesOutstanding contextRef="I2016Q1SharesOutstanding" decimals="0" id="Fact-04C81A83420ED479D8A0D2B84593C5E6" unitRef="shares">52435350</dei:EntityCommonStockSharesOutstanding>
	<dei:EntityCurrentReportingStatus contextRef="FD2017Q1YTD" id="Fact-8507CD9F4BCA4098D84AD2B8452AE262">Yes</dei:EntityCurrentReportingStatus>
	<dei:EntityFilerCategory contextRef="FD2017Q1YTD" id="Fact-CFB03D7059D077C4D6FBD2B845A5BA27">Large Accelerated Filer</dei:EntityFilerCategory>
	<dei:EntityRegistrantName contextRef="FD2017Q1YTD" id="Fact-06818168F1F738CC7F45D2B8453DB9EC">ONE Gas, Inc.
</dei:EntityRegistrantName>
	<dei:EntityVoluntaryFilers contextRef="FD2017Q1YTD" id="Fact-1961D527E184D14105E4D2B84538F2C0">No</dei:EntityVoluntaryFilers>
	<dei:EntityWellKnownSeasonedIssuer contextRef="FD2017Q1YTD" id="Fact-87BF78F8F34413A0DF1DD2B84528062A">Yes</dei:EntityWellKnownSeasonedIssuer>
	<invest:DerivativeNonmonetaryNotionalAmount contextRef="FI2016Q4" decimals="-2" id="Fact-09F8B61FBA3F049D2560D2B8459B98E1" unitRef="mmcf">14300</invest:DerivativeNonmonetaryNotionalAmount>
	<invest:DerivativeNonmonetaryNotionalAmount contextRef="FI2017Q1" decimals="-2" id="Fact-FEDD658B0E7F63CC6EE5D2B8459FE438" unitRef="mmcf">0</invest:DerivativeNonmonetaryNotionalAmount>
	<ogs:Commercialpapermaximumborrowingcapacity contextRef="FD2017Q1YTD" decimals="-6" id="Fact-058DFA724DBB8BDEC329D2B845342BEC" unitRef="usd">700000000</ogs:Commercialpapermaximumborrowingcapacity>
	<ogs:CommonStockDividendsDeclaredAnnualizedBasis contextRef="FD2017Q2QTD_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember" decimals="2" id="Fact-9A0549D5DC26489A03E0D2B845A02A85" unitRef="usdPerShare">1.68</ogs:CommonStockDividendsDeclaredAnnualizedBasis>
	<ogs:EnvironmentalReserveEstimateActual contextRef="FD2017Q1YTD" id="Fact-AE4555648873DA09F78F385AE7850B4C">4</ogs:EnvironmentalReserveEstimateActual>
	<ogs:EnvironmentalReserveEstimateRangeHigh contextRef="FD2017Q1YTD" id="Fact-12971F98DF9C30D1B584385A146B0774">7</ogs:EnvironmentalReserveEstimateRangeHigh>
	<ogs:EnvironmentalReserveEstimateRangeLow contextRef="FD2017Q1YTD" id="Fact-04C3E10488EB0D884517385984D34F8E">4</ogs:EnvironmentalReserveEstimateRangeLow>
	<ogs:FairValueAssetsTransfersbetweenLevels contextRef="FD2016Q1YTD" decimals="-5" id="Fact-9064CCE9FBD12BFF6692D2B845A7CA9B" unitRef="usd">0</ogs:FairValueAssetsTransfersbetweenLevels>
	<ogs:FairValueAssetsTransfersbetweenLevels contextRef="FD2016Q1YTD" decimals="0" id="Fact-96F21AAB5BAA7C526EDFD2B845A6FD00" unitRef="usd">0</ogs:FairValueAssetsTransfersbetweenLevels>
	<ogs:FairValueAssetsTransfersbetweenLevels contextRef="FD2017Q1YTD" decimals="0" id="Fact-390DA18E54E180A8F4BED2B845A0EEA2" unitRef="usd">0</ogs:FairValueAssetsTransfersbetweenLevels>
	<ogs:Fairvaluenaturalgascalloptions contextRef="FI2016Q4_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel1Member" decimals="-5" id="Fact-8D80D6AA61ED1221EF76D2B8459C9A3A" unitRef="usd">6500000</ogs:Fairvaluenaturalgascalloptions>
	<ogs:Netregulatoryassetsandliabilitiescurrent contextRef="FI2016Q4" decimals="-3" id="Fact-2644BEBEA022C7D7AE68D2B8458D3D19" unitRef="usd">71224000</ogs:Netregulatoryassetsandliabilitiescurrent>
	<ogs:Netregulatoryassetsandliabilitiescurrent contextRef="FI2017Q1" decimals="-3" id="Fact-B292970D1168C911DC30D2B845AF3BDF" unitRef="usd">60656000</ogs:Netregulatoryassetsandliabilitiescurrent>
	<ogs:Netregulatoryassetsandliabilitiesnoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-2B42AF492124FA8490E6D2B8452C1072" unitRef="usd">440522000</ogs:Netregulatoryassetsandliabilitiesnoncurrent>
	<ogs:Netregulatoryassetsandliabilitiesnoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-0B3D7E557F8C17EA43C9D2B8453083EE" unitRef="usd">430338000</ogs:Netregulatoryassetsandliabilitiesnoncurrent>
	<ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions contextRef="FI2017Q1" decimals="0" id="Fact-9AAA6768D49C84B2693FB0EB693258D8" unitRef="number">12</ogs:NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions>
	<ogs:NumberOfNaturalGasDistributionServicesCustomers contextRef="FI2017Q1" decimals="-6" id="Fact-F29BFCF052398DCAC4F2D2B8452B2468" unitRef="number">2000000</ogs:NumberOfNaturalGasDistributionServicesCustomers>
	<ogs:NumberOfSitesSoilRemediationIsCompletedOrNearCompletion contextRef="FI2017Q1" decimals="0" id="Fact-03FFCCC74342A2A50D9AB0EB691FC0F0" unitRef="number">11</ogs:NumberOfSitesSoilRemediationIsCompletedOrNearCompletion>
	<ogs:NumberOfSitesWhereRegulatoryClosureHasBeenAchieved contextRef="FI2017Q1" decimals="0" id="Fact-818127C82A4179E4A3CCB0EB6927E911" unitRef="number">3</ogs:NumberOfSitesWhereRegulatoryClosureHasBeenAchieved>
	<ogs:Numberofsiteswithongoinggroundwatermonitoring contextRef="FI2017Q1" decimals="0" id="Fact-F98A1D78603244D225AF4D1BD5525FA9" unitRef="number">8</ogs:Numberofsiteswithongoinggroundwatermonitoring>
	<ogs:OperatingLossCarryforwardsTaxBenefit contextRef="FD2017Q1YTD" decimals="-5" id="Fact-9717976CBBD8DC69B14CAAF6E5ECAD27" unitRef="usd">11000000</ogs:OperatingLossCarryforwardsTaxBenefit>
	<ogs:OthercomprehensiveincomelossreclassificationRegulatoryadjustments contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BEFC458AADF4547AB18AD2B845A832D7" unitRef="usd">8941000</ogs:OthercomprehensiveincomelossreclassificationRegulatoryadjustments>
	<ogs:OthercomprehensiveincomelossreclassificationRegulatoryadjustments contextRef="FD2017Q1YTD" decimals="-3" id="Fact-AC1CBC291EFD3A91BEFED2B845AA3A9A" unitRef="usd">9290000</ogs:OthercomprehensiveincomelossreclassificationRegulatoryadjustments>
	<ogs:Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments contextRef="FD2016Q1YTD" decimals="-3" id="Fact-2D20FDCFA02F99545062D2B845AA45A4" unitRef="usd">-9129000</ogs:Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments>
	<ogs:Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments contextRef="FD2017Q1YTD" decimals="-3" id="Fact-50A09B2DABA532A0B97FD2B845ADD478" unitRef="usd">-9499000</ogs:Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments>
	<ogs:Percentageyieldofhighconsequencepipelineareas contextRef="FI2017Q1" decimals="2" id="Fact-448557BE5B54CFCE9E5FB0EB69309B18" unitRef="number">0.30</ogs:Percentageyieldofhighconsequencepipelineareas>
	<ogs:Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld contextRef="FI2016Q4" decimals="-5" id="Fact-FC3A4AC73CFE557F4844D2B8459B51AB" unitRef="usd">5400000</ogs:Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld>
	<ogs:TotalDeferredCreditsAndOtherLiabilities contextRef="FI2016Q4" decimals="-3" id="Fact-1CAA96D53D7FF9AF93EBD2B84529D5C1" unitRef="usd">1418132000</ogs:TotalDeferredCreditsAndOtherLiabilities>
	<ogs:TotalDeferredCreditsAndOtherLiabilities contextRef="FI2017Q1" decimals="-3" id="Fact-57179EEED69279AB06EFD2B845249551" unitRef="usd">1444706000</ogs:TotalDeferredCreditsAndOtherLiabilities>
	<ogs:Totalgoodwillandotherassets contextRef="FI2016Q4" decimals="-3" id="Fact-8FE74BC03723FB99EF9DD2B845447E13" unitRef="usd">642248000</ogs:Totalgoodwillandotherassets>
	<ogs:Totalgoodwillandotherassets contextRef="FI2017Q1" decimals="-3" id="Fact-598FD32380D03F1528DED2B8454AD930" unitRef="usd">634854000</ogs:Totalgoodwillandotherassets>
	<us-gaap:AccountsPayableCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-20374766FD4F38522A7FD2B845265523" unitRef="usd">131988000</us-gaap:AccountsPayableCurrent>
	<us-gaap:AccountsPayableCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-B901A42B157719AEFFC3D2B8452D1F04" unitRef="usd">76142000</us-gaap:AccountsPayableCurrent>
	<us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-B2EF3C298E6CA295C6E5D2B8458671C3" unitRef="usd">42571000</us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent>
	<us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-0C232A04B319A2D0FFB8D2B845479C59" unitRef="usd">37431000</us-gaap:AccrualForTaxesOtherThanIncomeTaxesCurrent>
	<us-gaap:AccruedLiabilitiesCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-A3CBF82BBFC1886A534DD2B84585EBDF" unitRef="usd">22931000</us-gaap:AccruedLiabilitiesCurrent>
	<us-gaap:AccruedLiabilitiesCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-FFA449A9FFD0EB1BE7FAD2B84524945F" unitRef="usd">12474000</us-gaap:AccruedLiabilitiesCurrent>
	<us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax contextRef="FI2016Q4" decimals="-3" id="Fact-67F35D98AA861290882AD2B8458E6A29" unitRef="usd">-4715000</us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax contextRef="FI2017Q1" decimals="-3" id="Fact-4B704798537AD550E55AD2B84587CB17" unitRef="usd">-4586000</us-gaap:AccumulatedOtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:AdditionalPaidInCapital contextRef="FI2016Q4" decimals="-3" id="Fact-3445E3F4C87A769C4104D2B8458313E8" unitRef="usd">1749574000</us-gaap:AdditionalPaidInCapital>
	<us-gaap:AdditionalPaidInCapital contextRef="FI2017Q1" decimals="-3" id="Fact-DD10CBAB2EC2E2F246C4D2B845498EE8" unitRef="usd">1732335000</us-gaap:AdditionalPaidInCapital>
	<us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet contextRef="FD2017Q1YTD" decimals="-3" id="Fact-942CF70FC3DF8C16F7D8A6802DDE767B" unitRef="usd">10982000</us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet>
	<us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-D310F2BA5881C64A6E48A6802DDE77FD" unitRef="usd">0</us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet>
	<us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-7F7DA2B138EE622BB6D7A6802DE82460" unitRef="usd">10982000</us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet>
	<us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-B7E8180FBBA6F069E434A6802DDEEC31" unitRef="usd">0</us-gaap:AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet>
	<us-gaap:Assets contextRef="FI2016Q4" decimals="-3" id="Fact-AABAD5FA9EDA3D710335D2B8453B3D82" unitRef="usd">4942791000</us-gaap:Assets>
	<us-gaap:Assets contextRef="FI2017Q1" decimals="-3" id="Fact-DDD474FA84022AE37E12D2B845491DF5" unitRef="usd">4889874000</us-gaap:Assets>
	<us-gaap:AssetsCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-05BD77C5896F601CD4E2D2B84540C2F6" unitRef="usd">568923000</us-gaap:AssetsCurrent>
	<us-gaap:AssetsCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-0F1C9FD9513C10A8426DD2B8454914CD" unitRef="usd">481132000</us-gaap:AssetsCurrent>
	<us-gaap:CapitalizationLongtermDebtAndEquity contextRef="FI2016Q4" decimals="-3" id="Fact-0EBA8465796794C3A5A7D2B8458DC9FE" unitRef="usd">3080726000</us-gaap:CapitalizationLongtermDebtAndEquity>
	<us-gaap:CapitalizationLongtermDebtAndEquity contextRef="FI2017Q1" decimals="-3" id="Fact-ACB3E47740955095CE75D2B8452947E9" unitRef="usd">3137225000</us-gaap:CapitalizationLongtermDebtAndEquity>
	<us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="FI2015Q4" decimals="-3" id="Fact-CE11C8A6BC504D6D9A69D2B845A16159" unitRef="usd">2433000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
	<us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="FI2016Q1" decimals="-3" id="Fact-3BDB4715872467A33073D2B845A4382D" unitRef="usd">52657000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
	<us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="FI2016Q4" decimals="-3" id="Fact-3DAC93A9E49A7A30FA67D2B845826069" unitRef="usd">14663000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
	<us-gaap:CashAndCashEquivalentsAtCarryingValue contextRef="FI2017Q1" decimals="-3" id="Fact-420F9F90B6ED46C1E003D2B84541F532" unitRef="usd">13206000</us-gaap:CashAndCashEquivalentsAtCarryingValue>
	<us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BD9CFE4B6503CC53E8A7D2B845A4E1C3" unitRef="usd">50224000</us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease>
	<us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease contextRef="FD2017Q1YTD" decimals="-3" id="Fact-3215BD7BE73998996EFDD2B84596A9FF" unitRef="usd">-1457000</us-gaap:CashAndCashEquivalentsPeriodIncreaseDecrease>
	<us-gaap:CommercialPaper contextRef="FI2016Q4" decimals="-3" id="Fact-459D0A1D669B5A0602A2D2B8458111AC" unitRef="usd">145000000</us-gaap:CommercialPaper>
	<us-gaap:CommercialPaper contextRef="FI2017Q1" decimals="-3" id="Fact-693E586FD30F7E922617D2B8454AC1AD" unitRef="usd">85400000</us-gaap:CommercialPaper>
	<us-gaap:CommitmentsAndContingencies contextRef="FI2016Q4" id="Fact-95DE621E8F7336C9FEE1D2B845909449" unitRef="usd" xsi:nil="true" />
	<us-gaap:CommitmentsAndContingencies contextRef="FI2017Q1" id="Fact-74F904A9FBB783DA90D2D2B84549D7D4" unitRef="usd" xsi:nil="true" />
	<us-gaap:CommonStockDividendsPerShareCashPaid contextRef="FD2016Q1YTD" decimals="2" id="Fact-0F693F5133D987F8648CD2B845339BA8" unitRef="usdPerShare">0.35</us-gaap:CommonStockDividendsPerShareCashPaid>
	<us-gaap:CommonStockDividendsPerShareCashPaid contextRef="FD2017Q1YTD" decimals="2" id="Fact-FF809F1A38053E4A5A2DD2B84581B490" unitRef="usdPerShare">0.42</us-gaap:CommonStockDividendsPerShareCashPaid>
	<us-gaap:CommonStockDividendsPerShareDeclared contextRef="FD2017Q2QTD_us-gaap_SubsequentEventTypeAxis_us-gaap_SubsequentEventMember" decimals="2" id="Fact-660ED1F381447FFDBC57D2B845A0F545" unitRef="usdPerShare">0.42</us-gaap:CommonStockDividendsPerShareDeclared>
	<us-gaap:CommonStockParOrStatedValuePerShare contextRef="FI2016Q4" decimals="2" id="Fact-0746C9DA688E040267C7D2B8452950DE" unitRef="usdPerShare">0.01</us-gaap:CommonStockParOrStatedValuePerShare>
	<us-gaap:CommonStockParOrStatedValuePerShare contextRef="FI2017Q1" decimals="2" id="Fact-00F8EC57E490A56B6ED9D2B84581311C" unitRef="usdPerShare">0.01</us-gaap:CommonStockParOrStatedValuePerShare>
	<us-gaap:CommonStockSharesAuthorized contextRef="FI2016Q4" decimals="0" id="Fact-E941F4B5A95E7C6F2352D2B845290379" unitRef="shares">250000000</us-gaap:CommonStockSharesAuthorized>
	<us-gaap:CommonStockSharesAuthorized contextRef="FI2017Q1" decimals="0" id="Fact-C7028B9CE03F5823C879D2B84546C28F" unitRef="shares">250000000</us-gaap:CommonStockSharesAuthorized>
	<us-gaap:CommonStockSharesIssued contextRef="FI2016Q4" decimals="0" id="Fact-ED80C1B0681943A49AD9D2B845289622" unitRef="shares">52598005</us-gaap:CommonStockSharesIssued>
	<us-gaap:CommonStockSharesIssued contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="0" id="Fact-2B2C0705F5F1C05D041FD2B845B09192" unitRef="shares">52598005</us-gaap:CommonStockSharesIssued>
	<us-gaap:CommonStockSharesIssued contextRef="FI2017Q1" decimals="0" id="Fact-1053E0EC9B07E7C9C998D2B84586BAB1" unitRef="shares">52598005</us-gaap:CommonStockSharesIssued>
	<us-gaap:CommonStockSharesIssued contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="0" id="Fact-A9EEDC7AE8819DFC9F55D2B8459261A0" unitRef="shares">52598005</us-gaap:CommonStockSharesIssued>
	<us-gaap:CommonStockSharesOutstanding contextRef="FI2016Q4" decimals="0" id="Fact-9D495EF0976C70A57106D2B845299D2D" unitRef="shares">52283260</us-gaap:CommonStockSharesOutstanding>
	<us-gaap:CommonStockSharesOutstanding contextRef="FI2017Q1" decimals="0" id="Fact-70157AF050962979ACF6D2B8452ABA7D" unitRef="shares">52431914</us-gaap:CommonStockSharesOutstanding>
	<us-gaap:CommonStockValue contextRef="FI2016Q4" decimals="-3" id="Fact-D6B4A92F039B2E171E1ED2B8454A2B08" unitRef="usd">526000</us-gaap:CommonStockValue>
	<us-gaap:CommonStockValue contextRef="FI2017Q1" decimals="-3" id="Fact-19E05CD1929ACD5D38BFD2B845255C82" unitRef="usd">526000</us-gaap:CommonStockValue>
	<us-gaap:ComprehensiveIncomeNetOfTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-0D64CEE9F11225932DCED2B845AE14A6" unitRef="usd">64859000</us-gaap:ComprehensiveIncomeNetOfTax>
	<us-gaap:ComprehensiveIncomeNetOfTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-08721244B5799181E3A1D2B845AD7F40" unitRef="usd">76585000</us-gaap:ComprehensiveIncomeNetOfTax>
	<us-gaap:CustomerDepositsCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-F72C8B9306AF620F8A22D2B84591C040" unitRef="usd">61209000</us-gaap:CustomerDepositsCurrent>
	<us-gaap:CustomerDepositsCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-DFD3B441F1C9EC5613D4D2B8452CF94C" unitRef="usd">61945000</us-gaap:CustomerDepositsCurrent>
	<us-gaap:DebtInstrumentCarryingAmount contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2019Member" decimals="-6" id="Fact-2B04ACFC1EE5C3F660FAD2B84526BAD8" unitRef="usd">300000000</us-gaap:DebtInstrumentCarryingAmount>
	<us-gaap:DebtInstrumentCarryingAmount contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2024Member" decimals="-6" id="Fact-3A5D951BDA2D12E02B50D2B84526E12D" unitRef="usd">300000000</us-gaap:DebtInstrumentCarryingAmount>
	<us-gaap:DebtInstrumentCarryingAmount contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotesPayableDue2044Member" decimals="-6" id="Fact-D292B4D8989BE9461D4CD2B84532A8FE" unitRef="usd">600000000</us-gaap:DebtInstrumentCarryingAmount>
	<us-gaap:DebtInstrumentCovenantDescription contextRef="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2019Member" id="Fact-DF4011C4DE4CDA9E8F82D2B8452FA010">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.</us-gaap:DebtInstrumentCovenantDescription>
	<us-gaap:DebtInstrumentCovenantDescription contextRef="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2024Member" id="Fact-9334DAFF20D255457660D2B8458CF078">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.</us-gaap:DebtInstrumentCovenantDescription>
	<us-gaap:DebtInstrumentCovenantDescription contextRef="FD2017Q1YTD_us-gaap_LongtermDebtTypeAxis_ogs_NotesPayableDue2044Member" id="Fact-0296803C1CE167A7F18FD2B84594DEDB">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.</us-gaap:DebtInstrumentCovenantDescription>
	<us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2019Member" decimals="INF" id="Fact-B164EBAEF7CB901A7F73D2B8453333C3" unitRef="number">0.0207</us-gaap:DebtInstrumentInterestRateStatedPercentage>
	<us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotePayableDue2024Member" decimals="INF" id="Fact-0509878C03C006FC5CD6D2B8459D954A" unitRef="number">0.0361</us-gaap:DebtInstrumentInterestRateStatedPercentage>
	<us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="FI2017Q1_us-gaap_LongtermDebtTypeAxis_ogs_NotesPayableDue2044Member" decimals="INF" id="Fact-375EE2FB07BD17C58F92D2B84538E0E5" unitRef="number">0.04658</us-gaap:DebtInstrumentInterestRateStatedPercentage>
	<us-gaap:DebtIssuanceCosts contextRef="FD2016Q4YTD" decimals="-3" id="Fact-0C48FFF274A1ECADBE08D2B84596D12E" unitRef="usd">8851000</us-gaap:DebtIssuanceCosts>
	<us-gaap:DebtIssuanceCosts contextRef="FD2017Q1YTD" decimals="-3" id="Fact-00AEDA39CA3B19473C9AD2B84593A037" unitRef="usd">8648000</us-gaap:DebtIssuanceCosts>
	<us-gaap:DeferredIncomeTaxExpenseBenefit contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BA82AA42C3A7E8C34916D2B84540EC6F" unitRef="usd">16113000</us-gaap:DeferredIncomeTaxExpenseBenefit>
	<us-gaap:DeferredIncomeTaxExpenseBenefit contextRef="FD2017Q1YTD" decimals="-3" id="Fact-D899ACE7EA8540FBE962D2B845938453" unitRef="usd">37461000</us-gaap:DeferredIncomeTaxExpenseBenefit>
	<us-gaap:DeferredTaxLiabilitiesNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-06F583D89E618209D5EBD2B8458FB52D" unitRef="usd">1038568000</us-gaap:DeferredTaxLiabilitiesNoncurrent>
	<us-gaap:DeferredTaxLiabilitiesNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-786D640C95BB3DA34407D2B8452DFF4D" unitRef="usd">1065096000</us-gaap:DeferredTaxLiabilitiesNoncurrent>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2016Q1YTD" decimals="-3" id="Fact-F297BA2A352A6901CAE0D2B845AE77DB" unitRef="usd">-10037000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-FFA6D650356F82F45E7ED2B845434766" unitRef="usd">-1151000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-AF5AEED882F61BEEE5BBD2B84547D653" unitRef="usd">-8886000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2017Q1YTD" decimals="-3" id="Fact-17937D4C43FE2A781B84D2B845A9670D" unitRef="usd">-10648000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-762C7A4B6B6C661EC1B8D2B845864D23" unitRef="usd">-1621000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-6EB930E5E88428ACDE52D2B8453457FB" unitRef="usd">-9027000</us-gaap:DefinedBenefitPlanAmortizationOfGainsLosses>
	<us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="FD2016Q1YTD" decimals="-3" id="Fact-E6F781A02C7C2EF48727D2B845AEA3CF" unitRef="usd">-908000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
	<us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-F8DE935A668E99101056D2B845483232" unitRef="usd">-908000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
	<us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="FD2017Q1YTD" decimals="-3" id="Fact-3AFEC957BF85828E216BD2B845ABFE22" unitRef="usd">-1149000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
	<us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-7B7E1497B993F59FE539D2B84546FB20" unitRef="usd">-1149000</us-gaap:DefinedBenefitPlanAmortizationOfPriorServiceCostCredit>
	<us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-3CDDBFC365487B4B58FCD2B8458EEDB8" unitRef="usd">3071000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
	<us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-34C4932BB232319114EDD2B8453AF483" unitRef="usd">15296000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
	<us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-5296F8E6E46CDBDC2491D2B845460666" unitRef="usd">3147000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
	<us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-95714F0B010331C05CC3D2B845395485" unitRef="usd">14624000</us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets>
	<us-gaap:DefinedBenefitPlanInterestCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-A853726F5D7EDA709F09D2B8458F12F8" unitRef="usd">2627000</us-gaap:DefinedBenefitPlanInterestCost>
	<us-gaap:DefinedBenefitPlanInterestCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-A0FD7273F7FBCAB15E28D2B845432D92" unitRef="usd">11387000</us-gaap:DefinedBenefitPlanInterestCost>
	<us-gaap:DefinedBenefitPlanInterestCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-CFCD0A0754BF428C8203D2B845444F5D" unitRef="usd">2472000</us-gaap:DefinedBenefitPlanInterestCost>
	<us-gaap:DefinedBenefitPlanInterestCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-03F265299DE009DBDF02D2B845877EAC" unitRef="usd">10113000</us-gaap:DefinedBenefitPlanInterestCost>
	<us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-9D332EDA6DDE545D2C18D2B84545EB5F" unitRef="usd">437000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
	<us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-25D2271DC739451A504ED2B8453AB5E5" unitRef="usd">7991000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
	<us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-BB8C0057310CE8FC13A3D2B8454339DD" unitRef="usd">424000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
	<us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-FCD926534659C50DE3A6D2B8453A1B06" unitRef="usd">7560000</us-gaap:DefinedBenefitPlanNetPeriodicBenefitCost>
	<us-gaap:DefinedBenefitPlanServiceCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-22C07F0AF7EE56B9351ED2B845831EDB" unitRef="usd">638000</us-gaap:DefinedBenefitPlanServiceCost>
	<us-gaap:DefinedBenefitPlanServiceCost contextRef="FD2016Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-E9B8C9D0DB7B2DD8DF71D2B84534F2D0" unitRef="usd">3014000</us-gaap:DefinedBenefitPlanServiceCost>
	<us-gaap:DefinedBenefitPlanServiceCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" decimals="-3" id="Fact-2E3B16080E05E50FB899D2B8454A4647" unitRef="usd">627000</us-gaap:DefinedBenefitPlanServiceCost>
	<us-gaap:DefinedBenefitPlanServiceCost contextRef="FD2017Q1YTD_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_us-gaap_PensionPlansDefinedBenefitMember" decimals="-3" id="Fact-C40B3DE6C61BD927B9CBD2B8453A6887" unitRef="usd">3044000</us-gaap:DefinedBenefitPlanServiceCost>
	<us-gaap:DilutiveSecurities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-797C77243C41AA75FABDD2B845B15EDF" unitRef="usd">0</us-gaap:DilutiveSecurities>
	<us-gaap:DilutiveSecurities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-454539631C730E0B0215D2B8453597A7" unitRef="usd">0</us-gaap:DilutiveSecurities>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD" decimals="-3" id="Fact-E491C5544DE0AE0C15DDD2B8459376E5" unitRef="usd">22034000</us-gaap:DividendsCommonStock>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-18644A0D937A20E350BBD2B8459DF296" unitRef="usd">0</us-gaap:DividendsCommonStock>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-BCC1B149CB0BCECA7F0FD2B845AC6A0F" unitRef="usd">-230000</us-gaap:DividendsCommonStock>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-B6DD245F2AD67AD1376DD2B845A74CC9" unitRef="usd">0</us-gaap:DividendsCommonStock>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-E75C29A73F19BA4A9B70D2B8459F848F" unitRef="usd">22264000</us-gaap:DividendsCommonStock>
	<us-gaap:DividendsCommonStock contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-3BB7881585E0A7406B8DD2B84588EAC2" unitRef="usd">0</us-gaap:DividendsCommonStock>
	<us-gaap:EarningsPerShareBasic contextRef="FD2016Q1YTD" decimals="2" id="Fact-C6704E3F3CFAC577AF9DD2B8458CC2A1" unitRef="usdPerShare">1.23</us-gaap:EarningsPerShareBasic>
	<us-gaap:EarningsPerShareBasic contextRef="FD2017Q1YTD" decimals="2" id="Fact-3F7A8470853ED51BBFFAD2B84584DE72" unitRef="usdPerShare">1.45</us-gaap:EarningsPerShareBasic>
	<us-gaap:EarningsPerShareDiluted contextRef="FD2016Q1YTD" decimals="2" id="Fact-A60D1155060038BC97BED2B84547D6EB" unitRef="usdPerShare">1.22</us-gaap:EarningsPerShareDiluted>
	<us-gaap:EarningsPerShareDiluted contextRef="FD2017Q1YTD" decimals="2" id="Fact-7B31B7A64835F4DE87E3D2B8459A302F" unitRef="usdPerShare">1.44</us-gaap:EarningsPerShareDiluted>
	<us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-FC053F024BC7EFF3FBA4A66A82DB0956" unitRef="usd">-8849000</us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities>
	<us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-FAD2637BD8BB418CAE04A66A82F391BF" unitRef="usd">-9180000</us-gaap:ExcessTaxBenefitFromShareBasedCompensationFinancingActivities>
	<us-gaap:Goodwill contextRef="FI2016Q4" decimals="-3" id="Fact-18C2FBA51EF4182D5404D2B8454A42F8" unitRef="usd">157953000</us-gaap:Goodwill>
	<us-gaap:Goodwill contextRef="FI2017Q1" decimals="-3" id="Fact-E0D103D20FD49E344DA0D2B84545D372" unitRef="usd">157953000</us-gaap:Goodwill>
	<us-gaap:GrossProfit contextRef="FD2016Q1YTD" decimals="-3" id="Fact-2499B261C4F314532840D2B845470155" unitRef="usd">272635000</us-gaap:GrossProfit>
	<us-gaap:GrossProfit contextRef="FD2017Q1YTD" decimals="-3" id="Fact-CD4D94B205584CC2D9F5D2B845991E40" unitRef="usd">287254000</us-gaap:GrossProfit>
	<us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest contextRef="FD2016Q1YTD" decimals="-3" id="Fact-5BE52A816A36EC938752D2B8452EDF2A" unitRef="usd">104789000</us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest>
	<us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest contextRef="FD2017Q1YTD" decimals="-3" id="Fact-872E255E071DCBC8D7AFD2B845464C27" unitRef="usd">114557000</us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest>
	<us-gaap:IncomeTaxExpenseBenefit contextRef="FD2016Q1YTD" decimals="-3" id="Fact-08D7B03A01514F7BBD26D2B84590BFBE" unitRef="usd">40046000</us-gaap:IncomeTaxExpenseBenefit>
	<us-gaap:IncomeTaxExpenseBenefit contextRef="FD2017Q1YTD" decimals="-3" id="Fact-8C7B1090E8FF77C34888D2B84598B76F" unitRef="usd">38101000</us-gaap:IncomeTaxExpenseBenefit>
	<us-gaap:IncreaseDecreaseInAccountsPayable contextRef="FD2016Q1YTD" decimals="-3" id="Fact-9127C317241CBF8D46F2D2B84597040E" unitRef="usd">-40060000</us-gaap:IncreaseDecreaseInAccountsPayable>
	<us-gaap:IncreaseDecreaseInAccountsPayable contextRef="FD2017Q1YTD" decimals="-3" id="Fact-85C3AB8E935506AB52ADD2B845A2BD75" unitRef="usd">-53957000</us-gaap:IncreaseDecreaseInAccountsPayable>
	<us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-11C072B481C71AB0871FD2B8459EB3D7" unitRef="usd">-16470000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
	<us-gaap:IncreaseDecreaseInAccruedLiabilities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-3C27E2B9A6375A4912B0D2B845AC706D" unitRef="usd">-10457000</us-gaap:IncreaseDecreaseInAccruedLiabilities>
	<us-gaap:IncreaseDecreaseInCustomerDeposits contextRef="FD2016Q1YTD" decimals="-3" id="Fact-D8892E4593E98BB1D6C0D2B8452DBB2D" unitRef="usd">2098000</us-gaap:IncreaseDecreaseInCustomerDeposits>
	<us-gaap:IncreaseDecreaseInCustomerDeposits contextRef="FD2017Q1YTD" decimals="-3" id="Fact-4A941F858EFD82AF51A2D2B845253FFC" unitRef="usd">736000</us-gaap:IncreaseDecreaseInCustomerDeposits>
	<us-gaap:IncreaseDecreaseInIncomeTaxesReceivable contextRef="FD2016Q1YTD" decimals="-3" id="Fact-2408066EBC7374767F77D2B845A400BA" unitRef="usd">-38877000</us-gaap:IncreaseDecreaseInIncomeTaxesReceivable>
	<us-gaap:IncreaseDecreaseInIncomeTaxesReceivable contextRef="FD2017Q1YTD" decimals="-3" id="Fact-2E76C44EE5AF06D477CCD2B845A7EFE3" unitRef="usd">-1397000</us-gaap:IncreaseDecreaseInIncomeTaxesReceivable>
	<us-gaap:IncreaseDecreaseInInterestPayableNet contextRef="FD2016Q1YTD" decimals="-3" id="Fact-4976CB980AFDDCCB4A5BD2B84528C03B" unitRef="usd">-11219000</us-gaap:IncreaseDecreaseInInterestPayableNet>
	<us-gaap:IncreaseDecreaseInInterestPayableNet contextRef="FD2017Q1YTD" decimals="-3" id="Fact-8EEB4784D1075220C194D2B845A3B82C" unitRef="usd">-11187000</us-gaap:IncreaseDecreaseInInterestPayableNet>
	<us-gaap:IncreaseDecreaseInInventories contextRef="FD2016Q1YTD" decimals="-3" id="Fact-B3FE0563353FE47BA793D2B84599A75C" unitRef="usd">-61600000</us-gaap:IncreaseDecreaseInInventories>
	<us-gaap:IncreaseDecreaseInInventories contextRef="FD2017Q1YTD" decimals="-3" id="Fact-5519C4793FE106B76AC1D2B845A025B5" unitRef="usd">-34201000</us-gaap:IncreaseDecreaseInInventories>
	<us-gaap:IncreaseDecreaseInMaterialsAndSupplies contextRef="FD2016Q1YTD" decimals="-3" id="Fact-820316BF844D6317FEA0D2B8459C7391" unitRef="usd">-3617000</us-gaap:IncreaseDecreaseInMaterialsAndSupplies>
	<us-gaap:IncreaseDecreaseInMaterialsAndSupplies contextRef="FD2017Q1YTD" decimals="-3" id="Fact-B68B5A8ED3F093706A0AD2B845A01B34" unitRef="usd">204000</us-gaap:IncreaseDecreaseInMaterialsAndSupplies>
	<us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet contextRef="FD2016Q1YTD" decimals="-3" id="Fact-C067895D5312CAE976E8D2B8459A5FCF" unitRef="usd">-23848000</us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet>
	<us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet contextRef="FD2017Q1YTD" decimals="-3" id="Fact-E7CAFCCE12F0B405CE06D2B8459B70A2" unitRef="usd">-3447000</us-gaap:IncreaseDecreaseInOtherOperatingCapitalNet>
	<us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable contextRef="FD2016Q1YTD" decimals="-3" id="Fact-ADA0B49586A0D0298C8AD2B845A271CA" unitRef="usd">535000</us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable>
	<us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable contextRef="FD2017Q1YTD" decimals="-3" id="Fact-AEEFE57496AAE8730453D2B845A27B13" unitRef="usd">-5140000</us-gaap:IncreaseDecreaseInPropertyAndOtherTaxesPayable>
	<us-gaap:IncreaseDecreaseInReceivables contextRef="FD2016Q1YTD" decimals="-3" id="Fact-971C4F2E07602C875E10D2B845A6A995" unitRef="usd">-19801000</us-gaap:IncreaseDecreaseInReceivables>
	<us-gaap:IncreaseDecreaseInReceivables contextRef="FD2017Q1YTD" decimals="-3" id="Fact-36599AA52D58572AA32CD2B8452E73F7" unitRef="usd">-39508000</us-gaap:IncreaseDecreaseInReceivables>
	<us-gaap:IncreaseDecreaseInRegulatoryAssetsAndLiabilities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-27278ADEF7694438B049D2B845A2DC0B" unitRef="usd">593000</us-gaap:IncreaseDecreaseInRegulatoryAssetsAndLiabilities>
	<us-gaap:IncreaseDecreaseInRegulatoryAssetsAndLiabilities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-52AB0606A199328FF026D2B8459C4684" unitRef="usd">-18641000</us-gaap:IncreaseDecreaseInRegulatoryAssetsAndLiabilities>
	<us-gaap:InterestExpense contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BBB73A45EC0402026C23D2B8452E71AB" unitRef="usd">10847000</us-gaap:InterestExpense>
	<us-gaap:InterestExpense contextRef="FD2017Q1YTD" decimals="-3" id="Fact-026CF1DF54C7FE0C2D78D2B845321B16" unitRef="usd">11481000</us-gaap:InterestExpense>
	<us-gaap:InterestPayableCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-618DFFEBF3B287B61181D2B845950422" unitRef="usd">18854000</us-gaap:InterestPayableCurrent>
	<us-gaap:InterestPayableCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-056DC7D0E8DEBD38072BD2B84588A127" unitRef="usd">7667000</us-gaap:InterestPayableCurrent>
	<us-gaap:LettersOfCreditOutstandingAmount contextRef="FI2017Q1" decimals="-5" id="Fact-324626ACC8D483D002A9D2B8452F084B" unitRef="usd">1800000</us-gaap:LettersOfCreditOutstandingAmount>
	<us-gaap:LiabilitiesAndStockholdersEquity contextRef="FI2016Q4" decimals="-3" id="Fact-E4A91D23F36AA419510FD2B8458FD7CF" unitRef="usd">4942791000</us-gaap:LiabilitiesAndStockholdersEquity>
	<us-gaap:LiabilitiesAndStockholdersEquity contextRef="FI2017Q1" decimals="-3" id="Fact-249BB7660BD06A36E382D2B84589CB4B" unitRef="usd">4889874000</us-gaap:LiabilitiesAndStockholdersEquity>
	<us-gaap:LiabilitiesCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-A8A864BE8A420BFFCD74D2B8453CCA60" unitRef="usd">443933000</us-gaap:LiabilitiesCurrent>
	<us-gaap:LiabilitiesCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-D26D9DCE4A315F80F184D2B84529A76D" unitRef="usd">307943000</us-gaap:LiabilitiesCurrent>
	<us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity contextRef="FI2017Q1" decimals="-5" id="Fact-23D632CF2734E91F388ED2B84532D30F" unitRef="usd">612800000</us-gaap:LineOfCreditFacilityRemainingBorrowingCapacity>
	<us-gaap:LongTermDebt contextRef="FI2016Q4" decimals="-8" id="Fact-DB7F626AB320F5C17DD9D2B845A684FC" unitRef="usd">1200000000</us-gaap:LongTermDebt>
	<us-gaap:LongTermDebt contextRef="FI2017Q1" decimals="-8" id="Fact-7426B6DB98424C2625C2D2B84597EAE5" unitRef="usd">1200000000</us-gaap:LongTermDebt>
	<us-gaap:LongTermDebtFairValue contextRef="FI2016Q4_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel2Member" decimals="-8" id="Fact-FC96743D911ACCA5D4DB643877CE1082" unitRef="usd">1200000000</us-gaap:LongTermDebtFairValue>
	<us-gaap:LongTermDebtFairValue contextRef="FI2017Q1_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel2Member" decimals="-8" id="Fact-AE26B09230FCA475206ED2B8459EF9F2" unitRef="usd">1200000000</us-gaap:LongTermDebtFairValue>
	<us-gaap:LongTermDebtNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-66A7643A153020D8844DD2B8454846C0" unitRef="usd">1192446000</us-gaap:LongTermDebtNoncurrent>
	<us-gaap:LongTermDebtNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-9AE31EDB7ECCCD71DD1DD2B8458E992F" unitRef="usd">1192647000</us-gaap:LongTermDebtNoncurrent>
	<us-gaap:MaterialsSuppliesAndOther contextRef="FI2016Q4" decimals="-3" id="Fact-6B8DEED0C62A8907299BD2B8458321CD" unitRef="usd">34084000</us-gaap:MaterialsSuppliesAndOther>
	<us-gaap:MaterialsSuppliesAndOther contextRef="FI2017Q1" decimals="-3" id="Fact-0914D687B1E66F6DE8F8D2B8454172C9" unitRef="usd">34288000</us-gaap:MaterialsSuppliesAndOther>
	<us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-A0ECE110629624AB7003A69AC1606308" unitRef="usd">-63795000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
	<us-gaap:NetCashProvidedByUsedInFinancingActivities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-E02CDBEEE20D6D7489BDA69AC16ABD14" unitRef="usd">-93283000</us-gaap:NetCashProvidedByUsedInFinancingActivities>
	<us-gaap:NetCashProvidedByUsedInInvestingActivities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-F3017121065B90DB3270D2B8459A4BBC" unitRef="usd">-74869000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
	<us-gaap:NetCashProvidedByUsedInInvestingActivities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-498B621A7E1D48B33DE3D2B8459451FF" unitRef="usd">-70410000</us-gaap:NetCashProvidedByUsedInInvestingActivities>
	<us-gaap:NetCashProvidedByUsedInOperatingActivities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-A025A7D48900C9FCB0ECD2B8459FA380" unitRef="usd">188888000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
	<us-gaap:NetCashProvidedByUsedInOperatingActivities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-A9C626096B3991EB1E5BD2B8458385FE" unitRef="usd">162236000</us-gaap:NetCashProvidedByUsedInOperatingActivities>
	<us-gaap:NetIncomeLoss contextRef="FD2016Q1YTD" decimals="-3" id="Fact-EC00DF9483678A28433CD2B84548C5D0" unitRef="usd">64743000</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD" decimals="-3" id="Fact-EC5E8BB8DD56A8E004D1D2B8458B450D" unitRef="usd">76456000</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-E3C943199D94206960E9D2B8459BB087" unitRef="usd">0</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-80C1F424763EBF7F6A74D2B845A90E53" unitRef="usd">0</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-85D4BC4A1E51AE7FA827D2B845A3483B" unitRef="usd">0</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-ACE1395407C03F368A38D2B845881913" unitRef="usd">76456000</us-gaap:NetIncomeLoss>
	<us-gaap:NetIncomeLoss contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-3DDD087F80712B2767C1D2B8459AFD0F" unitRef="usd">0</us-gaap:NetIncomeLoss>
	<us-gaap:NetRegulatoryAssets contextRef="FI2016Q4" decimals="-3" id="Fact-7942FE0F9A7E3E6B5F89D2B8458B3386" unitRef="usd">511746000</us-gaap:NetRegulatoryAssets>
	<us-gaap:NetRegulatoryAssets contextRef="FI2017Q1" decimals="-3" id="Fact-3916C0CF3BEE80C84C87D2B845AA34E7" unitRef="usd">490994000</us-gaap:NetRegulatoryAssets>
	<us-gaap:OperatingIncomeLoss contextRef="FD2016Q1YTD" decimals="-3" id="Fact-DF8A2065E146BB77CE67D2B84527EC6E" unitRef="usd">116073000</us-gaap:OperatingIncomeLoss>
	<us-gaap:OperatingIncomeLoss contextRef="FD2017Q1YTD" decimals="-3" id="Fact-8DDC855891979973BF9CD2B8458BE298" unitRef="usd">125132000</us-gaap:OperatingIncomeLoss>
	<us-gaap:OtherAssetsCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-57C1DCE481C652F3EFC4D2B8454762AD" unitRef="usd">20654000</us-gaap:OtherAssetsCurrent>
	<us-gaap:OtherAssetsCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-79C856B6E4DF75A1A322D2B84548E91B" unitRef="usd">18616000</us-gaap:OtherAssetsCurrent>
	<us-gaap:OtherAssetsNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-E6E44F6706B4320610F0D2B8453FD4CC" unitRef="usd">43773000</us-gaap:OtherAssetsNoncurrent>
	<us-gaap:OtherAssetsNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-D54D9C2898FB6B6FDABDD2B8453C127C" unitRef="usd">46563000</us-gaap:OtherAssetsNoncurrent>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-3517059E911348D261D0D2B845AC710B" unitRef="usd">116000</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-BDDF6FE7D8C99F308FA2D2B845B1AD5E" unitRef="usd">129000</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-67966245666FC282837DD2B8454AF27D" unitRef="usd">129000</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-C74E1F7FBD4CAE6E1C34D2B8459AC613" unitRef="usd">0</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-26905735C0D6648B6F33D2B8459A57AC" unitRef="usd">0</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossNetOfTax contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-108EF288199007AC86EED2B8458AF292" unitRef="usd">0</us-gaap:OtherComprehensiveIncomeLossNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-867F27B2748623BC3483D2B845B03A4C" unitRef="usd">-116000</us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-5669362B5D9D2054FBEED2B845AF474D" unitRef="usd">-129000</us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-89EF45A5FC690764C629D2B845A800D0" unitRef="usd">-72000</us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax>
	<us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-9A39619DFF94327C7820D2B845A9732C" unitRef="usd">-80000</us-gaap:OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-34A987FD883A21AC13F0D2B845AE6DBF" unitRef="usd">-188000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-17A4E18C3F05CE4851BAD2B845AC6361" unitRef="usd">-209000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-42AB545F1DD906ABDB5AD2B845AAA9A0" unitRef="usd">-116000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-8E2C6F293991F7953BF0D2B8459F64CF" unitRef="usd">-129000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax contextRef="FD2016Q1YTD" decimals="-3" id="Fact-0021053DB567B635E34ED2B845ABEEF1" unitRef="usd">-72000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax>
	<us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax contextRef="FD2017Q1YTD" decimals="-3" id="Fact-116A374EA2FDB9FC150FD2B845A8CC4A" unitRef="usd">-80000</us-gaap:OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax>
	<us-gaap:OtherLiabilitiesCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-0E9843B3A6F607227E88D2B845487EB9" unitRef="usd">21380000</us-gaap:OtherLiabilitiesCurrent>
	<us-gaap:OtherLiabilitiesCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-447867B830235277E07ED2B8458D3809" unitRef="usd">26884000</us-gaap:OtherLiabilitiesCurrent>
	<us-gaap:OtherLiabilitiesNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-0D0C0D20783F5099D36BD2B8452CFCD0" unitRef="usd">76057000</us-gaap:OtherLiabilitiesNoncurrent>
	<us-gaap:OtherLiabilitiesNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-B9B8752A5998AA1F9051D2B8452A25E1" unitRef="usd">79075000</us-gaap:OtherLiabilitiesNoncurrent>
	<us-gaap:OtherNonoperatingExpense contextRef="FD2016Q1YTD" decimals="-3" id="Fact-330272F532B66600FB31D2B845278F4C" unitRef="usd">455000</us-gaap:OtherNonoperatingExpense>
	<us-gaap:OtherNonoperatingExpense contextRef="FD2017Q1YTD" decimals="-3" id="Fact-5978FACB3E6F5320F817D2B8458A5E78" unitRef="usd">340000</us-gaap:OtherNonoperatingExpense>
	<us-gaap:OtherNonoperatingIncome contextRef="FD2016Q1YTD" decimals="-3" id="Fact-8CABD03B5260A47B3DD9D2B84584D627" unitRef="usd">18000</us-gaap:OtherNonoperatingIncome>
	<us-gaap:OtherNonoperatingIncome contextRef="FD2017Q1YTD" decimals="-3" id="Fact-101AB9B4396906D69AAED2B845998B21" unitRef="usd">1246000</us-gaap:OtherNonoperatingIncome>
	<us-gaap:PaymentsForProceedsFromOtherInvestingActivities contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BCECAAD3B472F910CD69D2B845A4CB4C" unitRef="usd">-392000</us-gaap:PaymentsForProceedsFromOtherInvestingActivities>
	<us-gaap:PaymentsForProceedsFromOtherInvestingActivities contextRef="FD2017Q1YTD" decimals="-3" id="Fact-B06D7445CA034D8C4BC4D2B845426757" unitRef="usd">-61000</us-gaap:PaymentsForProceedsFromOtherInvestingActivities>
	<us-gaap:PaymentsForRemovalCosts contextRef="FD2016Q1YTD" decimals="-3" id="Fact-EB72C96512209520C2FAD2B84596B29D" unitRef="usd">14171000</us-gaap:PaymentsForRemovalCosts>
	<us-gaap:PaymentsForRemovalCosts contextRef="FD2017Q1YTD" decimals="-3" id="Fact-916C4CB8035FACE36766D2B845B11647" unitRef="usd">10387000</us-gaap:PaymentsForRemovalCosts>
	<us-gaap:PaymentsForRepurchaseOfCommonStock contextRef="FD2016Q1YTD" decimals="-3" id="Fact-721FFD9D6FA7B9E19066D2B845A22A38" unitRef="usd">24066000</us-gaap:PaymentsForRepurchaseOfCommonStock>
	<us-gaap:PaymentsForRepurchaseOfCommonStock contextRef="FD2017Q1YTD" decimals="-3" id="Fact-7077EE2FC77F765F5799D2B8459BC2EF" unitRef="usd">2469000</us-gaap:PaymentsForRepurchaseOfCommonStock>
	<us-gaap:PaymentsOfDividends contextRef="FD2016Q1YTD" decimals="-3" id="Fact-D6D174396296B79B7DE7D2B845A081B7" unitRef="usd">18380000</us-gaap:PaymentsOfDividends>
	<us-gaap:PaymentsOfDividends contextRef="FD2017Q1YTD" decimals="-3" id="Fact-25D1BE7B1EA9107335F4D2B845AB567A" unitRef="usd">22034000</us-gaap:PaymentsOfDividends>
	<us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="FD2016Q1YTD" decimals="-3" id="Fact-B313AB175EC3CDC448A7D2B845A79816" unitRef="usd">75261000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
	<us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="FD2017Q1YTD" decimals="-3" id="Fact-0C4D9D861D219C5ADE27D2B845981A58" unitRef="usd">70471000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
	<us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-7326934B1BC9C3D69C25D2B845284D1B" unitRef="usd">303507000</us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent>
	<us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-1E4EBD956DC0C0D2ACD7D2B8452B7889" unitRef="usd">300535000</us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent>
	<us-gaap:PriorPeriodReclassificationAdjustment contextRef="FD2017Q1YTD" decimals="-5" id="Fact-77A91C5E1B4C8F096433ABBCF82D2CFC" unitRef="usd">8800000</us-gaap:PriorPeriodReclassificationAdjustment>
	<us-gaap:ProceedsAndExcessTaxBenefitFromSharebasedCompensation contextRef="FD2017Q1YTD" decimals="-5" id="Fact-13870CB38C57BDE7A4CCAAF910AA8AF9" unitRef="usd">5200000</us-gaap:ProceedsAndExcessTaxBenefitFromSharebasedCompensation>
	<us-gaap:ProceedsFromRepaymentsOfCommercialPaper contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BC671387C833D7ECED32D2B8459EF287" unitRef="usd">-12500000</us-gaap:ProceedsFromRepaymentsOfCommercialPaper>
	<us-gaap:ProceedsFromRepaymentsOfCommercialPaper contextRef="FD2017Q1YTD" decimals="-3" id="Fact-CE69DB6FFF5798C20BC5D2B845A52925" unitRef="usd">-59600000</us-gaap:ProceedsFromRepaymentsOfCommercialPaper>
	<us-gaap:ProvisionForDoubtfulAccounts contextRef="FD2016Q1YTD" decimals="-3" id="Fact-E15976B2E8D1F5910018D2B845AF69F1" unitRef="usd">1384000</us-gaap:ProvisionForDoubtfulAccounts>
	<us-gaap:ProvisionForDoubtfulAccounts contextRef="FD2017Q1YTD" decimals="-3" id="Fact-68A1FB8F03A092273A04D2B845AE6246" unitRef="usd">2281000</us-gaap:ProvisionForDoubtfulAccounts>
	<us-gaap:PublicUtilitiesInventory contextRef="FI2016Q4" decimals="-3" id="Fact-C8405E1F3BE2576F8FD8D2B84542267F" unitRef="usd">125432000</us-gaap:PublicUtilitiesInventory>
	<us-gaap:PublicUtilitiesInventory contextRef="FI2017Q1" decimals="-3" id="Fact-89371E74DC7D470E41FDD2B84541BA42" unitRef="usd">91231000</us-gaap:PublicUtilitiesInventory>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation contextRef="FI2016Q4" decimals="-3" id="Fact-9968748052D7BCBF34B2D2B84548A856" unitRef="usd">1672548000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation contextRef="FI2017Q1" decimals="-3" id="Fact-559159850B7D5B3C8ADDD2B8454000FC" unitRef="usd">1694389000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet contextRef="FI2016Q4" decimals="-3" id="Fact-F64AE0330715A01AB550D2B8453FC148" unitRef="usd">3731620000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet contextRef="FI2017Q1" decimals="-3" id="Fact-35431688F308DDFEC605D2B845498152" unitRef="usd">3773888000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentNet>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService contextRef="FI2016Q4" decimals="-3" id="Fact-F94ED3AB5D898E0E30B8D2B8453B3118" unitRef="usd">5404168000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService>
	<us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService contextRef="FI2017Q1" decimals="-3" id="Fact-332C71F1FE80C7F8EBA7D2B8453E6929" unitRef="usd">5468277000</us-gaap:PublicUtilitiesPropertyPlantAndEquipmentPlantInService>
	<us-gaap:RatioOfIndebtednessToNetCapital1 contextRef="FI2017Q1" decimals="INF" id="Fact-6A3A23D0487E66B1E6B6D2B84532B8F9" unitRef="number">0.4</us-gaap:RatioOfIndebtednessToNetCapital1>
	<us-gaap:ReceivablesNetCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-EE3DA245A5A26AAEAA63D2B8453ED865" unitRef="usd">290944000</us-gaap:ReceivablesNetCurrent>
	<us-gaap:ReceivablesNetCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-711C206D8C8DA38BEDFCD2B84549C0AC" unitRef="usd">249155000</us-gaap:ReceivablesNetCurrent>
	<us-gaap:RegulatedOperatingRevenueGas contextRef="FD2016Q1YTD" decimals="-3" id="Fact-D423204F14F103044168D2B84590D561" unitRef="usd">508364000</us-gaap:RegulatedOperatingRevenueGas>
	<us-gaap:RegulatedOperatingRevenueGas contextRef="FD2017Q1YTD" decimals="-3" id="Fact-F2403390229FA143A7F2D2B845822A92" unitRef="usd">550408000</us-gaap:RegulatedOperatingRevenueGas>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-C08C434C87398C1FF107D2B8458B5E30" unitRef="usd">8240000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-4B3369ABC249913BA2AED2B8452F35EB" unitRef="usd">523668000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-BAB69830AC13F29B330ED2B845258F93" unitRef="usd">29901000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-82A251A8A0F852D175FAD2B845302C14" unitRef="usd">17661000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-A75CABAFC0AE1A6ED39ED2B8458F5212" unitRef="usd">8920000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-DCC55E8F72F6EDC57C6FD2B845860E5E" unitRef="usd">458946000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-6859EBA9367907275A4BD2B8453A4791" unitRef="usd">9049000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-F5968D6803711308C42ED2B8453BDD09" unitRef="usd">504974000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-218DB282BCB5469AE84ED2B845413D9C" unitRef="usd">17914000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-A837C24BFD83C9153834D2B845347B58" unitRef="usd">19781000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-FCF032B7CDD1309B8454D2B8453D96C5" unitRef="usd">8718000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssets contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-8CBF412B9B47F148CE52D2B845412B6C" unitRef="usd">449512000</us-gaap:RegulatoryAssets>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4" decimals="-3" id="Fact-45728EFD95623091068AD2B8458233C8" unitRef="usd">83146000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-BA0CEF71FBEDD1B4393BD2B845311905" unitRef="usd">3274000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-2047EDC21FF8F594689AD2B8458908E0" unitRef="usd">83146000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-2D9759A82BAFE4C0B257D2B8458F4756" unitRef="usd">29901000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-29B5A5C17C9B47B6BAE5D2B8453868B5" unitRef="usd">17661000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-8E4F8374705803C352DED2B84530D9E9" unitRef="usd">812000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-D560C19F604163DE2AA5D2B8458EDC5F" unitRef="usd">31498000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1" decimals="-3" id="Fact-BCEEB77223809C9CD6F7D2B8453C8F61" unitRef="usd">74636000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-F218A78A818C9010EBBDD2B84541643B" unitRef="usd">4019000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-01875C08D0989FEFF2B9D2B845B0987B" unitRef="usd">74636000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-8868641D27CB04DA3A9DD2B845AAFC2E" unitRef="usd">17914000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-063EF81929A5477D119BD2B8453FE0B9" unitRef="usd">19781000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-05E58F46DD82EFE8EED6D2B84537B1F4" unitRef="usd">812000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsCurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-FBF91DC4F2D4381ACABBD2B8453968BF" unitRef="usd">32110000</us-gaap:RegulatoryAssetsCurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4" decimals="-3" id="Fact-29F7A6B6C3D3B5BDDD1ED2B845443819" unitRef="usd">440522000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-A502DCC185E94D240DCFD2B845314AAA" unitRef="usd">4966000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-8E74273893DEE12FC2E8D2B845913230" unitRef="usd">440522000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-C6DA96AE906FCA80B890D2B8458C2AB8" unitRef="usd">0</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-19BEE10C2B352202DBB1D2B845867A10" unitRef="usd">0</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-3DC16269CD49F842A816D2B8458D472A" unitRef="usd">8108000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-336E9E76EA9199D4795FD2B8458C1B7D" unitRef="usd">427448000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1" decimals="-3" id="Fact-65A182A5E113C0F06345D2B8453C8694" unitRef="usd">430338000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_OtherregulatoryassetsMember" decimals="-3" id="Fact-1051FD9FD6A6F66BC022D2B845250271" unitRef="usd">5030000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_TotalregulatoryassetsnetofamortizationMember" decimals="-3" id="Fact-EC030835D64D47C8A2AFD2B8452DEBF8" unitRef="usd">430338000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_UnderrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-8B681450F442A9459195D2B8454298E2" unitRef="usd">0</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_ogs_WeathernormalizationMember" decimals="-3" id="Fact-249C5793563EAB8A7721D2B845AD6DAA" unitRef="usd">0</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_LossOnReacquiredDebtMember" decimals="-3" id="Fact-C8303B77205E9FDDC103D2B845AB3416" unitRef="usd">7906000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryAssetsNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryAssetAxis_us-gaap_PensionCostsMember" decimals="-3" id="Fact-F146E93F5AC8FDFAD7C8D2B84543E6C0" unitRef="usd">417402000</us-gaap:RegulatoryAssetsNoncurrent>
	<us-gaap:RegulatoryLiabilities contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-868180182BFE4657213FD2B845259284" unitRef="usd">1768000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilities contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-508654F62727D3852262D2B8453029AC" unitRef="usd">10154000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilities contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-AEA9B9FD98960965C342D2B845301F6A" unitRef="usd">11922000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilities contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-95B12E4F63844789C21DD2B8452BE2B8" unitRef="usd">1142000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilities contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-88BE60EB94D60F4C4EC9D2B8452C391E" unitRef="usd">12838000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilities contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-81AF45A2C02147DF0F9CD2B84532D30E" unitRef="usd">13980000</us-gaap:RegulatoryLiabilities>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-641ABC9D0AF61F22D987D2B845880D4C" unitRef="usd">1768000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-F4C1418AC561A93CF382D2B8452E3FDD" unitRef="usd">10154000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-6CB636C90704FD9976CFD2B84589F91D" unitRef="usd">11922000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-0FEC5054DA8BD8E35161D2B8453E351A" unitRef="usd">1142000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-AEACB2103AB4F1DBEAF5D2B8453C0C71" unitRef="usd">12838000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityCurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-A6F6287B120470602956D2B8452E8A62" unitRef="usd">13980000</us-gaap:RegulatoryLiabilityCurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-6E84866421DE746CF221D2B8458797F5" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-D6FE8F829A7E92ABF7FAD2B84591A59D" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2016Q4_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-B7D8CBA2DCC953D17880D2B84526F4B3" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_AdvaloremtaxMember" decimals="-3" id="Fact-0AD9B421581E7220D79DD2B8452B60E8" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_OverrecoveredpurchasedgascostsMember" decimals="-3" id="Fact-A2A6B1D4FDEE029DC1FFD2B8452A8262" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RegulatoryLiabilityNoncurrent contextRef="FI2017Q1_us-gaap_RegulatoryLiabilityAxis_ogs_TotalregulatedliabilitiesMember" decimals="-3" id="Fact-6DE416C061D5E2E8D21ED2B845AB7F10" unitRef="usd">0</us-gaap:RegulatoryLiabilityNoncurrent>
	<us-gaap:RetainedEarningsAccumulatedDeficit contextRef="FI2016Q4" decimals="-3" id="Fact-F49A518F529940F325FED2B84585F6D6" unitRef="usd">161021000</us-gaap:RetainedEarningsAccumulatedDeficit>
	<us-gaap:RetainedEarningsAccumulatedDeficit contextRef="FI2017Q1" decimals="-3" id="Fact-67AE015177474D84493DD2B8452D0951" unitRef="usd">226195000</us-gaap:RetainedEarningsAccumulatedDeficit>
	<us-gaap:SegmentReportingDisclosureOfMajorCustomers contextRef="FD2016Q1YTD" id="Fact-4067A902983B978BD77DD2B845A873A8">0</us-gaap:SegmentReportingDisclosureOfMajorCustomers>
	<us-gaap:SegmentReportingDisclosureOfMajorCustomers contextRef="FD2017Q1YTD" id="Fact-C1CE63FC57320B0D08F5D2B8453D0DCB">0</us-gaap:SegmentReportingDisclosureOfMajorCustomers>
	<us-gaap:ShareBasedCompensation contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BD8E1234892A1C2DEF7CD2B845AD949B" unitRef="usd">4101000</us-gaap:ShareBasedCompensation>
	<us-gaap:ShareBasedCompensation contextRef="FD2017Q1YTD" decimals="-3" id="Fact-6BD0EA4FFB9ADBE23D66D2B845A8E7B1" unitRef="usd">2421000</us-gaap:ShareBasedCompensation>
	<us-gaap:ShortTermBorrowings contextRef="FI2017Q1" decimals="-5" id="Fact-BF6414B7B4C16BE070BAA689352EB0C0" unitRef="usd">85400000</us-gaap:ShortTermBorrowings>
	<us-gaap:StockIssuedDuringPeriodSharesNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="0" id="Fact-B20C1434AC4BC4644B57D2B845ACC6BF" unitRef="shares">0</us-gaap:StockIssuedDuringPeriodSharesNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD" decimals="-3" id="Fact-1B757AE0A188CDC78F87D2B8459F30DB" unitRef="usd">-6766000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-B58B9DA7517ED692427FD2B8458AD0FA" unitRef="usd">0</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-286E2AEED49BA3D591C2D2B84595DDEC" unitRef="usd">-17469000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-1171266FD6A0719BADA1D2B845A463AE" unitRef="usd">0</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-1DD22E6458DADC13FE55D2B845425350" unitRef="usd">0</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockIssuedDuringPeriodValueNewIssues contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-5E297AB33A20252C7996D2B84528F546" unitRef="usd">10703000</us-gaap:StockIssuedDuringPeriodValueNewIssues>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4" decimals="-3" id="Fact-3249B4F461F08084010FD2B8452B9460" unitRef="usd">1888280000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-B0E66962188B4A64997CD2B84583B42E" unitRef="usd">-4715000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-D0E6D6B9C7F0C40ED379D2B845A568B3" unitRef="usd">1749574000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-1049B90C96E633AEB318D2B84598D954" unitRef="usd">526000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-AA1465DD387D4763ECDFD2B8458628C0" unitRef="usd">161021000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-ADBA67CD7855D9D2BDDED2B84594F75D" unitRef="usd">-18126000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1" decimals="-3" id="Fact-D5B327926970311088BCD2B8458E72E6" unitRef="usd">1944578000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-9E68431E3010AD01BB62D2B845842F73" unitRef="usd">-4586000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-0CCCDCE3FE7C14A0C31FD2B845AC3A5F" unitRef="usd">1732335000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-2DEC8D8BBC62DDFFAECBD2B845B1D5D0" unitRef="usd">526000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-626C8B9F1FB5813BDCD8D2B84590BEB4" unitRef="usd">226195000</us-gaap:StockholdersEquity>
	<us-gaap:StockholdersEquity contextRef="FI2017Q1_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-0AD9BD6BDB00CD0AB55FD2B845932514" unitRef="usd">-9892000</us-gaap:StockholdersEquity>
	<us-gaap:TreasuryStockShares contextRef="FI2016Q4" decimals="0" id="Fact-98566283B1EBEF640790D2B84527D29B" unitRef="shares">314745</us-gaap:TreasuryStockShares>
	<us-gaap:TreasuryStockShares contextRef="FI2017Q1" decimals="0" id="Fact-4C3CB79EC0491C9E396ED2B8452F806B" unitRef="shares">166091</us-gaap:TreasuryStockShares>
	<us-gaap:TreasuryStockSharesAcquired contextRef="FD2017Q1YTD" decimals="-3" id="Fact-4931DAC43C39085B8B47D2B845A10D55" unitRef="shares">37000</us-gaap:TreasuryStockSharesAcquired>
	<us-gaap:TreasuryStockValue contextRef="FI2016Q4" decimals="-3" id="Fact-F18DEE9C4875129AEDA6D2B845856AAD" unitRef="usd">18126000</us-gaap:TreasuryStockValue>
	<us-gaap:TreasuryStockValue contextRef="FI2017Q1" decimals="-3" id="Fact-61EAAEFA42318A47B33CD2B84590DFA6" unitRef="usd">9892000</us-gaap:TreasuryStockValue>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD" decimals="-3" id="Fact-F7DC0D25FE04A1F7AA2CD2B845A7A825" unitRef="usd">2469000</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD" decimals="-5" id="Fact-9BAC4B1652EC0698D481D2B8459402E3" unitRef="usd">2500000</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AccumulatedOtherComprehensiveIncomeMember" decimals="-3" id="Fact-BB14879354D769625DCDD2B8458C1F47" unitRef="usd">0</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember" decimals="-3" id="Fact-1B2AECC0DEB24D14CD3CD2B84594CFC3" unitRef="usd">0</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_CommonStockMember" decimals="-3" id="Fact-A7220BAC896FAA5046C5D2B845AF97BC" unitRef="usd">0</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_RetainedEarningsMember" decimals="-3" id="Fact-541F0ACC917F06A5B995D2B84582CF8C" unitRef="usd">0</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:TreasuryStockValueAcquiredCostMethod contextRef="FD2017Q1YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_TreasuryStockMember" decimals="-3" id="Fact-541B090E7AAD350D1DDAD2B8459394B6" unitRef="usd">2469000</us-gaap:TreasuryStockValueAcquiredCostMethod>
	<us-gaap:UtilitiesOperatingExpense contextRef="FD2016Q1YTD" decimals="-3" id="Fact-BE7AF1362EE3127D681BD2B8452DDC65" unitRef="usd">156562000</us-gaap:UtilitiesOperatingExpense>
	<us-gaap:UtilitiesOperatingExpense contextRef="FD2017Q1YTD" decimals="-3" id="Fact-8DC265FC95E3C5497F56D2B84592B64C" unitRef="usd">162122000</us-gaap:UtilitiesOperatingExpense>
	<us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization contextRef="FD2016Q1YTD" decimals="-3" id="Fact-52F4DD0BBAB375FF0195D2B8458A4990" unitRef="usd">34684000</us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization>
	<us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization contextRef="FD2017Q1YTD" decimals="-3" id="Fact-BC6C9D503841D0ABFC0FD2B8453188C3" unitRef="usd">37019000</us-gaap:UtilitiesOperatingExpenseDepreciationAndAmortization>
	<us-gaap:UtilitiesOperatingExpenseGasAndPetroleumPurchased contextRef="FD2016Q1YTD" decimals="-3" id="Fact-C1FADC18BAF1C1A04C24D2B84546426C" unitRef="usd">235729000</us-gaap:UtilitiesOperatingExpenseGasAndPetroleumPurchased>
	<us-gaap:UtilitiesOperatingExpenseGasAndPetroleumPurchased contextRef="FD2017Q1YTD" decimals="-3" id="Fact-D96707CF4106AB828EE2D2B84598F7EB" unitRef="usd">263154000</us-gaap:UtilitiesOperatingExpenseGasAndPetroleumPurchased>
	<us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations contextRef="FD2016Q1YTD" decimals="-3" id="Fact-66FC95DFAAC6FADFD371D2B8458546AB" unitRef="usd">106131000</us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations>
	<us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations contextRef="FD2017Q1YTD" decimals="-3" id="Fact-89AE4FDE26DDC8C13133D2B845843808" unitRef="usd">109357000</us-gaap:UtilitiesOperatingExpenseMaintenanceAndOperations>
	<us-gaap:UtilitiesOperatingExpenseTaxes contextRef="FD2016Q1YTD" decimals="-3" id="Fact-EC7C2B4C3298638D5D93D2B8458C0433" unitRef="usd">15747000</us-gaap:UtilitiesOperatingExpenseTaxes>
	<us-gaap:UtilitiesOperatingExpenseTaxes contextRef="FD2017Q1YTD" decimals="-3" id="Fact-9918F015A4D2E790D550D2B8452BBEC2" unitRef="usd">15746000</us-gaap:UtilitiesOperatingExpenseTaxes>
	<us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="FD2016Q1YTD" decimals="-3" id="Fact-9F71CC7AE291A6350DC0D2B845947972" unitRef="shares">588000</us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>
	<us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment contextRef="FD2017Q1YTD" decimals="-3" id="Fact-A92DA2AC46B87F1DCFB0D2B84533C993" unitRef="shares">480000</us-gaap:WeightedAverageNumberDilutedSharesOutstandingAdjustment>
	<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="FD2016Q1YTD" decimals="-3" id="Fact-EEB1D5C6705BEBF5EBB6D2B845470B05" unitRef="shares">53107000</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
	<us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding contextRef="FD2017Q1YTD" decimals="-3" id="Fact-3F7A21746832CB519A59D2B8452C9975" unitRef="shares">53056000</us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding>
	<us-gaap:WeightedAverageNumberOfSharesOutstandingBasic contextRef="FD2016Q1YTD" decimals="-3" id="Fact-529F908C83EA098249EED2B8458A4132" unitRef="shares">52519000</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
	<us-gaap:WeightedAverageNumberOfSharesOutstandingBasic contextRef="FD2017Q1YTD" decimals="-3" id="Fact-87A983F4A816F08A183CD2B84524DBB9" unitRef="shares">52576000</us-gaap:WeightedAverageNumberOfSharesOutstandingBasic>
	<ogs:SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock contextRef="FD2017Q1YTD" id="Fact-AC49E2549D5A4B114B44D2B84547742E">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The tables below present a summary of regulatory assets, net of amortization, and liabilities for the periods indicated:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="15" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:54%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:8%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31, 2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Current&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Noncurrent&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Total&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Under-recovered purchased-gas costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;17,914&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;17,914&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and postemployment benefit costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;32,110&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;417,402&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;449,512&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Weather normalization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;19,781&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;19,781&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Reacquired debt costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;812&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;7,906&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;8,718&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Other&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;4,019&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;5,030&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,049&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory assets, net of amortization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;74,636&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;430,338&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;504,974&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Over-recovered purchased-gas costs (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(12,838&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(12,838&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Ad valorem tax (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,142&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,142&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory liabilities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(13,980&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(13,980&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net regulatory assets (liabilities)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;60,656&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;430,338&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;490,994&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(a) Included in other current liabilities in our Balance Sheets.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="15" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:54%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:8%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;December 31, 2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Current&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Noncurrent&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Total&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Under-recovered purchased-gas costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;29,901&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;29,901&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and postemployment benefit costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;31,498&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;427,448&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;458,946&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Weather normalization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;17,661&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;17,661&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Reacquired debt costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;812&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,108&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,920&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Other&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;3,274&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;4,966&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,240&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory assets, net of amortization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;83,146&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;440,522&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;523,668&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Over-recovered purchased-gas costs (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(10,154&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(10,154&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Ad valorem tax (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(1,768&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(1,768&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory liabilities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(11,922&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(11,922&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net regulatory assets (liabilities)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;71,224&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;440,522&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;511,746&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</ogs:SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock>
	<us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="FD2017Q1YTD" id="Fact-55F433FE92B3D039D077D2B845838FFE">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;9.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;COMMITMENTS AND CONTINGENCIES&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Environmental Matters&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We are subject to multiple historical, wildlife preservation and environmental laws and/or regulations, which affect many aspects of our present and future operations.  Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetland preservation, hazardous materials transportation, and pipeline and facility construction.  These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits and other approvals.  Failure to comply with these laws, regulations, licenses and permits may expose us to fines, penalties and/or interruptions in our operations that could be material to our results of operations.  In addition, emission controls and/or other regulatory or permitting mandates under the Clean Air Act and other similar federal and state laws could require unexpected capital expenditures.  We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us.  Revised or additional statutes or regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition and results of operations.  Our expenditures for environmental investigation, and remediation compliance to-date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;. &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We own or retain legal responsibility for the environmental conditions at &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;12&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; former manufactured natural gas sites in Kansas.  These sites contain potentially harmful materials that are subject to control or remediation under various environmental laws and regulations.  A consent agreement with the KDHE governs all work at these sites.  The terms of the consent agreement require us to investigate these sites and set remediation activities based upon the results of the investigations and risk analysis.  Remediation typically involves the management of contaminated soils and may involve removal of structures and monitoring and/or remediation of groundwater.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We have completed or addressed removal of the source of soil contamination at &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;11&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;12&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; sites, and continue to monitor groundwater at &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;eight&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;12&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; sites according to plans approved by the KDHE.  Regulatory closure has been achieved at &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of the sites, subject to any future regulatory remediation requirements that may require additional costs. During 2016, we completed a site assessment at the twelfth site where no active soil remediation has occurred.  We have submitted a work plan to the KDHE for approval to remove contaminated soil at this site.  Costs associated with the remediation at this site are not expected to be material to our results of operations or financial position. &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;With regard to one of our former manufactured natural gas sites, periodic monitoring and a 2016 interim site investigation indicated elevated levels of potentially harmful materials.  Additional testing and work plan development is underway in 2017 to determine a remediation work plan to present to the KDHE for approval, which could impact our estimates of the cost of remediation at this site.  In the fourth quarter of 2016, we estimated the potential costs associated with additional investigation and remediation to be in the range of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$4.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; to &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$7.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.  A single reliable estimate of the remediation costs is not feasible due to the amount of uncertainty in the ultimate remediation approach that will be utilized.  Accordingly, we recorded a reserve of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$4.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; for this site in the fourth quarter of 2016.  &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.  A number of environmental issues may exist with respect to manufactured gas plants that are unknown to us.  Accordingly, future costs are dependent on the final determination and regulatory approval of any remedial actions, the complexity of the site, level of remediation required, changing technology and governmental regulations, and to the extent not recovered by insurance or recoverable in rates from our customers, could be material to our financial condition, results of operations or cash flows.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;With the trend toward stricter standards, greater regulation and more extensive permit requirements for the types of assets operated by us that are subject to environmental regulation, our environmental expenditures could increase in the future, and such expenditures may not be fully recovered by insurance or recoverable in rates from our customers, and those costs may adversely affect our financial condition, results of operations and cash flows.  We do not expect expenditures for these matters to have a material adverse effect on our financial condition, results of operations or cash flows.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Pipeline Safety&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We are subject to PHMSA regulations, including integrity-management regulations. PHMSA regulations require pipeline companies operating high-pressure transmission pipelines to perform integrity assessments on pipeline segments that pass through densely populated areas or near specifically designated high-consequence areas. In January 2012, the Pipeline Safety, Regulatory Certainty and Job Creation Act was signed into law. The law increased maximum penalties for violating federal pipeline safety regulations and directs the DOT and the Secretary of Transportation to conduct further review or studies on issues that may or may not be material to us. These issues include, but are not limited to, the following:&lt;/font&gt;&lt;/div&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;an evaluation of whether natural gas pipeline integrity-management requirements should be expanded beyond current high-consequence areas;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:justify;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;a verification of records for pipelines in class 3 and 4 locations and high-consequence areas to confirm maximum allowable operating pressures; and&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;a requirement to test previously untested pipelines operating above &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;30 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; yield strength in high-consequence areas.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In April 2016, PHMSA published a NPRM, the Safety of Gas Transmission &amp;amp; Gathering Lines Rule, in the Federal Register to revise pipeline safety regulations applicable to the safety of onshore natural gas transmission and gathering pipelines.  Proposals include changes to pipeline integrity management requirements and other safety-related requirements.  The NPRM comment period ended July 7, 2016, and comments are under review by PHMSA.  The potential capital and operating expenditures associated with the NPRM are currently being evaluated and could be significant depending on the final regulations.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Legal Proceedings&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We are a party to various litigation matters and claims that have arisen in the normal course of our operations.  While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material.  Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our results of operations, financial position or cash flows.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
	<us-gaap:ComprehensiveIncomeNoteTextBlock contextRef="FD2017Q1YTD" id="Fact-76702D5A6DEA11C394E5D2B845B0A5DF">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;6.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt; ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our Statements of Income for the periods indicated:&lt;/font&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.484375%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="10" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:47%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:12%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:12%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:23%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Details about Accumulated Other Comprehensive&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Affected Line Item in the&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#160;Income (Loss) Components&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#160;Statements of Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and other postemployment benefit plan obligations (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;10,648&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;10,037&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of unrecognized prior service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,149&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(908&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,499&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;9,129&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Regulatory adjustments (b)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(9,290&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(8,941&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;209&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;188&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Income before income taxes&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(80&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(72&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Income tax expense&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total reclassifications for the period&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;129&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;116&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost. See Note 8 for additional detail of our net periodic benefit cost&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(b) Regulatory adjustments represent pension and other postemployment benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.  See Note 2 for additional disclosures of regulatory assets and liabilities.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ComprehensiveIncomeNoteTextBlock>
	<us-gaap:DerivativesReportingOfDerivativeActivity contextRef="FD2017Q1YTD" id="Fact-5A1699E5D23DD9D1A0A7D2B8459B2576">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Accounting Treatment&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery.  The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;If certain conditions are met, we may elect to designate a derivative instrument as a hedge to mitigate the risk of exposure to changes in fair values or cash flows.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The table below summarizes the various ways in which we account for our derivative instruments and the impact on our financial statements:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="5" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:23%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:3%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:35%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:3%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:36%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Recognition and Measurement&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Accounting Treatment&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Balance Sheet&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income Statement&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="vertical-align:top;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;vertical-align:top;"&gt;Normal purchases and&lt;/font&gt;&lt;/div&gt;&lt;div style="vertical-align:top;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;vertical-align:top;"&gt;normal sales&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Recorded at historical cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Change in fair value not recognized in earnings&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Mark-to-market&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Recorded at fair value&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Change in fair value recognized in, and&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;recoverable through, the purchased-gas cost adjustment mechanisms&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We have not elected to designate any of our derivative instruments as hedges.  Premiums paid and any cash settlements received associated with the commodity derivative instruments entered into by us are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:DerivativesReportingOfDerivativeActivity>
	<us-gaap:EarningsPerShareTextBlock contextRef="FD2017Q1YTD" id="Fact-AE1EB1BA87884D30E630D2B845A35790">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;7.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;EARNINGS PER SHARE&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Basic EPS is based on net income and is calculated based upon the daily weighted-average number of common shares outstanding during the periods presented.  Also, this calculation includes fully vested stock awards that have not yet been issued as common stock. Diluted EPS includes basic EPS, plus unvested stock awards granted under our compensation plans, but only to the extent these instruments dilute earnings per share. &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="11" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:62%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:11%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended March 31, 2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Shares&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Per Share&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Amount&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands, except per share amounts&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Basic EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;76,456&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;52,576&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1.45&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Diluted EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Effect of dilutive securities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;480&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock and common stock equivalents&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;76,456&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;53,056&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1.44&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="11" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:62%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:11%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended March 31, 2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Shares&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Per Share&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Amount&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands, except per share amounts&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Basic EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;64,743&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;52,519&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1.23&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Diluted EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Effect of dilutive securities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;588&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock and common stock equivalents&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;64,743&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;53,107&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1.22&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:EarningsPerShareTextBlock>
	<us-gaap:FairValueDisclosuresTextBlock contextRef="FD2017Q1YTD" id="Fact-94EFBE3227A4C624F1A6D2B8459DB667">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;10.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;padding-left:48px;text-indent:-48px;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Accounting Treatment&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery.  The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;If certain conditions are met, we may elect to designate a derivative instrument as a hedge to mitigate the risk of exposure to changes in fair values or cash flows.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The table below summarizes the various ways in which we account for our derivative instruments and the impact on our financial statements:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="5" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:23%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:3%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:35%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:3%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:36%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Recognition and Measurement&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Accounting Treatment&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Balance Sheet&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income Statement&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="vertical-align:top;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;vertical-align:top;"&gt;Normal purchases and&lt;/font&gt;&lt;/div&gt;&lt;div style="vertical-align:top;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;vertical-align:top;"&gt;normal sales&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Recorded at historical cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Change in fair value not recognized in earnings&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Mark-to-market&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Recorded at fair value&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;-&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Change in fair value recognized in, and&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;recoverable through, the purchased-gas cost adjustment mechanisms&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We have not elected to designate any of our derivative instruments as hedges.  Premiums paid and any cash settlements received associated with the commodity derivative instruments entered into by us are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Determining Fair Value&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.  We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed.  We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;text-decoration:underline;"&gt;Fair Value Hierarchy&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value.  The levels of the hierarchy are described below:&lt;/font&gt;&lt;/div&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date.  Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate.  These unobservable inputs are developed based on the best information available and may include our own internal data.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We recognize transfers into and out of the levels as of the end of each reporting period.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&amp;#8217;s judgment regarding the degree to which market data is observable or corroborated by observable market data.  We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.  &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Derivative Instruments&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; -&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;&amp;#160; &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;At &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, we had &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;no&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; purchased natural gas call options.  At &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;December&amp;#160;31, 2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, we held purchased natural gas call options for the heating season ended March 31, 2017, with total notional amounts of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;14.3&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; Bcf, for which we paid premiums of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;color:#000000;"&gt;$5.4 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, and had a fair value of &lt;/font&gt;&lt;font style="font-family:Times New Roman;font-size:10pt;color:#000000;"&gt;$6.5 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.  The premiums paid and any cash settlements received are recorded as part of our unrecovered purchased-gas costs in current regulatory assets as these contracts are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.  Additionally, changes in fair value associated with these contracts are deferred as part of our unrecovered purchased-gas costs in our Balance Sheets.  Our natural gas call options are classified as Level 1 as fair value amounts are based on unadjusted quoted prices in active markets including NYMEX-settled prices.  There were &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;no&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; transfers between levels for the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:normal;"&gt;March 31,&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2017 and 2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Other Financial Instruments&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; -&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The approximate fair value of cash and cash equivalents, accounts receivable and accounts payable is equal to book value, due to the short-term nature of these items.  Our cash and cash equivalents are comprised of bank and money market accounts, and are classified as Level 1.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Short-term notes payable and commercial paper are due upon demand and, therefore, the carrying amounts approximate fair value and are classified as Level 1.  The book value of our long-term debt, including current maturities, was &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$1.2 billion&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; at both &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;December&amp;#160;31, 2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.  The estimated fair value of our long-term debt, including current maturities, was &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$1.2 billion&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; at both &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;December&amp;#160;31, 2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, respectively.  The estimated fair value of our Senior Notes at &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;December&amp;#160;31, 2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, was determined using quoted market prices, and are considered Level 2.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:FairValueDisclosuresTextBlock>
	<us-gaap:FairValueMeasurementPolicyPolicyTextBlock contextRef="FD2017Q1YTD" id="Fact-0B32366076ED79A5630ED2B8459C8ECA">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Determining Fair Value&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.  We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed.  We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;text-decoration:underline;"&gt;Fair Value Hierarchy&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value.  The levels of the hierarchy are described below:&lt;/font&gt;&lt;/div&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date.  Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:24px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#8226;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate.  These unobservable inputs are developed based on the best information available and may include our own internal data.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We recognize transfers into and out of the levels as of the end of each reporting period.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&amp;#8217;s judgment regarding the degree to which market data is observable or corroborated by observable market data.  We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:FairValueMeasurementPolicyPolicyTextBlock>
	<us-gaap:LongTermDebtTextBlock contextRef="FD2017Q1YTD" id="Fact-42801B7DE53AF980105DD2B845264614">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;4.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;LONG-TERM DEBT&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We have senior notes consisting of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$300 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2.07 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; senior notes due in &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2019&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$300 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;3.61 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; senior notes due in &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2024&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$600 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;4.658 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; senior notes due in &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2044&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.  The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$100 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; or more.  Such events of default would entitle the trustee or the holders of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;25 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; in aggregate principal amount of the outstanding Senior Notes to declare those Senior Notes immediately due and payable in full.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:LongTermDebtTextBlock>
	<us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="FD2017Q1YTD" id="Fact-36986688EBE46E0D70FDA684C710D56A">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Recently Issued Accounting Standards Update&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;- In March 2017, the FASB issued ASU 2017-07, &amp;#8220;Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,&amp;#8221; which requires (1) separation of net periodic service costs for pension and other postemployment benefits into service cost and other components, (2) presentation of the service cost component in the same line as other compensation costs rendered by pertinent employees during the period, which will be the only portion of benefit cost eligible for capitalization and (3) reporting the other components of net periodic benefit costs separately from the service cost component and outside a subtotal of income from operations.&amp;#160; We are evaluating the impact of this guidance, which is required to be adopted for our interim and annual reports for periods beginning after December 15, 2017, and early adoption is permitted.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In January 2017, the FASB issued ASU 2017-04, &amp;#8220;Intangibles - Goodwill and Other (Topic 350):  Simplifying the Test for Goodwill Impairment,&amp;#8221; which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 of the goodwill test, where the measurement of a goodwill impairment loss was determined by comparing the implied fair value of a reporting unit&amp;#8217;s goodwill with the carrying amount of that goodwill.  Upon adoption, a goodwill impairment will be the amount by which a reporting unit&amp;#8217;s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.&amp;#160; This new guidance is required for our interim and annual reports for periods beginning after December 15, 2019, and early adoption is permitted.  We do not expect this guidance to have a material impact on our financial statements and will adjust our goodwill testing procedures accordingly upon adoption.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In March 2016, the FASB issued ASU 2016-09, &amp;#8220;Improvements to Employee Share-Based Payment Accounting,&amp;#8221; which includes various new aspects to simplify how share-based payments are accounted for and presented in the financial statements. The new standard modifies several aspects of the accounting and reporting for employee share-based payments and related tax accounting impacts, including the presentation in the statements of operations and cash flows.  We adopted this new guidance in the current quarter, and in accordance with the transition requirements, we recorded &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$5.2 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of excess tax benefits in income tax expense and will transition all provisions of this new guidance prospectively, other than our presentation of our withholding shares for tax-withholding purposes, which will be accounted for retrospectively in the financing activities section of the statement of cash flows.  We recorded a noncash cumulative-effect increase of&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$11.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;to retained earnings, with an offset to a deferred tax asset, as of the beginning of the reporting period in 2017, for excess tax benefits earned prior to January 1, 2017, that had not been recognized. We continue our use of the estimation method to account for share unit awards forfeitures rather than actual forfeitures. The retrospective impact of our withholding shares for tax-withholding purposes to our Statement of Cash Flows for the three months ended March 31, 2016, was a&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$8.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;increase to net cash provided by operating activities and a&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$8.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;decrease to net cash used in financing activities.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In February 2016, the FASB issued ASU 2016-02, &amp;#8220;Leases (Topic 842),&amp;#8221; which prescribes recognizing lease assets and liabilities on the balance sheet and includes disclosure of key information about leasing arrangements.  &amp;#160;A modified retrospective transition approach is required for leases existing at the time of adoption.  We are evaluating our population of leases, analyzing lease agreements, and holding meetings with cross-functional teams to determine the potential impact of this accounting standard on our financial position and results of operations and the transition approach we will utilize.  This new guidance is required for our interim and annual reports for periods beginning after December 15, 2018, and early adoption is permitted.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In May 2014, the FASB issued ASU 2014-09, &amp;#8220;Revenue from Contracts with Customers,&amp;#8221; which clarifies and converges the revenue recognition principles under GAAP and International Financial Reporting Standards. In July 2015, FASB delayed the effective date for one year.  We have substantially completed evaluating all of our sources of revenue to determine the potential effect on our financial position, results of operations, cash flows and the related accounting policies and business processes.  We continue to monitor accounting task forces and the FASB for additional implementation guidance related to: (1)  the accounting for funds received from third parties to partially or fully reimburse the cost of construction of an asset; (2) the evaluation of collectability from customers if a utility has regulatory mechanisms to help assure recovery of uncollected accounts from ratepayers; and (3) the accounting for alternative revenue programs, such as performance-based ratemaking and weather normalization, that may impact the final conclusions of our evaluation.  Until these items are resolved, we cannot complete our evaluation of the potential effect the new guidance will have on our financial position,  results of operations, cash flows, business processes or the transition method we will utilize to adopt the new guidance.  We will adopt this new guidance for our interim and annual reports beginning with the first quarter 2018.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
	<us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock contextRef="FD2017Q1YTD" id="Fact-95F0B29FFFA32BCED36BD2B845B0BA47">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;8.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;EMPLOYEE BENEFIT PLANS&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following tables set forth the components of net periodic benefit cost for our pension and other postemployment benefit plans for the periods indicated:&lt;/font&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="7" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:68%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Pension Benefits&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Components of net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;3,044&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;3,014&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Interest cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;10,113&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;11,387&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Expected return on assets&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(14,624&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(15,296&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,027&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,886&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;7,560&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;7,991&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="7" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:68%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Other Postemployment Benefits&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Components of net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;627&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;638&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Interest cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2,472&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;2,627&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Expected return on assets&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(3,147&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(3,071&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of unrecognized prior service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,149&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(908&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1,621&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1,151&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;424&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;437&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We recover qualified pension benefit plan and other postemployment benefit plan costs through rates charged to our customers.  Certain utility commissions require that the recovery of these costs be based on specific guidelines.  The difference between these regulatory-based amounts and the periodic benefit cost calculated pursuant to GAAP is deferred as a regulatory asset or liability and amortized to expense over periods in which this difference will be recovered in rates, as authorized by the applicable utility commission.  Regulatory deferrals related to net periodic benefit cost were not material for the&amp;#160;three months ended&amp;#160;March 31, 2017.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock>
	<us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock contextRef="FD2017Q1YTD" id="Fact-19BDC4A11F5B8DA5A736D2B845AF57AE">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our Statements of Income for the periods indicated:&lt;/font&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.484375%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="10" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:47%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:12%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:12%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:23%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Details about Accumulated Other Comprehensive&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Affected Line Item in the&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#160;Income (Loss) Components&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#160;Statements of Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and other postemployment benefit plan obligations (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;10,648&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;10,037&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of unrecognized prior service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,149&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(908&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,499&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;9,129&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Regulatory adjustments (b)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(9,290&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(8,941&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;209&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;188&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Income before income taxes&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(80&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(72&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Income tax expense&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total reclassifications for the period&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;129&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;116&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost. See Note 8 for additional detail of our net periodic benefit cost&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(b) Regulatory adjustments represent pension and other postemployment benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.  See Note 2 for additional disclosures of regulatory assets and liabilities.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock>
	<us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="FD2017Q1YTD" id="Fact-27F008BD65375309DC03D2B845A38029">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="11" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:62%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:11%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended March 31, 2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Shares&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Per Share&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Amount&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands, except per share amounts&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Basic EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;76,456&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;52,576&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1.45&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Diluted EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Effect of dilutive securities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;480&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock and common stock equivalents&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;76,456&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;53,056&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1.44&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="11" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:62%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:11%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:10%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended March 31, 2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Income&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Shares&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Per Share&lt;/font&gt;&lt;/div&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Amount&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands, except per share amounts&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Basic EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;64,743&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;52,519&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1.23&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Diluted EPS Calculation&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Effect of dilutive securities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;588&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net income available for common stock and common stock equivalents&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;64,743&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;53,107&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1.22&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
	<us-gaap:ScheduleOfNetBenefitCostsTableTextBlock contextRef="FD2017Q1YTD" id="Fact-127F389EFA25B1D6D134D2B84525111C">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The following tables set forth the components of net periodic benefit cost for our pension and other postemployment benefit plans for the periods indicated:&lt;/font&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="7" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:68%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Pension Benefits&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Components of net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;3,044&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;3,014&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Interest cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;10,113&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;11,387&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Expected return on assets&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(14,624&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(15,296&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,027&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,886&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;7,560&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;7,991&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="7" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:68%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Other Postemployment Benefits&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Three Months Ended&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31,&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Components of net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;627&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;638&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Interest cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;2,472&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;2,627&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Expected return on assets&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(3,147&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(3,071&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of unrecognized prior service cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,149&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(908&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Amortization of net loss&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;1,621&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;1,151&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net periodic benefit cost&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;424&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;437&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ScheduleOfNetBenefitCostsTableTextBlock>
	<us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock contextRef="FD2017Q1YTD" id="Fact-6D507AE57FE446AC7FA0D2B8453E170B">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;2.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;REGULATORY ASSETS AND LIABILITIES&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The tables below present a summary of regulatory assets, net of amortization, and liabilities for the periods indicated:&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="15" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:54%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:8%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;March 31, 2017&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Current&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Noncurrent&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Total&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Under-recovered purchased-gas costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;17,914&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;17,914&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and postemployment benefit costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;32,110&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;417,402&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;449,512&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Weather normalization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;19,781&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;19,781&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Reacquired debt costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;812&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;7,906&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;8,718&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Other&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;4,019&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;5,030&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;9,049&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory assets, net of amortization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;74,636&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;430,338&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;504,974&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Over-recovered purchased-gas costs (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(12,838&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(12,838&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Ad valorem tax (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,142&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(1,142&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory liabilities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(13,980&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;(13,980&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net regulatory assets (liabilities)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;60,656&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;430,338&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;490,994&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(a) Included in other current liabilities in our Balance Sheets.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:center;font-size:10pt;"&gt;&lt;div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"&gt;&lt;tr&gt;&lt;td colspan="15" rowspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="width:54%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:14%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:8%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:7%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td style="width:1%;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;December 31, 2016&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Current&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Noncurrent&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Total&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;(&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;"&gt;Thousands of dollars&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;text-align:center;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Under-recovered purchased-gas costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;29,901&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;29,901&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Pension and postemployment benefit costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;31,498&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;427,448&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;458,946&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Weather normalization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;17,661&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;17,661&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Reacquired debt costs&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;812&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,108&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,920&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Other&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;3,274&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;4,966&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;8,240&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory assets, net of amortization&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;83,146&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;440,522&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;523,668&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Over-recovered purchased-gas costs (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:center;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(10,154&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(10,154&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Ad valorem tax (a)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(1,768&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(1,768&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Total regulatory liabilities&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(11,922&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&amp;#8212;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(11,922&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;Net regulatory assets (liabilities)&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;71,224&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;440,522&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"&gt;&lt;div style="overflow:hidden;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;$&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:right;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;511,746&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"&gt;&lt;div style="text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;(a) Included in other current liabilities in our Balance Sheets.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Regulatory assets on our Balance Sheets, as authorized by various regulatory authorities, are probable of recovery.  Base rates are designed to provide a recovery of costs during the period rates are in effect, but do not generally provide for a return on investment for amounts we have deferred as regulatory assets.  All of our regulatory assets are subject to review by the respective regulatory authorities during future regulatory proceedings.  We are not aware of any evidence that these costs will not be recoverable through either riders or base rates, and we believe that we will be able to recover such costs, consistent with our historical recoveries.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock>
	<us-gaap:SegmentReportingPolicyPolicyTextBlock contextRef="FD2017Q1YTD" id="Fact-A37ABAAD08E0A80F371AD2B8452BDD6B">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Segments &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;- We operate in one reportable and operating business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.  The accounting policies for our segment are the same as described in Note 1 of our Notes to the Financial Statements in our Annual Report.  We evaluate our financial performance principally on operating income.  For the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, we had no single external customer from which we received 10 percent or more of our gross revenues.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:SegmentReportingPolicyPolicyTextBlock>
	<us-gaap:ShortTermDebtTextBlock contextRef="FD2017Q1YTD" id="Fact-2214BF31EE103F5642EED2B84533A81A">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;3.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;CREDIT FACILITY AND SHORT-TERM NOTES PAYABLE&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The ONE Gas Credit Agreement contains certain financial, operational and legal covenants.  Among other things, these covenants include maintaining ONE Gas&amp;#8217; debt-to-capital ratio of no more than &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;70 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; at the end of any calendar quarter.  At &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, our debt-to-capital ratio was &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;40 percent&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; and we were in compliance with all covenants under the ONE Gas Credit Agreement.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We have a commercial paper program under which we may issue unsecured commercial paper up to a maximum amount of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$700 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; to fund short-term borrowing needs.  The maturities of the commercial paper notes may vary but may not exceed &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;270&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; days from the date of issue.  The commercial paper notes are generally sold at par less a discount representing an interest factor.  &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;The ONE Gas Credit Agreement is available to repay the commercial paper notes, if necessary.  Amounts outstanding under the commercial paper program reduce the borrowing capacity under the ONE Gas Credit Agreement.  At &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, we had &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$85.4 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; in short-term borrowings, &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$1.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; in letters of credit issued under the ONE Gas Credit Agreement and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$612.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of remaining credit available under the ONE Gas Credit Agreement.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ShortTermDebtTextBlock>
	<us-gaap:SignificantAccountingPoliciesTextBlock contextRef="FD2017Q1YTD" id="Fact-8EF2305D69E01761CDC9D2B8452DCC23">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;1.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;Our accompanying unaudited financial statements have been prepared pursuant to the rules and regulations of the SEC.  These statements also have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented.  All such adjustments are of a normal recurring nature.  The &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; year-end balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP.  These unaudited financial statements should be read in conjunction with the audited financial statements and footnotes in our Annual Report.  Due to the seasonal nature of our business, the results of operations for the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, are not necessarily indicative of the results that may be expected for a 12-month period.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We provide natural gas distribution services to more than &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; customers through our divisions in Oklahoma, Kansas and Texas through Oklahoma Natural Gas, Kansas Gas Service and Texas Gas Service, respectively.  We serve residential, commercial, industrial and transportation customers in all three states.  In addition, we also provide natural gas distribution services to wholesale and public authority customers.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Use of Estimates&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provision for doubtful accounts, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances.  Nevertheless, actual results may differ significantly from the estimates.  Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Segments &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;- We operate in one reportable and operating business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.  The accounting policies for our segment are the same as described in Note 1 of our Notes to the Financial Statements in our Annual Report.  We evaluate our financial performance principally on operating income.  For the &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;three&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; months ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;March&amp;#160;31, 2017&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;2016&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;, we had no single external customer from which we received 10 percent or more of our gross revenues.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Recently Issued Accounting Standards Update&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;- In March 2017, the FASB issued ASU 2017-07, &amp;#8220;Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,&amp;#8221; which requires (1) separation of net periodic service costs for pension and other postemployment benefits into service cost and other components, (2) presentation of the service cost component in the same line as other compensation costs rendered by pertinent employees during the period, which will be the only portion of benefit cost eligible for capitalization and (3) reporting the other components of net periodic benefit costs separately from the service cost component and outside a subtotal of income from operations.&amp;#160; We are evaluating the impact of this guidance, which is required to be adopted for our interim and annual reports for periods beginning after December 15, 2017, and early adoption is permitted.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In January 2017, the FASB issued ASU 2017-04, &amp;#8220;Intangibles - Goodwill and Other (Topic 350):  Simplifying the Test for Goodwill Impairment,&amp;#8221; which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 of the goodwill test, where the measurement of a goodwill impairment loss was determined by comparing the implied fair value of a reporting unit&amp;#8217;s goodwill with the carrying amount of that goodwill.  Upon adoption, a goodwill impairment will be the amount by which a reporting unit&amp;#8217;s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.&amp;#160; This new guidance is required for our interim and annual reports for periods beginning after December 15, 2019, and early adoption is permitted.  We do not expect this guidance to have a material impact on our financial statements and will adjust our goodwill testing procedures accordingly upon adoption.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In March 2016, the FASB issued ASU 2016-09, &amp;#8220;Improvements to Employee Share-Based Payment Accounting,&amp;#8221; which includes various new aspects to simplify how share-based payments are accounted for and presented in the financial statements. The new standard modifies several aspects of the accounting and reporting for employee share-based payments and related tax accounting impacts, including the presentation in the statements of operations and cash flows.  We adopted this new guidance in the current quarter, and in accordance with the transition requirements, we recorded &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$5.2 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; of excess tax benefits in income tax expense and will transition all provisions of this new guidance prospectively, other than our presentation of our withholding shares for tax-withholding purposes, which will be accounted for retrospectively in the financing activities section of the statement of cash flows.  We recorded a noncash cumulative-effect increase of&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$11.0 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;to retained earnings, with an offset to a deferred tax asset, as of the beginning of the reporting period in 2017, for excess tax benefits earned prior to January 1, 2017, that had not been recognized. We continue our use of the estimation method to account for share unit awards forfeitures rather than actual forfeitures. The retrospective impact of our withholding shares for tax-withholding purposes to our Statement of Cash Flows for the three months ended March 31, 2016, was a&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$8.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;increase to net cash provided by operating activities and a&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$8.8 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;decrease to net cash used in financing activities.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In February 2016, the FASB issued ASU 2016-02, &amp;#8220;Leases (Topic 842),&amp;#8221; which prescribes recognizing lease assets and liabilities on the balance sheet and includes disclosure of key information about leasing arrangements.  &amp;#160;A modified retrospective transition approach is required for leases existing at the time of adoption.  We are evaluating our population of leases, analyzing lease agreements, and holding meetings with cross-functional teams to determine the potential impact of this accounting standard on our financial position and results of operations and the transition approach we will utilize.  This new guidance is required for our interim and annual reports for periods beginning after December 15, 2018, and early adoption is permitted.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In May 2014, the FASB issued ASU 2014-09, &amp;#8220;Revenue from Contracts with Customers,&amp;#8221; which clarifies and converges the revenue recognition principles under GAAP and International Financial Reporting Standards. In July 2015, FASB delayed the effective date for one year.  We have substantially completed evaluating all of our sources of revenue to determine the potential effect on our financial position, results of operations, cash flows and the related accounting policies and business processes.  We continue to monitor accounting task forces and the FASB for additional implementation guidance related to: (1)  the accounting for funds received from third parties to partially or fully reimburse the cost of construction of an asset; (2) the evaluation of collectability from customers if a utility has regulatory mechanisms to help assure recovery of uncollected accounts from ratepayers; and (3) the accounting for alternative revenue programs, such as performance-based ratemaking and weather normalization, that may impact the final conclusions of our evaluation.  Until these items are resolved, we cannot complete our evaluation of the potential effect the new guidance will have on our financial position,  results of operations, cash flows, business processes or the transition method we will utilize to adopt the new guidance.  We will adopt this new guidance for our interim and annual reports beginning with the first quarter 2018.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:SignificantAccountingPoliciesTextBlock>
	<us-gaap:StockholdersEquityNoteDisclosureTextBlock contextRef="FD2017Q1YTD" id="Fact-0B2B5C749BBD1F85F0AAD2B845A178F6">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"&gt;&lt;tr&gt;&lt;td style="width:48px;" rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;td rowspan="1" colspan="1"&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;font-size:10pt;padding-left:0px;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;5.&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="vertical-align:top;" rowspan="1" colspan="1"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;EQUITY&lt;/font&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Treasury Shares&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;- In the first quarter of 2017, we repurchased approximately&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;37 thousand&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&amp;#160;shares of our common stock for approximately&amp;#160;&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$2.5 million&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Dividends Declared - &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;In May 2017, we declared a dividend of &lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$0.42&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; per share (&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;$1.68&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; per share on an annualized basis) for shareholders of record as of May 15, 2017, payable June 1, 2017.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:StockholdersEquityNoteDisclosureTextBlock>
	<us-gaap:UseOfEstimates contextRef="FD2017Q1YTD" id="Fact-91D7994373661E432EB9D2B845295350">&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;font-weight:bold;"&gt;Use of Estimates&lt;/font&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt; - The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provision for doubtful accounts, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:10pt;"&gt;&lt;font style="font-family:inherit;font-size:10pt;"&gt;We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances.  Nevertheless, actual results may differ significantly from the estimates.  Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:UseOfEstimates>
	<link:footnoteLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
	</link:footnoteLink>
</xbrli:xbrl>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>7
<FILENAME>ogs-20170331.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.onegas.com/20170331" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:ogs="http://www.onegas.com/20170331" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2015-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2015-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2015/elts/us-roles-2015-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2015-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2015/elts/us-types-2015-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2013-01-31" schemaLocation="http://xbrl.sec.gov/country/2013/country-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2014-01-31" schemaLocation="http://xbrl.sec.gov/currency/2014/currency-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2015-01-31" schemaLocation="http://xbrl.sec.gov/exch/2015/exch-2015-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ogs-20170331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ogs-20170331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ogs-20170331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="ogs-20170331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossDetails" roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails">
        <link:definition>2422402 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossNotes" roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes">
        <link:definition>2122100 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeLossTables" roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables">
        <link:definition>2322301 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheets" roleURI="http://www.onegas.com/role/BalanceSheets">
        <link:definition>1004000 - Statement - BALANCE SHEETS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="BalanceSheetsBalanceSheetsParenthetical" roleURI="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical">
        <link:definition>1004001 - Statement - BALANCE SHEETS BALANCE SHEETS Parenthetical</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesDetails" roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesDetails">
        <link:definition>2425401 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingenciesNotes" roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesNotes">
        <link:definition>2125100 - Disclosure - COMMITMENTS AND CONTINGENCIES (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CreditFacilitiesDetails" roleURI="http://www.onegas.com/role/CreditFacilitiesDetails">
        <link:definition>2418401 - Disclosure - CREDIT FACILITIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CreditFacilitiesNotes" roleURI="http://www.onegas.com/role/CreditFacilitiesNotes">
        <link:definition>2118100 - Disclosure - CREDIT FACILITIES (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies">
        <link:definition>2226201 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails">
        <link:definition>2426402 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes">
        <link:definition>2126100 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.onegas.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document And Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareDetails" roleURI="http://www.onegas.com/role/EarningsPerShareDetails">
        <link:definition>2423402 - Disclosure - EARNINGS PER SHARE (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareNotes" roleURI="http://www.onegas.com/role/EarningsPerShareNotes">
        <link:definition>2123100 - Disclosure - EARNINGS PER SHARE (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EarningsPerShareTables" roleURI="http://www.onegas.com/role/EarningsPerShareTables">
        <link:definition>2323301 - Disclosure - EARNINGS PER SHARE (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlansDetails" roleURI="http://www.onegas.com/role/EmployeeBenefitPlansDetails">
        <link:definition>2424402 - Disclosure - EMPLOYEE BENEFIT PLANS (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlansNotes" roleURI="http://www.onegas.com/role/EmployeeBenefitPlansNotes">
        <link:definition>2124100 - Disclosure - EMPLOYEE BENEFIT PLANS (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeBenefitPlansTables" roleURI="http://www.onegas.com/role/EmployeeBenefitPlansTables">
        <link:definition>2324301 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityDetails" roleURI="http://www.onegas.com/role/EquityDetails">
        <link:definition>2421401 - Disclosure - EQUITY (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EquityNotes" roleURI="http://www.onegas.com/role/EquityNotes">
        <link:definition>2121100 - Disclosure - EQUITY (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtDetails" roleURI="http://www.onegas.com/role/LongTermDebtDetails">
        <link:definition>2420401 - Disclosure - LONG-TERM DEBT (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LongTermDebtNotes" roleURI="http://www.onegas.com/role/LongTermDebtNotes">
        <link:definition>2120100 - Disclosure - LONG-TERM DEBT (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryAssetsAndLiabilitiesDetails" roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails">
        <link:definition>2405402 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryAssetsAndLiabilitiesNotes" roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes">
        <link:definition>2105100 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="RegulatoryAssetsAndLiabilitiesTables" roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables">
        <link:definition>2305301 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementOfChangesInEquity" roleURI="http://www.onegas.com/role/StatementOfChangesInEquity">
        <link:definition>1006000 - Statement - STATEMENT OF CHANGES IN EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsOfCashFlows" roleURI="http://www.onegas.com/role/StatementsOfCashFlows">
        <link:definition>1005000 - Statement - STATEMENTS OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome">
        <link:definition>1003500 - Statement - STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical">
        <link:definition>1003001 - Statement - STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME Parenthetical</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="StatementsOfIncome" roleURI="http://www.onegas.com/role/StatementsOfIncome">
        <link:definition>1001000 - Statement - STATEMENTS OF INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesDetails" roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails">
        <link:definition>2401402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesNotes" roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes">
        <link:definition>2101100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  (Notes)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SummaryOfSignificantAccountingPoliciesPolicies" roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>2201201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" name="ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_AdvaloremtaxMember" name="AdvaloremtaxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_AveragesharesAbstract" name="AveragesharesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_BasicEPSCalculationAbstract" name="BasicEPSCalculationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_CREDITFACILITIESAbstract" name="CREDITFACILITIESAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_Commercialpapermaximumborrowingcapacity" name="Commercialpapermaximumborrowingcapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_CommitmentsandContingenciesLineItems" name="CommitmentsandContingenciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_CommitmentsandContingenciesTable" name="CommitmentsandContingenciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_CommonStockDividendsDeclaredAnnualizedBasis" name="CommonStockDividendsDeclaredAnnualizedBasis" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_ComponentsofnetperiodicbenefitcostAbstract" name="ComponentsofnetperiodicbenefitcostAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract" name="DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_DerivativesandFairValueMeasurementAbstract" name="DerivativesandFairValueMeasurementAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_DilutedEPSCalculationAbstract" name="DilutedEPSCalculationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" name="EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" name="EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_EnvironmentalReserveEstimateActual" name="EnvironmentalReserveEstimateActual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_EnvironmentalReserveEstimateRangeHigh" name="EnvironmentalReserveEstimateRangeHigh" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_EnvironmentalReserveEstimateRangeLow" name="EnvironmentalReserveEstimateRangeLow" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_FairValueAssetsTransfersbetweenLevels" name="FairValueAssetsTransfersbetweenLevels" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ogs_Fairvaluenaturalgascalloptions" name="Fairvaluenaturalgascalloptions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ogs_InvestmentsAndOtherAssetsAbstract" name="InvestmentsAndOtherAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_Netregulatoryassetsandliabilitiescurrent" name="Netregulatoryassetsandliabilitiescurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="ogs_Netregulatoryassetsandliabilitiesnoncurrent" name="Netregulatoryassetsandliabilitiesnoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ogs_NotePayableDue2019Member" name="NotePayableDue2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_NotePayableDue2024Member" name="NotePayableDue2024Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_NotesPayableDue2044Member" name="NotesPayableDue2044Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions" name="NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_NumberOfNaturalGasDistributionServicesCustomers" name="NumberOfNaturalGasDistributionServicesCustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion" name="NumberOfSitesSoilRemediationIsCompletedOrNearCompletion" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved" name="NumberOfSitesWhereRegulatoryClosureHasBeenAchieved" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_Numberofsiteswithongoinggroundwatermonitoring" name="Numberofsiteswithongoinggroundwatermonitoring" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_OperatingLossCarryforwardsTaxBenefit" name="OperatingLossCarryforwardsTaxBenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments" name="OthercomprehensiveincomelossreclassificationRegulatoryadjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments" name="Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_OtherregulatoryassetsMember" name="OtherregulatoryassetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_OverrecoveredpurchasedgascostsMember" name="OverrecoveredpurchasedgascostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_Percentageyieldofhighconsequencepipelineareas" name="Percentageyieldofhighconsequencepipelineareas" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld" name="Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ogs_RegulatoryAssetsandLiabilitiesAbstract" name="RegulatoryAssetsandLiabilitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_RegulatoryAssetsandLiabilitiesAxis" name="RegulatoryAssetsandLiabilitiesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_RegulatoryAssetsandLiabilitiesDomain" name="RegulatoryAssetsandLiabilitiesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" name="SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" name="SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock" name="SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract" name="STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_SignificantAccountingPoliciesLineItems" name="SignificantAccountingPoliciesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_SignificantAccountingPoliciesTable" name="SignificantAccountingPoliciesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="ogs_TotalDeferredCreditsAndOtherLiabilities" name="TotalDeferredCreditsAndOtherLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="ogs_Totalgoodwillandotherassets" name="Totalgoodwillandotherassets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="ogs_TotalregulatedliabilitiesMember" name="TotalregulatedliabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_TotalregulatoryassetsnetofamortizationMember" name="TotalregulatoryassetsnetofamortizationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_UnderrecoveredpurchasedgascostsMember" name="UnderrecoveredpurchasedgascostsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="ogs_WeathernormalizationMember" name="WeathernormalizationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>8
<FILENAME>ogs-20170331_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheets" xlink:href="ogs-20170331.xsd#BalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:href="ogs-20170331.xsd#BalanceSheetsBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:href="ogs-20170331.xsd#CreditFacilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:href="ogs-20170331.xsd#CreditFacilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:href="ogs-20170331.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareDetails" xlink:href="ogs-20170331.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareNotes" xlink:href="ogs-20170331.xsd#EarningsPerShareNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareTables" xlink:href="ogs-20170331.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityDetails" xlink:href="ogs-20170331.xsd#EquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityNotes" xlink:href="ogs-20170331.xsd#EquityNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtDetails" xlink:href="ogs-20170331.xsd#LongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtNotes" xlink:href="ogs-20170331.xsd#LongTermDebtNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:href="ogs-20170331.xsd#StatementOfChangesInEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfCashFlows" xlink:href="ogs-20170331.xsd#StatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfIncome" xlink:href="ogs-20170331.xsd#StatementsOfIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/BalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquity" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquity_1b10720c-1c8c-419b-719f-46c7fd3f3947" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquity_1b10720c-1c8c-419b-719f-46c7fd3f3947" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquity_1b10720c-1c8c-419b-719f-46c7fd3f3947" xlink:to="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_ce40a301-9b6b-9fc3-bfb6-dfbb8fcdf29b" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_CommonStockValue_ce40a301-9b6b-9fc3-bfb6-dfbb8fcdf29b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_9158c8ad-1189-2464-9c41-553e6a22df6c" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_AdditionalPaidInCapital_9158c8ad-1189-2464-9c41-553e6a22df6c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_dd6b7206-c19f-4dd5-339b-1369c57cfe0f" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_dd6b7206-c19f-4dd5-339b-1369c57cfe0f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1d565cd0-d7bf-de89-4dbe-a484007b1fe8" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_1d565cd0-d7bf-de89-4dbe-a484007b1fe8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_0b2a392d-b5d5-0c30-4a0c-bcaab86d8160" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_d0f349aa-18e3-6323-86ad-665f8773c064" xlink:to="loc_us-gaap_TreasuryStockValue_0b2a392d-b5d5-0c30-4a0c-bcaab86d8160" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_fe891e5b-d2af-f798-198f-f728ce0375a1" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquity_1b10720c-1c8c-419b-719f-46c7fd3f3947" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_fe891e5b-d2af-f798-198f-f728ce0375a1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_c400a7b2-a29c-41bd-c9cb-97a8fa51e961" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_CommercialPaper_c400a7b2-a29c-41bd-c9cb-97a8fa51e961" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_22caddf9-3843-6329-6e39-dc458323b572" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccountsPayableCurrent_22caddf9-3843-6329-6e39-dc458323b572" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_bc8e6e7a-e533-790a-96f1-95683a04ac7e" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_InterestPayableCurrent_bc8e6e7a-e533-790a-96f1-95683a04ac7e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_3037b9ee-06f9-db9d-20f6-4db3fc45dedd" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_3037b9ee-06f9-db9d-20f6-4db3fc45dedd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_eaf92fb1-642d-2c65-5ba7-1a63a3697f47" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CustomerDepositsCurrent" xlink:label="loc_us-gaap_CustomerDepositsCurrent_347ca83b-a43d-5c2b-6bcd-5ac2a214310c" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_CustomerDepositsCurrent_347ca83b-a43d-5c2b-6bcd-5ac2a214310c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_c18006cb-aa31-4ec7-1b61-6ea782db626c" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_c18006cb-aa31-4ec7-1b61-6ea782db626c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_0d8009a1-9f3a-b52e-6afc-03d7b3b4df06" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_1de50dbc-01a9-6657-f83f-d1e74edfdf18" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_0d8009a1-9f3a-b52e-6afc-03d7b3b4df06" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalDeferredCreditsAndOtherLiabilities" xlink:label="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_0666636b-9e73-cac4-af02-ddac17d745b3" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_4a314f0d-c6fa-5cf2-0be1-add747465af3" xlink:to="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_0666636b-9e73-cac4-af02-ddac17d745b3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_d3900b70-6aae-8c94-5a39-4a06f81c5d62" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_0666636b-9e73-cac4-af02-ddac17d745b3" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_d3900b70-6aae-8c94-5a39-4a06f81c5d62" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_7abbf80c-657f-8eba-6e28-225b9514ba8f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_0666636b-9e73-cac4-af02-ddac17d745b3" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_7abbf80c-657f-8eba-6e28-225b9514ba8f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_7f5c7cfd-4659-429c-35ab-266d67961421" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_0666636b-9e73-cac4-af02-ddac17d745b3" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_7f5c7cfd-4659-429c-35ab-266d67961421" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_4b63d130-10d8-ccbd-255b-ae3f02b64c4d" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_4b63d130-10d8-ccbd-255b-ae3f02b64c4d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_f7c295f1-1f4f-62e5-57d1-4f94dff10c60" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_4b63d130-10d8-ccbd-255b-ae3f02b64c4d" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_f7c295f1-1f4f-62e5-57d1-4f94dff10c60" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_14391c76-69c8-c52e-028f-4285aaf54706" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_4b63d130-10d8-ccbd-255b-ae3f02b64c4d" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_14391c76-69c8-c52e-028f-4285aaf54706" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_cd34decb-53b6-e0a9-28d5-0a9741c4b0f8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_cd34decb-53b6-e0a9-28d5-0a9741c4b0f8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_a68159ca-ec68-f2ab-15db-a26e97e8e259" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_ReceivablesNetCurrent_a68159ca-ec68-f2ab-15db-a26e97e8e259" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaterialsSuppliesAndOther" xlink:label="loc_us-gaap_MaterialsSuppliesAndOther_a1aa4299-f603-6537-ca8a-34305e581560" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_MaterialsSuppliesAndOther_a1aa4299-f603-6537-ca8a-34305e581560" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesInventory" xlink:label="loc_us-gaap_PublicUtilitiesInventory_142a5287-69d5-1cad-40d3-4c5e812cbb34" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_PublicUtilitiesInventory_142a5287-69d5-1cad-40d3-4c5e812cbb34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_2018389b-7cf7-14ec-4600-1a1cb9f501dc" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_2018389b-7cf7-14ec-4600-1a1cb9f501dc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_33278e4f-d71c-924a-f185-bd5aaa288d0b" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_39eaeb62-7ee3-5503-48f5-08c2dff05e50" xlink:to="loc_us-gaap_OtherAssetsCurrent_33278e4f-d71c-924a-f185-bd5aaa288d0b" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Totalgoodwillandotherassets" xlink:label="loc_ogs_Totalgoodwillandotherassets_841703cc-2706-e34a-134b-ddac17e6f2d9" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_effc14df-fd72-eec8-ede9-64e0071b91bc" xlink:to="loc_ogs_Totalgoodwillandotherassets_841703cc-2706-e34a-134b-ddac17e6f2d9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_5ed31d91-0f46-ac43-c07e-ff70017b494d" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_Totalgoodwillandotherassets_841703cc-2706-e34a-134b-ddac17e6f2d9" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_5ed31d91-0f46-ac43-c07e-ff70017b494d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_b108d604-1348-4e65-3817-2944b734c65a" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_Totalgoodwillandotherassets_841703cc-2706-e34a-134b-ddac17e6f2d9" xlink:to="loc_us-gaap_Goodwill_b108d604-1348-4e65-3817-2944b734c65a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_9b98e689-e6db-3e5b-e5c3-3324fffb4edf" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_ogs_Totalgoodwillandotherassets_841703cc-2706-e34a-134b-ddac17e6f2d9" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_9b98e689-e6db-3e5b-e5c3-3324fffb4edf" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EarningsPerShareDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EarningsPerShareNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EarningsPerShareTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_966abc5a-0aea-5fe8-d8a1-9e044afb9784" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_966abc5a-0aea-5fe8-d8a1-9e044afb9784" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_6183ad76-cfec-d832-340d-85dc815112da" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_6183ad76-cfec-d832-340d-85dc815112da" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_313a5f98-4635-6c34-4024-f94b2c5b9063" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_313a5f98-4635-6c34-4024-f94b2c5b9063" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2b770c62-b0fb-c708-98e5-41278be9cb84" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_2ec65622-4890-2364-d89a-c6403a1d04a9" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_ba702cef-8d4b-17f2-0b31-74e9eb092d82" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EquityDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/EquityNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/LongTermDebtDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/LongTermDebtNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/StatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_2237a259-b574-685e-1b40-2d00316591e7" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_2237a259-b574-685e-1b40-2d00316591e7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_4c2e87e5-41d0-b35b-6dfd-e3ab5b253709" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_4c2e87e5-41d0-b35b-6dfd-e3ab5b253709" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_5b0f2507-08ae-f801-3f6d-c08e20fbe336" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_PaymentsOfDividends_5b0f2507-08ae-f801-3f6d-c08e20fbe336" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9dbeb004-67a9-1b19-c357-8b5cbf0013ee" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_a678c20d-a481-ef6a-800a-4bd566075d81" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_9dbeb004-67a9-1b19-c357-8b5cbf0013ee" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_386292ff-155c-0309-455a-2b91b395b3da" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_386292ff-155c-0309-455a-2b91b395b3da" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0ff68e79-9d67-8dd3-0a29-1b2e1239e793" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_58a5bd26-e5f4-de8f-6118-f713733148b8" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_0ff68e79-9d67-8dd3-0a29-1b2e1239e793" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_ff5db18e-7b91-5a5d-e914-0527b02a8012" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ca34a3fb-45a5-413d-1baa-7130692c92e7" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ca34a3fb-45a5-413d-1baa-7130692c92e7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_8b437d2d-6bbf-1f71-a341-6d3ac2b36703" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_8b437d2d-6bbf-1f71-a341-6d3ac2b36703" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_d4c99b59-c44a-c4ac-309f-0bddfdb944a5" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_ShareBasedCompensation_d4c99b59-c44a-c4ac-309f-0bddfdb944a5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_030f5c40-af7e-2a00-2417-01509e80b7e6" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_030f5c40-af7e-2a00-2417-01509e80b7e6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_4391e4f4-3499-979b-e262-a80a89737c45" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_4391e4f4-3499-979b-e262-a80a89737c45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInMaterialsAndSupplies" xlink:label="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_0e3d93b3-b672-4f92-fa08-ba868f82715d" xlink:type="locator" />
    <link:calculationArc order="7" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_0e3d93b3-b672-4f92-fa08-ba868f82715d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_3ff65e37-c503-2de0-647e-72ee386da3f1" xlink:type="locator" />
    <link:calculationArc order="8" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_3ff65e37-c503-2de0-647e-72ee386da3f1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_59947135-2495-391e-9e35-ed6effebb894" xlink:type="locator" />
    <link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_59947135-2495-391e-9e35-ed6effebb894" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRemovalCosts" xlink:label="loc_us-gaap_PaymentsForRemovalCosts_0389fe01-5b5f-5af6-2455-7f94cd2a3cb9" xlink:type="locator" />
    <link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_PaymentsForRemovalCosts_0389fe01-5b5f-5af6-2455-7f94cd2a3cb9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_a167e25c-e8b1-aeb8-f355-3727e3f06f3e" xlink:type="locator" />
    <link:calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_a167e25c-e8b1-aeb8-f355-3727e3f06f3e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_e7cb7898-cace-2c6a-bc15-8e55c5ab7532" xlink:type="locator" />
    <link:calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_e7cb7898-cace-2c6a-bc15-8e55c5ab7532" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_bc84fc0d-bdb6-6ef9-03cb-09725da89aa5" xlink:type="locator" />
    <link:calculationArc order="13" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_bc84fc0d-bdb6-6ef9-03cb-09725da89aa5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1ea297cc-8653-7155-6fa9-a3af7df49950" xlink:type="locator" />
    <link:calculationArc order="14" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_1ea297cc-8653-7155-6fa9-a3af7df49950" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_b884cda2-f704-4c56-690a-bf533a95209d" xlink:type="locator" />
    <link:calculationArc order="15" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_b884cda2-f704-4c56-690a-bf533a95209d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_157bbcee-6c6b-328d-b2fc-697d33af53cb" xlink:type="locator" />
    <link:calculationArc order="16" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_157bbcee-6c6b-328d-b2fc-697d33af53cb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_bfab8b08-4541-18e9-28b5-5802fef422a3" xlink:type="locator" />
    <link:calculationArc order="17" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_916e1eb7-21fa-e5f0-a15f-0b05ed633776" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_bfab8b08-4541-18e9-28b5-5802fef422a3" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/StatementsOfIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_8d3aa4ad-dbea-9eba-4578-5d3b83ba3bc6" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_InterestExpense_8d3aa4ad-dbea-9eba-4578-5d3b83ba3bc6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense_7467c3e0-e95b-0f3b-5a94-8f46ddf79df3" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_OtherNonoperatingExpense_7467c3e0-e95b-0f3b-5a94-8f46ddf79df3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome_366feee8-d200-1caa-62ae-b81686cc7093" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_OtherNonoperatingIncome_366feee8-d200-1caa-62ae-b81686cc7093" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_2c8c6c89-9465-bb81-ea21-29a749a3199b" xlink:to="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:to="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatedOperatingRevenueGas" xlink:label="loc_us-gaap_RegulatedOperatingRevenueGas_c2987bcd-c1f8-a64c-cd03-279ba4aef4a0" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:to="loc_us-gaap_RegulatedOperatingRevenueGas_c2987bcd-c1f8-a64c-cd03-279ba4aef4a0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_3e4f59ee-a8b6-f7b9-0290-eec9493f72bb" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GrossProfit_ae720951-4a78-255d-8bd1-88ff26a27caf" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_3e4f59ee-a8b6-f7b9-0290-eec9493f72bb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_219c79fa-66f5-8fcf-5c71-b35b5d0ef001" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_0ea1551e-1643-5e21-4c6e-6431fd87aa68" xlink:to="loc_us-gaap_UtilitiesOperatingExpense_219c79fa-66f5-8fcf-5c71-b35b5d0ef001" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ca34a3fb-45a5-413d-1baa-7130692c92e7" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_219c79fa-66f5-8fcf-5c71-b35b5d0ef001" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ca34a3fb-45a5-413d-1baa-7130692c92e7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_843c92a9-1685-554c-8e4f-2027269b8911" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_219c79fa-66f5-8fcf-5c71-b35b5d0ef001" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseTaxes_843c92a9-1685-554c-8e4f-2027269b8911" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_e17b33e5-7ac3-016c-35e5-9a0508c32916" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_219c79fa-66f5-8fcf-5c71-b35b5d0ef001" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_e17b33e5-7ac3-016c-35e5-9a0508c32916" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_b8dcf191-083d-828d-7b9f-e2d2969b89f4" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_e62ce8b8-4401-2622-8598-3e644745e95e" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_b8dcf191-083d-828d-7b9f-e2d2969b89f4" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended" />
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>9
<FILENAME>ogs-20170331_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheets" xlink:href="ogs-20170331.xsd#BalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:href="ogs-20170331.xsd#BalanceSheetsBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:href="ogs-20170331.xsd#CreditFacilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:href="ogs-20170331.xsd#CreditFacilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:href="ogs-20170331.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareDetails" xlink:href="ogs-20170331.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareNotes" xlink:href="ogs-20170331.xsd#EarningsPerShareNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareTables" xlink:href="ogs-20170331.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityDetails" xlink:href="ogs-20170331.xsd#EquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityNotes" xlink:href="ogs-20170331.xsd#EquityNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtDetails" xlink:href="ogs-20170331.xsd#LongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtNotes" xlink:href="ogs-20170331.xsd#LongTermDebtNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:href="ogs-20170331.xsd#StatementOfChangesInEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfCashFlows" xlink:href="ogs-20170331.xsd#StatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfIncome" xlink:href="ogs-20170331.xsd#StatementsOfIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:to="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:to="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments" xlink:label="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments" xlink:label="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:to="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:to="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:to="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:to="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:to="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/BalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:to="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaterialsSuppliesAndOther" xlink:label="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesInventory" xlink:label="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_InvestmentsAndOtherAssetsAbstract" xlink:label="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Totalgoodwillandotherassets" xlink:label="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquityAbstract" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquity" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CustomerDepositsCurrent" xlink:label="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalDeferredCreditsAndOtherLiabilities" xlink:label="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:to="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:to="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:to="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtIssuanceCosts" xlink:label="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesLineItems" xlink:label="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesTable" xlink:label="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:to="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions" xlink:label="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion" xlink:label="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Numberofsiteswithongoinggroundwatermonitoring" xlink:label="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved" xlink:label="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeLow" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeHigh" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateActual" xlink:label="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Percentageyieldofhighconsequencepipelineareas" xlink:label="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesLineItems" xlink:label="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesTable" xlink:label="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:to="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:to="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:to="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:to="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:to="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_F813B195828FB81B0920A67442F6C11E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_DebtInstrumentCovenantDescription_F813B195828FB81B0920A67442F6C11E" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Commercialpapermaximumborrowingcapacity" xlink:label="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:to="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:to="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:to="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:to="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNonmonetaryNotionalAmount" xlink:label="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld" xlink:label="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Fairvaluenaturalgascalloptions" xlink:label="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_FairValueAssetsTransfersbetweenLevels" xlink:label="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:to="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationDocumentAxis" xlink:label="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:to="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentDomain" xlink:label="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:to="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentDomain" xlink:label="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:to="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:to="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_BasicEPSCalculationAbstract" xlink:label="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DilutedEPSCalculationAbstract" xlink:label="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DilutiveSecurities" xlink:label="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EarningsPerShareNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:to="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EarningsPerShareTables" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:to="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:to="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ComponentsofnetperiodicbenefitcostAbstract" xlink:label="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:to="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_E1CD98A65725683F51E0D2B84604EA9D" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_E1CD98A65725683F51E0D2B84604EA9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_28653DC67D73DF34956CD2B84604E11F" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_28653DC67D73DF34956CD2B84604E11F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:to="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:to="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EquityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:to="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:to="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommonStockDividendsDeclaredAnnualizedBasis" xlink:label="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/EquityNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:to="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:to="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:to="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:to="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/LongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2019Member" xlink:label="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2024Member" xlink:label="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotesPayableDue2044Member" xlink:label="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/LongTermDebtNotes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:to="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:to="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_UnderrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionCostsMember" xlink:label="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_WeathernormalizationMember" xlink:label="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossOnReacquiredDebtMember" xlink:label="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OtherregulatoryassetsMember" xlink:label="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatoryassetsnetofamortizationMember" xlink:label="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityAxis" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OverrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AdvaloremtaxMember" xlink:label="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatedliabilitiesMember" xlink:label="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_2A370E84AB19703CEE55A67443120ECF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:to="loc_us-gaap_SubsequentEventMember_2A370E84AB19703CEE55A67443120ECF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilities" xlink:label="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiescurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiesnoncurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetRegulatoryAssets" xlink:label="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:to="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:to="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAxis" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:to="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesDomain" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:to="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39_default" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesDomain" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:to="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:to="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:to="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_9FC3E5AD56E64AECF297B0330FAF0FAC" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_NetIncomeLoss_9FC3E5AD56E64AECF297B0330FAF0FAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/StatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:to="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_0AC5C267F6DA83F2AD0CA6672321CC9E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_NetIncomeLoss_0AC5C267F6DA83F2AD0CA6672321CC9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_195D6F08752CAC098F08A667232104C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_195D6F08752CAC098F08A667232104C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInMaterialsAndSupplies" xlink:label="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRemovalCosts" xlink:label="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:to="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.onegas.com/role/StatementsOfIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:to="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfitAbstract" xlink:label="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatedOperatingRevenueGas" xlink:label="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:to="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:to="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AveragesharesAbstract" xlink:label="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:to="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfNaturalGasDistributionServicesCustomers" xlink:label="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingDisclosureOfMajorCustomers" xlink:label="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation" xlink:label="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OperatingLossCarryforwardsTaxBenefit" xlink:label="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustment" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:to="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:to="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="arc" />
  </link:definitionLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.LAB
<SEQUENCE>10
<FILENAME>ogs-20170331_lab.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:to="lab_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:type="arc" />
    <link:label id="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1_terseLabel_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Table]</link:label>
    <link:label id="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1_label_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Table]</link:label>
    <link:label id="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1_documentation_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Significant accounting policies of the reporting entity.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:to="lab_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5_terseLabel_en-US" xlink:label="lab_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5_label_en-US" xlink:label="lab_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:to="lab_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7_terseLabel_en-US" xlink:label="lab_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Scenario, Unspecified [Domain]</link:label>
    <link:label id="lab_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7_label_en-US" xlink:label="lab_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario, Unspecified [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:to="lab_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="arc" />
    <link:label id="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34_terseLabel_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Line Items]</link:label>
    <link:label id="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34_label_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Line Items]</link:label>
    <link:label id="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34_documentation_en-US" xlink:label="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line items for Significant accounting policies of the reporting entity.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="lab_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:type="arc" />
    <link:label id="lab_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A_terseLabel_en-US" xlink:label="lab_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Use of Estimates</link:label>
    <link:label id="lab_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A_label_en-US" xlink:label="lab_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:to="lab_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments</link:label>
    <link:label id="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B_label_en-US" xlink:label="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:to="lab_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="arc" />
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recently Issued Accounting Standards Update</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:to="lab_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:type="arc" />
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63_terseLabel_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EARNINGS PER SHARE [Table]</link:label>
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63_label_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EARNINGS PER SHARE OF COMMON STOCK, BASIC AND DILUTED [Table]</link:label>
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63_documentation_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:to="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="arc" />
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E_terseLabel_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EARNINGS PER SHARE [Line Items]</link:label>
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E_label_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">EARNINGS PER SHARE OF COMMON STOCK, BASIC AND DILUTED [Line Items]</link:label>
    <link:label id="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E_documentation_en-US" xlink:label="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="lab_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:type="arc" />
    <link:label id="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1_terseLabel_en-US" xlink:label="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic EPS Calculation</link:label>
    <link:label id="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1_label_en-US" xlink:label="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic EPS Calculation [Abstract]</link:label>
    <link:label id="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1_documentation_en-US" xlink:label="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Basic EPS Calculation [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_BasicEPSCalculationAbstract" xlink:label="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="lab_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net income available for common stock</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:to="lab_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Basic</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:to="lab_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="arc" />
    <link:label id="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082_terseLabel_en-US" xlink:label="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted EPS Calculation</link:label>
    <link:label id="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082_label_en-US" xlink:label="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted EPS Calculation [Abstract]</link:label>
    <link:label id="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082_documentation_en-US" xlink:label="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Diluted EPS Calculation [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DilutedEPSCalculationAbstract" xlink:label="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="lab_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="arc" />
    <link:label id="lab_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503_terseLabel_en-US" xlink:label="lab_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of dilutive securities on income</link:label>
    <link:label id="lab_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503_label_en-US" xlink:label="lab_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dilutive Securities, Effect on Basic Earnings Per Share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DilutiveSecurities" xlink:label="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:to="lab_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of dilutive securities on shares</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number Diluted Shares Outstanding Adjustment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:to="lab_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:to="lab_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="arc" />
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0_label_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Abstract]</link:label>
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0_documentation_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAbstract" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:to="lab_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:type="arc" />
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F_terseLabel_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Table]</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F_label_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Table]</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F_documentation_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:to="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="arc" />
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF_terseLabel_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF_label_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF_documentation_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:to="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Regulatory Assets and Liabilities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Regulatory Assets and Liabilities [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:to="lab_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:type="arc" />
    <link:label id="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2_terseLabel_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies [Table]</link:label>
    <link:label id="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2_label_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies [Table]</link:label>
    <link:label id="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2_documentation_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of commitments and contingencies [Table]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesTable" xlink:label="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:to="lab_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="arc" />
    <link:label id="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229_terseLabel_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies [Line Items]</link:label>
    <link:label id="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229_label_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies [Line Items]</link:label>
    <link:label id="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229_documentation_en-US" xlink:label="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Disclosure of commitments and contingencies [Table]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesLineItems" xlink:label="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:to="lab_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5_verboseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">COMMITMENTS AND CONTINGENCIES</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="arc" />
    <link:label id="lab_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893_label_en-US" xlink:label="lab_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document and Entity Information [Abstract]</link:label>
    <link:label id="lab_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893_documentation_en-US" xlink:label="lab_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">4eba46a2-97a9-0056-c25c-d1cfa3a911f6</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DocumentAndEntityInformationAbstract" xlink:label="loc_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:to="lab_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:type="arc" />
    <link:label id="lab_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:label id="lab_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1_label_en-US" xlink:label="lab_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Table]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:to="lab_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="arc" />
    <link:label id="lab_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Information, Document [Axis]</link:label>
    <link:label id="lab_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415_label_en-US" xlink:label="lab_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information, Document [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationDocumentAxis" xlink:label="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:to="lab_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="arc" />
    <link:label id="lab_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50_terseLabel_en-US" xlink:label="lab_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document [Domain]</link:label>
    <link:label id="lab_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50_label_en-US" xlink:label="lab_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentDomain" xlink:label="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:to="lab_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="arc" />
    <link:label id="lab_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339_terseLabel_en-US" xlink:label="lab_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:label id="lab_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339_label_en-US" xlink:label="lab_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Information [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="lab_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:type="arc" />
    <link:label id="lab_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2_label_en-US" xlink:label="lab_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:to="lab_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="arc" />
    <link:label id="lab_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:to="lab_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="arc" />
    <link:label id="lab_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:to="lab_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="arc" />
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105_terseLabel_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105_label_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="arc" />
    <link:label id="lab_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD_terseLabel_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:label id="lab_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD_label_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:to="lab_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="arc" />
    <link:label id="lab_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:to="lab_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="arc" />
    <link:label id="lab_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500_label_en-US" xlink:label="lab_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:to="lab_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="arc" />
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:to="lab_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="arc" />
    <link:label id="lab_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:to="lab_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="arc" />
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:to="lab_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="arc" />
    <link:label id="lab_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C_terseLabel_en-US" xlink:label="lab_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C_label_en-US" xlink:label="lab_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:to="lab_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="arc" />
    <link:label id="lab_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3_label_en-US" xlink:label="lab_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:to="lab_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="arc" />
    <link:label id="lab_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:to="lab_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:to="lab_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:label id="lab_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929_label_en-US" xlink:label="lab_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:to="lab_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:label id="lab_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="lab_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:type="arc" />
    <link:label id="lab_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416_terseLabel_en-US" xlink:label="lab_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Margin</link:label>
    <link:label id="lab_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416_label_en-US" xlink:label="lab_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Profit [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfitAbstract" xlink:label="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="lab_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:label id="lab_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4_label_en-US" xlink:label="lab_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulated Operating Revenue, Gas</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatedOperatingRevenueGas" xlink:label="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:to="lab_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="arc" />
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost of natural gas</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utilities Operating Expense, Gas and Petroleum Purchased</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="arc" />
    <link:label id="lab_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9_totalLabel_en-US" xlink:label="lab_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net margin</link:label>
    <link:label id="lab_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9_label_en-US" xlink:label="lab_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gross Profit</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:to="lab_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Operating expenses</link:label>
    <link:label id="lab_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337_label_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Expenses [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="lab_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="arc" />
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6_verboseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Operations and maintenance</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utilities Operating Expense, Maintenance and Operations</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="arc" />
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utilities Operating Expense, Depreciation and Amortization</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="arc" />
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">General taxes</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utilities Operating Expense, Taxes</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="arc" />
    <link:label id="lab_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8_totalLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total operating expenses</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utilities Operating Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:to="lab_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Operating income</link:label>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Income (Loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:to="lab_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Nonoperating Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:to="lab_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other expense</link:label>
    <link:label id="lab_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C_label_en-US" xlink:label="lab_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Nonoperating Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:to="lab_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619_negatedLabel_en-US" xlink:label="lab_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest expense, net</link:label>
    <link:label id="lab_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619_label_en-US" xlink:label="lab_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:to="lab_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income before income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:to="lab_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings per share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:to="lab_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:to="lab_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:to="lab_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="arc" />
    <link:label id="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221_terseLabel_en-US" xlink:label="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average shares (thousands)</link:label>
    <link:label id="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221_label_en-US" xlink:label="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Average shares [Abstract]</link:label>
    <link:label id="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221_documentation_en-US" xlink:label="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Average shares used in the EPS calculation.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AveragesharesAbstract" xlink:label="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:to="lab_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends declared per share of stock</link:label>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Cash Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:to="lab_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:to="lab_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Benefit Plans [Table]</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:to="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Benefit Plans [Line Items]</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:to="lab_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804_terseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">EMPLOYEE BENEFIT PLANS</link:label>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension and Other Postretirement Benefits Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:to="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F_label_en-US" xlink:label="lab_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:to="lab_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Stock by Class [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014_label_en-US" xlink:label="lab_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Stock by Class [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:to="lab_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB_terseLabel_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Stock [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB_label_en-US" xlink:label="lab_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Stock [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:to="lab_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Stock [Domain]</link:label>
    <link:label id="lab_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5_label_en-US" xlink:label="lab_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Stock [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:to="lab_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="arc" />
    <link:label id="lab_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3_terseLabel_en-US" xlink:label="lab_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Stock [Line Items]</link:label>
    <link:label id="lab_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3_label_en-US" xlink:label="lab_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Stock [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:to="lab_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note Disclosure [Text Block]</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:to="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:to="lab_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:to="lab_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510_label_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:to="lab_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury stock acquired, shares</link:label>
    <link:label id="lab_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E_label_en-US" xlink:label="lab_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Shares, Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:to="lab_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury stock acquired, value</link:label>
    <link:label id="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB_label_en-US" xlink:label="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Value, Acquired, Cost Method</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:to="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</link:label>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:to="lab_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="arc" />
    <link:label id="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588_terseLabel_en-US" xlink:label="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Declared, Annualized Basis</link:label>
    <link:label id="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588_label_en-US" xlink:label="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Declared, Annualized Basis</link:label>
    <link:label id="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588_documentation_en-US" xlink:label="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Dividends declared during the period for each share of common stock outstanding, on an annualized basis.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommonStockDividendsDeclaredAnnualizedBasis" xlink:label="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:to="lab_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="arc" />
    <link:label id="lab_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373_label_en-US" xlink:label="lab_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) [Abstract]</link:label>
    <link:label id="lab_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373_documentation_en-US" xlink:label="lab_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" xlink:label="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:to="lab_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:to="lab_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:label id="lab_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:to="lab_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545_terseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss) Note [Text Block]</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss) Note [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:to="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Amortization of net loss</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Amortization of Gains (Losses)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:to="lab_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of unrecognized prior service cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Amortization of Prior Service Cost (Credit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:to="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="arc" />
    <link:label id="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0_negatedTerseLabel_en-US" xlink:label="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment, before tax and regulatory adjustments</link:label>
    <link:label id="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0_label_en-US" xlink:label="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss) reclassification adjustment, before tax and regulatory adjustments</link:label>
    <link:label id="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0_documentation_en-US" xlink:label="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss) reclassification adjustment, before tax and regulatory adjustments</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments" xlink:label="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:to="lab_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="arc" />
    <link:label id="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31_negatedTerseLabel_en-US" xlink:label="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Regulatory adjustments</link:label>
    <link:label id="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31_label_en-US" xlink:label="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss) reclassification - Regulatory adjustments</link:label>
    <link:label id="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31_documentation_en-US" xlink:label="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss) reclassification - Regulatory adjustments represent pension and other postretirement benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments" xlink:label="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:to="lab_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment, before tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment, Tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment, net of tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="arc" />
    <link:label id="lab_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B_label_en-US" xlink:label="lab_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CREDIT FACILITIES [Abstract]</link:label>
    <link:label id="lab_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B_documentation_en-US" xlink:label="lab_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CREDIT FACILITIES [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CREDITFACILITIESAbstract" xlink:label="loc_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:to="lab_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility [Table]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="lab_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Lender Name [Axis]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lender Name [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:to="lab_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Lender [Domain]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Lender [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:to="lab_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="arc" />
    <link:label id="lab_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:label id="lab_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:to="lab_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="arc" />
    <link:label id="lab_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Credit Facility [Domain]</link:label>
    <link:label id="lab_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC_label_en-US" xlink:label="lab_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Facility [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:to="lab_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term Debt [Line Items]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:to="lab_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term Debt [Text Block]</link:label>
    <link:label id="lab_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A_label_en-US" xlink:label="lab_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:to="lab_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="arc" />
    <link:label id="lab_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC_label_en-US" xlink:label="lab_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS [Abstract]</link:label>
    <link:label id="lab_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC_documentation_en-US" xlink:label="lab_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract" xlink:label="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:to="lab_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Hierarchy [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Hierarchy [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Measurements, Fair Value Hierarchy [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:to="lab_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:to="lab_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="arc" />
    <link:label id="lab_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5_terseLabel_en-US" xlink:label="lab_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative, Nonmonetary Notional Amount</link:label>
    <link:label id="lab_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5_label_en-US" xlink:label="lab_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Nonmonetary Notional Amount</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNonmonetaryNotionalAmount" xlink:label="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:to="lab_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="arc" />
    <link:label id="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96_terseLabel_en-US" xlink:label="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Premiums recorded in other current assets on natural gas contracts held</link:label>
    <link:label id="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96_label_en-US" xlink:label="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Premiums recorded in other current assets on natural gas contracts held</link:label>
    <link:label id="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96_documentation_en-US" xlink:label="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount of premiums recorded in other current assets on natural gas contracts held</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld" xlink:label="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:to="lab_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="arc" />
    <link:label id="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF_terseLabel_en-US" xlink:label="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value, natural gas call options</link:label>
    <link:label id="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF_label_en-US" xlink:label="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair value, natural gas call options</link:label>
    <link:label id="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF_documentation_en-US" xlink:label="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The fair value of purchased natural gas call options held.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Fairvaluenaturalgascalloptions" xlink:label="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:to="lab_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="arc" />
    <link:label id="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A_terseLabel_en-US" xlink:label="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Assets, Transfers between Levels</link:label>
    <link:label id="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A_label_en-US" xlink:label="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Assets, Transfers between Levels</link:label>
    <link:label id="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A_documentation_en-US" xlink:label="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of transfers of assets measured on a recurring basis between levels of the fair value hierarchy.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_FairValueAssetsTransfersbetweenLevels" xlink:label="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:to="lab_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, including current maturities</link:label>
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C_label_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Excluding Current Maturities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:to="lab_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt</link:label>
    <link:label id="lab_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9_label_en-US" xlink:label="lab_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:to="lab_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Fair Value</link:label>
    <link:label id="lab_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B_label_en-US" xlink:label="lab_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:to="lab_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="lab_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, plant and equipment</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Plant in Service</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Accumulated Depreciation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592_totalLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net property, plant and equipment</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="lab_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851_terseLabel_en-US" xlink:label="lab_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable, net</link:label>
    <link:label id="lab_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851_label_en-US" xlink:label="lab_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables, Net, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:to="lab_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37_terseLabel_en-US" xlink:label="lab_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Materials and supplies</link:label>
    <link:label id="lab_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37_label_en-US" xlink:label="lab_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Materials, Supplies, and Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaterialsSuppliesAndOther" xlink:label="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:to="lab_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Natural gas in storage</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Inventory</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesInventory" xlink:label="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:to="lab_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory assets</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:to="lab_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current assets</link:label>
    <link:label id="lab_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:to="lab_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label id="lab_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6_label_en-US" xlink:label="lab_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:to="lab_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="arc" />
    <link:label id="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A_verboseLabel_en-US" xlink:label="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Goodwill and other assets</link:label>
    <link:label id="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A_label_en-US" xlink:label="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments and other assets [Abstract]</link:label>
    <link:label id="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A_documentation_en-US" xlink:label="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">e5171b7a-202d-b2ed-e1e6-d1c8d50b4c9b</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_InvestmentsAndOtherAssetsAbstract" xlink:label="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="lab_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory assets</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:to="lab_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="arc" />
    <link:label id="lab_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E_label_en-US" xlink:label="lab_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:to="lab_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:to="lab_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="arc" />
    <link:label id="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82_totalLabel_en-US" xlink:label="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total goodwill and other assets</link:label>
    <link:label id="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82_label_en-US" xlink:label="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total goodwill and other assets</link:label>
    <link:label id="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82_documentation_en-US" xlink:label="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sum of the carrying amounts as of the balance sheet date of all assets, excluding property, plant and equipment, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Totalgoodwillandotherassets" xlink:label="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:to="lab_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="arc" />
    <link:label id="lab_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F_label_en-US" xlink:label="lab_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:to="lab_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity and Liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity and long-term debt</link:label>
    <link:label id="lab_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E_label_en-US" xlink:label="lab_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capitalization, Long-term Debt and Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquityAbstract" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="lab_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common stock, $0.01 par value: authorized 250,000,000 shares; issued 52,598,005 shares and outstanding 52,431,914 shares at March 31, 2017; issued 52,598,005 and outstanding 52,283,260 at December 31, 2016</link:label>
    <link:label id="lab_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0_label_en-US" xlink:label="lab_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Value, Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:to="lab_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Paid-in Capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid in Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:to="lab_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive income (loss)</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury stock, at cost: 166,091 shares at March 31, 2017 and 314,745 shares at December 31, 2016</link:label>
    <link:label id="lab_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239_label_en-US" xlink:label="lab_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:to="lab_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:to="lab_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C_verboseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-term debt, excluding current maturities and net issuance costs of $8,648 and $8,851, respectively</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:to="lab_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9_totalLabel_en-US" xlink:label="lab_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity and long-term debt</link:label>
    <link:label id="lab_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9_label_en-US" xlink:label="lab_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capitalization, Long-term Debt and Equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquity" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:to="lab_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes payable</link:label>
    <link:label id="lab_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD_label_en-US" xlink:label="lab_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Paper</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:to="lab_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:to="lab_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest</link:label>
    <link:label id="lab_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Payable, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:to="lab_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45_terseLabel_en-US" xlink:label="lab_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued taxes other than income</link:label>
    <link:label id="lab_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45_label_en-US" xlink:label="lab_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrual for Taxes Other than Income Taxes, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:to="lab_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="arc" />
    <link:label id="lab_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884_terseLabel_en-US" xlink:label="lab_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer deposits</link:label>
    <link:label id="lab_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884_label_en-US" xlink:label="lab_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Customer Deposits, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CustomerDepositsCurrent" xlink:label="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:to="lab_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory liabilities</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Liability, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:to="lab_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:to="lab_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:to="lab_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred credits and other liabilities [Abstract]</link:label>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities, Noncurrent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="lab_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Net, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="arc" />
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE_terseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee benefit obligations</link:label>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:to="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other deferred credits</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="arc" />
    <link:label id="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF_totalLabel_en-US" xlink:label="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total deferred credits and other liabilities</link:label>
    <link:label id="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF_label_en-US" xlink:label="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total deferred credits and other liabilities</link:label>
    <link:label id="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF_documentation_en-US" xlink:label="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total obligations, excluding long-term debt, incurred as part of normal operations that is expected to be repaid beyond the following twelve months or one business cycle.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalDeferredCreditsAndOtherLiabilities" xlink:label="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:to="lab_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitments and contingencies</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:to="lab_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="arc" />
    <link:label id="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8_terseLabel_en-US" xlink:label="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions</link:label>
    <link:label id="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8_label_en-US" xlink:label="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions</link:label>
    <link:label id="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8_documentation_en-US" xlink:label="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of former manufactured gas sites where we own or retain legal responsibility.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions" xlink:label="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:to="lab_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="arc" />
    <link:label id="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7_terseLabel_en-US" xlink:label="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of sites where we have completed or addressed removal of the source of soil contamination according to plans approved by KDHE.</link:label>
    <link:label id="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7_label_en-US" xlink:label="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number Of Sites Soil Remediation Is Completed Or Near Completion</link:label>
    <link:label id="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7_documentation_en-US" xlink:label="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of sites soil remediation is completed or near completion.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion" xlink:label="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:to="lab_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="arc" />
    <link:label id="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F_terseLabel_en-US" xlink:label="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of sites with ongoing groundwater monitoring</link:label>
    <link:label id="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F_label_en-US" xlink:label="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of sites with ongoing groundwater monitoring</link:label>
    <link:label id="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F_documentation_en-US" xlink:label="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of sites where groundwater continues to be monitored in accordance to plans approved by the KDHE.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Numberofsiteswithongoinggroundwatermonitoring" xlink:label="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:to="lab_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="arc" />
    <link:label id="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2_terseLabel_en-US" xlink:label="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of sites where regulatory closure has been achieved</link:label>
    <link:label id="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2_label_en-US" xlink:label="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of sites where regulatory closure has been achieved</link:label>
    <link:label id="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2_documentation_en-US" xlink:label="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of sites where regulatory closure has been achieved</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved" xlink:label="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:to="lab_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="arc" />
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361_terseLabel_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate Range, Low</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361_label_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate Range, Low</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361_documentation_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Potential costs associated with environmental remediation, low-end range.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeLow" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:to="lab_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="arc" />
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681_terseLabel_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate Range, High</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681_label_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate Range, High</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681_documentation_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Potential costs associated with environmental remediation, high-end range.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeHigh" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:to="lab_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="arc" />
    <link:label id="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94_terseLabel_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate, Actual</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94_label_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Environmental Reserve Estimate, Actual</link:label>
    <link:label id="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94_documentation_en-US" xlink:label="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase in the reserve recorded for potential costs associated with environmental remediation.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateActual" xlink:label="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:to="lab_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="arc" />
    <link:label id="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B_terseLabel_en-US" xlink:label="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage yield of high consequence pipeline areas</link:label>
    <link:label id="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B_label_en-US" xlink:label="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">PercentageYieldOfHighConsequencePipelineAreas</link:label>
    <link:label id="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B_documentation_en-US" xlink:label="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum percentage yield required to test pipelines previously untested in high-consequence areas.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Percentageyieldofhighconsequencepipelineareas" xlink:label="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:to="lab_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:to="lab_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Benefit Plans and Other Postretirement Benefit Plans [Domain]</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan and Other Postretirement Benefit Plan [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:to="lab_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="arc" />
    <link:label id="lab_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A_terseLabel_en-US" xlink:label="lab_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ONE Gas Pension Plans [Member]</link:label>
    <link:label id="lab_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A_label_en-US" xlink:label="lab_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Plan [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:to="lab_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768_terseLabel_en-US" xlink:label="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ONE Gas Postretirement Benefit Plans [Member]</link:label>
    <link:label id="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768_label_en-US" xlink:label="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Postretirement Benefit Plan [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:to="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="arc" />
    <link:label id="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126_terseLabel_en-US" xlink:label="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Components of net periodic benefit cost:</link:label>
    <link:label id="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126_label_en-US" xlink:label="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of net periodic benefit cost: [Abstract]</link:label>
    <link:label id="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126_documentation_en-US" xlink:label="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Components of net periodic benefit cost: [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ComponentsofnetperiodicbenefitcostAbstract" xlink:label="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="lab_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Service cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Service Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:to="lab_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Interest Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:to="lab_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Expected return on assets</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Expected Return on Plan Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:to="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC_totalLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net periodic benefit cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Benefit Plan, Net Periodic Benefit Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:to="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:to="lab_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="arc" />
    <link:label id="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43_terseLabel_en-US" xlink:label="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of natural gas distribution services customers</link:label>
    <link:label id="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43_label_en-US" xlink:label="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of natural gas distribution services customers</link:label>
    <link:label id="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43_documentation_en-US" xlink:label="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of customers the natural gas distribution service segment services.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfNaturalGasDistributionServicesCustomers" xlink:label="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:to="lab_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="arc" />
    <link:label id="lab_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segment Reporting, Disclosure of Major Customers</link:label>
    <link:label id="lab_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB_label_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segment Reporting, Disclosure of Major Customers</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingDisclosureOfMajorCustomers" xlink:label="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:to="lab_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Excess tax benefit related to the share-based compensation provision</link:label>
    <link:label id="lab_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719_label_en-US" xlink:label="lab_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds and Excess Tax Benefit from Share-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation" xlink:label="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:to="lab_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="arc" />
    <link:label id="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6_terseLabel_en-US" xlink:label="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating loss carryforward related to the share-based compensation provision</link:label>
    <link:label id="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6_label_en-US" xlink:label="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Tax Benefit</link:label>
    <link:label id="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6_documentation_en-US" xlink:label="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount recorded as a deferred tax asset related to the adoption of ASU 2016-09, which represents an operating loss carryforward tax benefit available to reduce future taxable income.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OperatingLossCarryforwardsTaxBenefit" xlink:label="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:to="lab_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="arc" />
    <link:label id="lab_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C_terseLabel_en-US" xlink:label="lab_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Prior period cash flow reclass related to the share-based compensation provision</link:label>
    <link:label id="lab_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C_label_en-US" xlink:label="lab_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prior Period Reclassification Adjustment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustment" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:to="lab_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E_label_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:to="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:to="lab_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss), net of tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Change in pension and postemployment benefit plan liability, net of tax of $(80) and $(72), respectively</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss), net of tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC_terseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="arc" />
    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7_terseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SIGNIFICANT ACCOUNTING POLICIES</link:label>
    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7_label_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Significant Accounting Policies [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:to="lab_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="arc" />
    <link:label id="lab_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF_label_en-US" xlink:label="lab_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">STATEMENTS OF COMPREHENSIVE INCOME Parenthetical [Abstract]</link:label>
    <link:label id="lab_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF_documentation_en-US" xlink:label="lab_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">STATEMENTS OF COMPREHENSIVE INCOME Parenthetical [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract" xlink:label="loc_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:to="lab_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension and other postemployment benefit plans, tax</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615_label_en-US" xlink:label="lab_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Unclassified [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:to="lab_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt [Text Block]</link:label>
    <link:label id="lab_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189_label_en-US" xlink:label="lab_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="loc_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:to="lab_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:to="lab_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:to="lab_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29_label_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="lab_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="arc" />
    <link:label id="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555_terseLabel_en-US" xlink:label="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Note Payable Due 2019 [Member]</link:label>
    <link:label id="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555_label_en-US" xlink:label="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note Payable Due 2019 [Member]</link:label>
    <link:label id="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555_documentation_en-US" xlink:label="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Note Payable Due 2019 [Member]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2019Member" xlink:label="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:to="lab_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="arc" />
    <link:label id="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2_terseLabel_en-US" xlink:label="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Note Payable Due 2024 [Member]</link:label>
    <link:label id="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2_label_en-US" xlink:label="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Note Payable Due 2024 [Member]</link:label>
    <link:label id="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2_documentation_en-US" xlink:label="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Note Payable Due 2024 [Member]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2024Member" xlink:label="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:to="lab_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="arc" />
    <link:label id="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B_terseLabel_en-US" xlink:label="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Payable Due 2044 [Member]</link:label>
    <link:label id="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B_label_en-US" xlink:label="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes Payable Due 2044 [Member]</link:label>
    <link:label id="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B_documentation_en-US" xlink:label="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A written promise to pay a note.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotesPayableDue2044Member" xlink:label="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:to="lab_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="lab_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Description</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Covenant Description</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:to="lab_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Debt, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:to="lab_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="arc" />
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0_terseLabel_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Axis]</link:label>
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0_label_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Axis]</link:label>
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0_documentation_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information by type of regulatory asset/liabilities itemized in a table of regulatory assets/liabilities.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAxis" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:to="lab_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="arc" />
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39_terseLabel_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Domain]</link:label>
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39_label_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets and Liabilities [Domain]</link:label>
    <link:label id="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39_documentation_en-US" xlink:label="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Information by type of regulatory asset/liabilities itemized in a table of regulatory assets/liabilities.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesDomain" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:to="lab_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="arc" />
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B_terseLabel_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B_label_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Table Text Block]</link:label>
    <link:label id="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B_documentation_en-US" xlink:label="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Table Text Block] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:to="lab_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402_label_en-US" xlink:label="lab_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:to="lab_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Paid-in Capital [Member]</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:to="lab_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury Stock [Member]</link:label>
    <link:label id="lab_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C_label_en-US" xlink:label="lab_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:to="lab_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Member]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AOCI Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3_periodStartLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Shares issued, beginning balance</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:to="lab_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Equity, beginning balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:to="lab_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cumulative effect of accounting change</link:label>
    <link:label id="lab_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4_label_en-US" xlink:label="lab_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:to="lab_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchase of common stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:to="lab_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock issued, shares</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock issued, value</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, New Issues</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Common stock dividends - $0.42 per share</link:label>
    <link:label id="lab_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB_label_en-US" xlink:label="lab_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends, Common Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:to="lab_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084_periodEndLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Shares issued, ending balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:to="lab_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Equity, ending balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:to="lab_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Net Benefit Costs [Table Text Block]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C_label_en-US" xlink:label="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Net Benefit Costs [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:to="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="arc" />
    <link:label id="lab_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74_terseLabel_en-US" xlink:label="lab_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ratio of Indebtedness to Net Capital</link:label>
    <link:label id="lab_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74_label_en-US" xlink:label="lab_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ratio of Indebtedness to Net Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:to="lab_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="arc" />
    <link:label id="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413_terseLabel_en-US" xlink:label="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial paper maximum borrowing capacity</link:label>
    <link:label id="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413_label_en-US" xlink:label="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial paper maximum borrowing capacity</link:label>
    <link:label id="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413_documentation_en-US" xlink:label="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum borrowing capacity under the commercial paper program.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Commercialpapermaximumborrowingcapacity" xlink:label="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:to="lab_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term Debt</link:label>
    <link:label id="lab_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C_label_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Short-term Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:to="lab_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="arc" />
    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0_terseLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Letters of Credit Outstanding, Amount</link:label>
    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0_label_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Letters of Credit Outstanding, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:to="lab_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Remaining Borrowing Capacity</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Remaining Borrowing Capacity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:to="lab_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:to="lab_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for doubtful accounts</link:label>
    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8_label_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for Doubtful Accounts</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:to="lab_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in assets and liabilities:</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Receivables</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:to="lab_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Materials and supplies</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Materials and Supplies</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInMaterialsAndSupplies" xlink:label="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:to="lab_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Income tax receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Income Taxes Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:to="lab_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Natural gas in storage</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Inventories</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:to="lab_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Asset removal costs</link:label>
    <link:label id="lab_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9_label_en-US" xlink:label="lab_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Removal Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRemovalCosts" xlink:label="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:to="lab_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accounts Payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:to="lab_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Interest Payable, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued taxes other than income</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Property and Other Taxes Payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:to="lab_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accrued Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Customer deposits</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Customer Deposits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:to="lab_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Regulatory assets and liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Regulatory Assets and Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:to="lab_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other assets and liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Assets and Liabilities, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Capital expenditures</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for (Proceeds from) Other Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:to="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash used in investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repayments of notes payable, net</link:label>
    <link:label id="lab_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005_label_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from (Repayments of) Commercial Paper</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:to="lab_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repurchase of common stock</link:label>
    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F_label_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Repurchase of Common Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:to="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends paid</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of Dividends</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:to="lab_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="arc" />
    <link:label id="lab_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2_terseLabel_en-US" xlink:label="lab_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax withholdings related to net share settlements of stock compensation</link:label>
    <link:label id="lab_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2_label_en-US" xlink:label="lab_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Excess Tax Benefit from Share-based Compensation, Financing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:to="lab_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash used in financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB_totalLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Change in cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13_terseLabel_en-US" xlink:label="lab_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]</link:label>
    <link:label id="lab_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13_label_en-US" xlink:label="lab_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:to="lab_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Asset [Axis]</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Asset [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:to="lab_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Asset [Domain]</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Asset [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="lab_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="arc" />
    <link:label id="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C_terseLabel_en-US" xlink:label="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Under-recovered purchased-gas costs [Member]</link:label>
    <link:label id="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C_label_en-US" xlink:label="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Under-recovered purchased-gas costs [Member]</link:label>
    <link:label id="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C_documentation_en-US" xlink:label="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of under-recovered purchased-gas costs [Member]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_UnderrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:to="lab_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="arc" />
    <link:label id="lab_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281_terseLabel_en-US" xlink:label="lab_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pension and postretirement benefit costs [Member]</link:label>
    <link:label id="lab_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281_label_en-US" xlink:label="lab_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension Costs [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionCostsMember" xlink:label="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:to="lab_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="arc" />
    <link:label id="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97_terseLabel_en-US" xlink:label="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weather normalization [Member]</link:label>
    <link:label id="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97_label_en-US" xlink:label="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weather normalization [Member]</link:label>
    <link:label id="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97_documentation_en-US" xlink:label="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weather normalization represents revenue over- or under-recovered through the weather normalization adjustment rider in Kansas.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_WeathernormalizationMember" xlink:label="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:to="lab_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="arc" />
    <link:label id="lab_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC_terseLabel_en-US" xlink:label="lab_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Reacquired debt costs [Member]</link:label>
    <link:label id="lab_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC_label_en-US" xlink:label="lab_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss on Reacquired Debt [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossOnReacquiredDebtMember" xlink:label="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:to="lab_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="arc" />
    <link:label id="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3_terseLabel_en-US" xlink:label="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other regulatory assets [Member]</link:label>
    <link:label id="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3_label_en-US" xlink:label="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other regulatory assets [Member]</link:label>
    <link:label id="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3_documentation_en-US" xlink:label="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents other regulatory assets.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OtherregulatoryassetsMember" xlink:label="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:to="lab_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="arc" />
    <link:label id="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA_terseLabel_en-US" xlink:label="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total regulatory assets, net of amortization [Member]</link:label>
    <link:label id="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA_label_en-US" xlink:label="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total regulatory assets, net of amortization [Member]</link:label>
    <link:label id="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA_documentation_en-US" xlink:label="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total regulatory assets, net of amortization</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatoryassetsnetofamortizationMember" xlink:label="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:to="lab_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Liability [Axis]</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Liability [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityAxis" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:to="lab_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Liability [Domain]</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Liability [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="lab_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="arc" />
    <link:label id="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425_terseLabel_en-US" xlink:label="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Over-recovered purchased-gas costs [Member]</link:label>
    <link:label id="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425_label_en-US" xlink:label="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Over-recovered purchased-gas costs [Member]</link:label>
    <link:label id="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425_documentation_en-US" xlink:label="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of over-recovered purchased-gas costs.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OverrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:to="lab_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="arc" />
    <link:label id="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC_terseLabel_en-US" xlink:label="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ad valorem tax [Member]</link:label>
    <link:label id="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC_label_en-US" xlink:label="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Ad valorem tax [Member]</link:label>
    <link:label id="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC_documentation_en-US" xlink:label="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Ad valorem tax represents an increase in Kansas Gas Service&#8217;s taxes above the amount approved in a rate case.  Kansas law permits a utility to file a tariff to recover additional ad valorem tax expense incurred above the amount currently recovered in the cost of service rate.  This excess amount is recoverable through a surcharge and can be recovered, provided the utility reports the change in rates to the KCC, on an annual basis.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AdvaloremtaxMember" xlink:label="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:to="lab_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="arc" />
    <link:label id="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E_terseLabel_en-US" xlink:label="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total regulated liabilities [Member]</link:label>
    <link:label id="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E_label_en-US" xlink:label="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total regulated liabilities [Member]</link:label>
    <link:label id="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E_documentation_en-US" xlink:label="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of total regulated liabilities.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatedliabilitiesMember" xlink:label="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:to="lab_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38_verboseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Assets, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:to="lab_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2_verboseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Assets, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:to="lab_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Assets</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:to="lab_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Liability, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:to="lab_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Liability, Noncurrent</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Liability, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:to="lab_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Liabilities</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilities" xlink:label="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:to="lab_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="arc" />
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207_terseLabel_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net regulatory assets (liabilities), current</link:label>
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207_label_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net regulatory assets and liabilities, current</link:label>
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207_documentation_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net amount of all current regulatory assets less all current regulatory liabilities as of the end of the period.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiescurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:to="lab_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="arc" />
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4_terseLabel_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net regulatory assets (liabilities), noncurrent</link:label>
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4_label_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net regulatory assets and liabilities, noncurrent</link:label>
    <link:label id="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4_documentation_en-US" xlink:label="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net amount of noncurrent regulatory assets less all noncurrent regulatory liabilities as of the end of the period.</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiesnoncurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:to="lab_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43_terseLabel_en-US" xlink:label="lab_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Regulatory Assets</link:label>
    <link:label id="lab_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43_label_en-US" xlink:label="lab_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Regulatory Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetRegulatoryAssets" xlink:label="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:to="lab_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, par value per share</link:label>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, shares authorized</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:to="lab_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, shares issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:to="lab_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock, shares outstanding</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:to="lab_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="arc" />
    <link:label id="lab_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E_terseLabel_en-US" xlink:label="lab_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasury stock, shares</link:label>
    <link:label id="lab_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E_label_en-US" xlink:label="lab_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasury Stock, Shares</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:to="lab_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6_terseLabel_en-US" xlink:label="lab_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt issuance costs</link:label>
    <link:label id="lab_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6_label_en-US" xlink:label="lab_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Issuance Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtIssuanceCosts" xlink:label="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:to="lab_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="arc" />
    <link:label id="lab_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D_label_en-US" xlink:label="lab_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives and Fair Value Measurement [Abstract]</link:label>
    <link:label id="lab_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D_documentation_en-US" xlink:label="lab_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Derivatives and Fair Value Measurement [Abstract]</link:label>
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DerivativesandFairValueMeasurementAbstract" xlink:label="loc_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:to="lab_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivatives</link:label>
    <link:label id="lab_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D_label_en-US" xlink:label="lab_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives, Reporting of Derivative Activity [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativesReportingOfDerivativeActivity" xlink:label="loc_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:to="lab_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurement</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:to="lab_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:type="arc" />
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>11
<FILENAME>ogs-20170331_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:href="ogs-20170331.xsd#AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheets" xlink:href="ogs-20170331.xsd#BalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:href="ogs-20170331.xsd#BalanceSheetsBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:href="ogs-20170331.xsd#CommitmentsAndContingenciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:href="ogs-20170331.xsd#CreditFacilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:href="ogs-20170331.xsd#CreditFacilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:href="ogs-20170331.xsd#DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:href="ogs-20170331.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareDetails" xlink:href="ogs-20170331.xsd#EarningsPerShareDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareNotes" xlink:href="ogs-20170331.xsd#EarningsPerShareNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EarningsPerShareTables" xlink:href="ogs-20170331.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:href="ogs-20170331.xsd#EmployeeBenefitPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityDetails" xlink:href="ogs-20170331.xsd#EquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/EquityNotes" xlink:href="ogs-20170331.xsd#EquityNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtDetails" xlink:href="ogs-20170331.xsd#LongTermDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/LongTermDebtNotes" xlink:href="ogs-20170331.xsd#LongTermDebtNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:href="ogs-20170331.xsd#RegulatoryAssetsAndLiabilitiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:href="ogs-20170331.xsd#StatementOfChangesInEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfCashFlows" xlink:href="ogs-20170331.xsd#StatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:href="ogs-20170331.xsd#StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/StatementsOfIncome" xlink:href="ogs-20170331.xsd#StatementsOfIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesNotes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="ogs-20170331.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:presentationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" xlink:label="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_2BB9A6B095F897F073E2D2B845C5BB2F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_2BB9A6B095F897F073E2D2B845C5BB2F" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3BA36D421A643A59C257D2B845C6753A" xlink:to="loc_us-gaap_EquityComponentDomain_A71D408F5CA1BE15BE1ED2B845C67A4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_2FA9778EEA78FBDC5197D2B845C67A03" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5F4401B3F80EAC98E759D2B845C6ED15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_35E4584525CD70EADC88D2B845C6D98B" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments" xlink:label="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments_AB1E73D7D87F08C07B02D2B845C65FD0" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments" xlink:label="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments_0A6CFCE3D7CBC1303F27D2B845C62F31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax_A48F3197D201D7C0D1ACD2B845C6B715" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax_6E2E4E319465AB7C9539D2B845C6502B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_EC4A873A9EEFB502AA25D2B845C6E5A6" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_7C8BB70693D81F78DE56D2B845C604C4" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" xlink:label="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_D049311ADB3CDB6F3B62D2B845C29373" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_A49583880E54D871EACED2B845C25F9E" xlink:to="loc_us-gaap_EquityComponentDomain_F3995FE0A4CBD746ED2BD2B845C2712B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_F97FD3D8D98AC8F4A818D2B845C21C61" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_5F889FE8AB48FF251875D2B845C2C893" xlink:to="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_3DF209562D3E073862C6D2B845C30545" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract" xlink:label="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_BBB57E3EBF504ABAE90BD2B845C06A1C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSAbstract_BBB57E3EBF504ABAE90BD2B845C06A1C" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_F1E01F12839AB073509CD2B845C02879" xlink:to="loc_us-gaap_EquityComponentDomain_CB72F09B2E67B8C2CD03D2B845C068A1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_BED95CEB98DBBD813ACCD2B845C06D5D" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_127BE80EDE82C87DD9EAD2B845C1B65C" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_E3A1DE27C3F7A7F13224D2B845C1CF13" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/BalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_2D45ED7DE3A39B83EEB1A6F74F25488E" xlink:to="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:to="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_7A5B2C690AA22C84F83DA6F74F2566E4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A1EF770FCAF6E90165AEA6F74F256EEA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_9EADDC9FE977AC7B6298A6F74F252BA2" xlink:to="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_A69E05E70141AA98792FA6F74F253D5B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_6A65C46D1656DF6524B0A6F74F25A27D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetAbstract_91ECAD1B42848AEFD6BBA6F74F25A8D0" xlink:to="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_08AAA22C04DBD9EAD0FEA6F74F250592" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_B06E09FEB9B74A8D28C9A6F74F25B0E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ReceivablesNetCurrent" xlink:label="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_ReceivablesNetCurrent_17359EA3E25F72B5D70CA6F74F251851" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaterialsSuppliesAndOther" xlink:label="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_MaterialsSuppliesAndOther_6FC28ADF11F8A24AD066A6F74F255F37" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PublicUtilitiesInventory" xlink:label="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_PublicUtilitiesInventory_3F2909C3BA26BCA8D1BFA6F74F26237C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_76BC58A6F3ECED3A5A49A6F74F26FDD8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_OtherAssetsCurrent_AAFADBC014D795696EF0A6F74F267B30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_B507CCC30D1F3C5C8B56A6F74F252A4B" xlink:to="loc_us-gaap_AssetsCurrent_62F6E0784AD49B9A2F96A6F74F2658D6" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_InvestmentsAndOtherAssetsAbstract" xlink:label="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_BED69BF37834BFDBA726A6F74F26E25E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_Goodwill_E5E0197F4FB530FFA9AAA6F74F26AD4E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_F4606E56FC09664FCB5BA6F74F2679A8" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Totalgoodwillandotherassets" xlink:label="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_InvestmentsAndOtherAssetsAbstract_5BA82BEE205F3B299088A6F74F26275A" xlink:to="loc_ogs_Totalgoodwillandotherassets_443F3078424AB830D8C7A6F74F262B82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_982AEE3031208723F403A6F74F25B20F" xlink:to="loc_us-gaap_Assets_C90ED876EA1327AA0F88A6F74F26914F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquityAbstract" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_CommonStockValue_18C3849075116D0E1378A6F74F2652F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_AdditionalPaidInCapital_01EF97CDCBB83470E292A6F74F262A64" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_583B22E47752480B2766A6F74F264969" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_BF151A1682D3206B9AE1A6F74F26969B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_TreasuryStockValue_77A45E62E262D6184D4BA6F74F263239" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_StockholdersEquity_22E2F67897FC53D5D03CA6F74F262428" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_A74E2F0E17FC125575DDA6F74F26B74C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalizationLongtermDebtAndEquity" xlink:label="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CapitalizationLongtermDebtAndEquityAbstract_1ACD3F2275471CCCA47AA6F74F26D38E" xlink:to="loc_us-gaap_CapitalizationLongtermDebtAndEquity_DB0DC5780DDF09261FF7A6F74F2697C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommercialPaper" xlink:label="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_CommercialPaper_7D353FD600E84B673199A6F74F270DBD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccountsPayableCurrent_1DC7394FAA1310D24C2DA6F74F27DA4D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_InterestPayableCurrent_B41069B21CFF8B4ABBF6A6F74F27E0E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent" xlink:label="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent_A4576F14C3A7D9D2E6D7A6F74F275D45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_D1AC21C3036F83F2902DA6F74F275575" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CustomerDepositsCurrent" xlink:label="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_CustomerDepositsCurrent_0492223492D3A8093C11A6F74F277884" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_5C54E5FCE9096607F038A6F74F27A8AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_4D4AE3842CA984091931A6F74F27370F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_68E600FBBEEB6DAAF510A6F74F260A83" xlink:to="loc_us-gaap_LiabilitiesCurrent_CC183017A183F23FDAA8A6F74F27479B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_4042D70D80C3F090196AA6F74F262CF4" xlink:to="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_A9E87A711DF39CCB66ECA6F74F274851" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_939F3DAC2A0AB693FEC9A6F74F278FEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_84018CC817863E844688A6F74F278E97" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalDeferredCreditsAndOtherLiabilities" xlink:label="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesNoncurrentAbstract_E0F2151B39A566EA005AA6F74F276A09" xlink:to="loc_ogs_TotalDeferredCreditsAndOtherLiabilities_9FC182F278E16F06B235A6F74F2786EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_CommitmentsAndContingencies_53CC53F1055038AA43F5A6F74F2701CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_5D08969FCEB9A803C601A6F74F259C75" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_46B9C27E8FB9F38F7111A6F74F270C1F" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_AC551E849E7099108908D2B846320D6C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_AC551E849E7099108908D2B846320D6C" xlink:to="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:to="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_218C94BAD98A3F0CB27FD2B846338B17" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_2BC098F916FF5ACB9C0AD2B846331B2B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2FF8E66288456340121DD2B8463326BE" xlink:to="loc_us-gaap_ClassOfStockDomain_9E7056B5D2CD9ACC8E69D2B846339CF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_7C9BF33B0F6F97A6BB2ED2B8463269DB" xlink:to="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_6735C383118CE7F71A7CD2B8463395EA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_0E89D2570AD05000DCECD2B8463318D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesIssued_5191E72B63C82E129821D2B84633D52A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_066A39978C30ACC878A5D2B84633FC88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_TreasuryStockShares_CB960752B99CC357AC6CD2B846333C3E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtIssuanceCosts" xlink:label="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_4AA1E5085C7F9F32878BD2B84633E0A6" xlink:to="loc_us-gaap_DebtIssuanceCosts_7177474C6457B7FC4CC3D2B8463319A6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DA6045DBCD3F6A261D39A6ADDBF94A88" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesTable" xlink:label="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_DA6045DBCD3F6A261D39A6ADDBF94A88" xlink:to="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:to="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_73907721F6AF66B29525A6ADDBFB87D3" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F5E4CF7E228F2943A169A6ADDBFB1A5F" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesLineItems" xlink:label="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesTable_2EC7A7DCA2E1309D6218A6ADDBFB3F7A" xlink:to="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions" xlink:label="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions_1A867BECAC93E66380FCA6ADDBFC4FE8" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion" xlink:label="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion_69B05A5C5A8C58EB1204A6ADEECAD8F7" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Numberofsiteswithongoinggroundwatermonitoring" xlink:label="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_Numberofsiteswithongoinggroundwatermonitoring_20A2CAB34FC2D7346956A6ADDBFCE65F" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved" xlink:label="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved_3546996601966372943FA6ADDBFCEAA2" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeLow" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateRangeLow_8C1CAF14B95928AD4AD2A6ADDBFC0361" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateRangeHigh" xlink:label="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateRangeHigh_C73D9E3A11F694DB018BA6ADDBFCA681" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EnvironmentalReserveEstimateActual" xlink:label="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_EnvironmentalReserveEstimateActual_256D97CE2DAA32D88192A6ADDBFCFF94" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Percentageyieldofhighconsequencepipelineareas" xlink:label="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_87766495C8DFDA717B0FA6ADDBFC6562" xlink:to="loc_ogs_Percentageyieldofhighconsequencepipelineareas_9105235E9A49241BD986A6ADDBFC109B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/CommitmentsAndContingenciesNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesTable" xlink:label="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_43ED9EE96827513D0B8DD2B8463D8F3B" xlink:to="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:to="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_4138EF3B1123EB6E56F3D2B8463DF151" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_49D2B42CD1B5549665B7D2B8463D84A1" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommitmentsandContingenciesLineItems" xlink:label="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesTable_97AEE9BFB3FCEA05C40DD2B8463DD0A2" xlink:to="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CommitmentsandContingenciesLineItems_35BB62D5D3548F4FD9ACD2B8463DD229" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_8E5725716E9EB13B465AD2B8463D2ED5" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/CreditFacilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CREDITFACILITIESAbstract" xlink:label="loc_ogs_CREDITFACILITIESAbstract_AD9EACD6FCF616E4E7DFA67442F6F72D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CREDITFACILITIESAbstract_AD9EACD6FCF616E4E7DFA67442F6F72D" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:to="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_1E60375FBEA67356D614A67442F67C07" xlink:to="loc_us-gaap_CreditFacilityDomain_01EFCEE594A70FCD3C01A67442F602DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6ADB48344F1188819C27A67442F6CC7A" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RatioOfIndebtednessToNetCapital1" xlink:label="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_RatioOfIndebtednessToNetCapital1_231A35F6F5FD05036AC8A67442F6AB74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_F813B195828FB81B0920A67442F6C11E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_DebtInstrumentCovenantDescription_F813B195828FB81B0920A67442F6C11E" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Commercialpapermaximumborrowingcapacity" xlink:label="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_ogs_Commercialpapermaximumborrowingcapacity_E68435060DA4000E1116A67442F64413" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermBorrowings" xlink:label="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_ShortTermBorrowings_9F3715C6D3C935A65546A68935248F7C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_0802EA3E940C2C88B190A67442F69BD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6733DDFEEB6F9702F627A67442F6FBE1" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_A03E415F7B20521929A1A67442F6BBDC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/CreditFacilitiesNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CREDITFACILITIESAbstract" xlink:label="loc_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityTable" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_CREDITFACILITIESAbstract_DE217682EBC81B4FC38CD2B8461C4E9B" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityAxis" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLenderDomain" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_87AECA212E4CB957D38ED2B8461CB1E8" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_7AFEE129A7BA2FB5FD74D2B8461C8FFC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_7C5B7FFC7D9394A25703D2B8461C798E" xlink:to="loc_us-gaap_CreditFacilityDomain_76F472E463108032DC4ED2B8461CE0DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_F250039BA97103804966D2B8461C31A9" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_6BFF5759A4C4A88E5AE1D2B8461DED28" xlink:to="loc_us-gaap_ShortTermDebtTextBlock_8000560E0BBEB7BEB199D2B8461D8E4A" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DerivativesandFairValueMeasurementAbstract" xlink:label="loc_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativesReportingOfDerivativeActivity" xlink:label="loc_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:to="loc_us-gaap_DerivativesReportingOfDerivativeActivity_9D5A3CB8F12C0A63AE0FD2B845E3B68D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DerivativesandFairValueMeasurementAbstract_42D6F6FE8F6F77A5E6F0D2B845E3EA2D" xlink:to="loc_us-gaap_FairValueMeasurementPolicyPolicyTextBlock_AC6B22E5DBEF84EFDF9ED2B845E32221" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract" xlink:label="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_0E68C92525015A25338D64387D274AE8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_0E68C92525015A25338D64387D274AE8" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_C840C02BDAA68EC83A6664387D37AEAF" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_038B411D9075A119D1F964387D3793C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_E9B4A2841DF3F6D6E87664387D370375" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_80922F80467AB47BB96264387D378B5B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:to="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_76C2D75D97E45ABE2A5B64387D374123" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04D519EF972D0FAF9B9464387D371664" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_7CE957D693AD3DA018D364387D37E5C6" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_DerivativeNonmonetaryNotionalAmount" xlink:label="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_invest_DerivativeNonmonetaryNotionalAmount_146D20BDA0ABE5E1A05C64387D378BA5" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld" xlink:label="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld_6E115E7AD6D2FEF5672964387D377F96" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Fairvaluenaturalgascalloptions" xlink:label="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_Fairvaluenaturalgascalloptions_B21D5C75FCBF59C6034064387D37CAEF" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_FairValueAssetsTransfersbetweenLevels" xlink:label="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_ogs_FairValueAssetsTransfersbetweenLevels_526D8EB910463D297CDA64387D37CD5A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_F753EA327BEE27D6A82064387D375D3C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebt_83E12BC080531532884964387D37BEE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtFairValue" xlink:label="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_76B7822D811ACC10657664387D37BA32" xlink:to="loc_us-gaap_LongTermDebtFairValue_AD8C5FC75A1091C6F22664387D37737B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract" xlink:label="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DERIVATIVEFINANCIALINSTRUMENTSANDFAIRVALUEMEASUREMENTSAbstract_7CA98D8C5167A6615BB7D2B845BE1FCC" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:to="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_25982F388A3868CD7BF3D2B845BE126E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A80C0CA8D535F4AA64C9D2B845BE2037" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_41B9922525B42F7078A1D2B845BE8DA9" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_BA93A2A6DFD1776FD76CD2B845BE6A59" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_1C211FFB78E321077D16D2B845BE6048" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/DocumentAndEntityInformation" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DocumentAndEntityInformationAbstract" xlink:label="loc_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationTable" xlink:label="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DocumentAndEntityInformationAbstract_AD86505904B0CB3AAD17D2B84612F893" xlink:to="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationDocumentAxis" xlink:label="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:to="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentDomain" xlink:label="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationDocumentAxis_9D40B8006273DB6A73C5D2B846123415" xlink:to="loc_dei_DocumentDomain_0DDC0EA24008B5F81E44D2B846133F50" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentInformationLineItems" xlink:label="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_C85CC6418B672B7798E4D2B846126FC1" xlink:to="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityRegistrantName_61CD40F2B1998CBD8561D2B8461399E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCentralIndexKey_F8D55A7F31935256DAB5D2B8461366A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_CurrentFiscalYearEndDate_01C298FE831428907EA5D2B84613544F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_D704747F2422210CA5EFD2B846139105" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityVoluntaryFilers_5448E25ED8D6E87CBED4D2B8461330CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCurrentReportingStatus_C53CA080F1EE070DE13BD2B846134DA0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityFilerCategory_5C3AFC0D6B7B7073F50DD2B846131500" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_7130620E14BA7F99E127D2B846134AE1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentFiscalYearFocus_B2E8B38DA1D18C9B153DD2B846136221" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentFiscalPeriodFocus_A5607FFD64474025B565D2B8461313A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentType_694EAA30C30ED5B819D2D2B84613C53C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_AmendmentFlag_B5B98D657CDE6C82703ED2B8461314A3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="locator" />
    <link:presentationArc order="13" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_40E18DF43B6B9C2B505FD2B846131339" xlink:to="loc_dei_DocumentPeriodEndDate_BF22A934E838CF40EDF4D2B8461376E8" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_0C9A0564203AB957E9CED2B84620405E" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:to="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_CC3EA74617D185D1D8FED2B84620369E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1B34647F707A7E02EB75D2B846200005" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_C7E50214DF30ABF6F82AD2B846206C63" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_BasicEPSCalculationAbstract" xlink:label="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_83B72F0CCB42DFC3129DD2B846215FB6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_BasicEPSCalculationAbstract_30703039E8BF517D329DD2B846210ED1" xlink:to="loc_us-gaap_EarningsPerShareBasic_60AACD10D2972008F29FD2B84621BB35" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_DilutedEPSCalculationAbstract" xlink:label="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_F9CFCD0AE66B65F76828D2B84620CC2E" xlink:to="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:type="arc" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_NetIncomeLoss_7F55A16E87BBC5E3B8C4D2B846213FA4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DilutiveSecurities" xlink:label="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_DilutiveSecurities_BEA6C9A7BCBC26BC84A2D2B84621B503" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:label="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment_6E3B91B86C5110734A65D2B846215340" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_9AF09A3FC571412B5315D2B84621EEE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_DilutedEPSCalculationAbstract_7E7251C4DB94570A9283D2B846212082" xlink:to="loc_us-gaap_EarningsPerShareDiluted_A0CEFF8B92B11818AB83D2B846211EF9" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EarningsPerShareNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_2AF9A4F306CFE7B8EA89D2B845CB9C6F" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_2AF9A4F306CFE7B8EA89D2B845CB9C6F" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:to="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_7F4C2F4AF456E7DE3B43D2B845CBF303" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_991176E9AAE8E6738005D2B845CB193B" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_245D1E8BABA043A3F4A1D2B845CB39C7" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_FB5641CD5914BEDD325BD2B845CB2B34" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_D2E5AB84353B49DF1418D2B845CB9122" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EarningsPerShareTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_89252E466B77DFB0DBABD2B845DD85C2" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_89252E466B77DFB0DBABD2B845DD85C2" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:to="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_748BA0F38792ADA3996CD2B845DD9F0A" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_A991A5FD896BFAB7A2CED2B845DD19E9" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems" xlink:label="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDTable_CDD2F28FA634E3203591D2B845DDDF0F" xlink:to="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems_4278FD6F6C8F59455927D2B845DD2AA5" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_415D395756B877968224D2B845DDBA86" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_69DDA5D6CB256F38F65AD2B846037CF1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_69DDA5D6CB256F38F65AD2B846037CF1" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:to="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_44ADDAADD36DBB04C6BBD2B846032465" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_63A01E18C114C9F3F786D2B8460323B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis" xlink:label="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:to="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansDomain" xlink:label="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis_EE89642CD744CF69C6A9D2B84603D6E2" xlink:to="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_38AB2E49C8FFD35FF667D2B84604F29A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansDomain_D99FCDCAB1F85DA8A65DD2B84604A354" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_27B344A999CECDCB7AF9D2B84604F768" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AF0315602ADD031BE5ABD2B84603DF92" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_ComponentsofnetperiodicbenefitcostAbstract" xlink:label="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_035D750FFB09019BD8D8D2B846042C87" xlink:to="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_FF2B79CE2B16FD1A1538D2B84604C496" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_D6CEEB17A4959104EB8DD2B846047911" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_3D7EC77F5EF80C287319D2B846042368" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_E1CD98A65725683F51E0D2B84604EA9D" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_E1CD98A65725683F51E0D2B84604EA9D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_28653DC67D73DF34956CD2B84604E11F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_28653DC67D73DF34956CD2B84604E11F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_ComponentsofnetperiodicbenefitcostAbstract_E0FD290FF9B1786AC314D2B846045126" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_080D9E74C4605290FFA2D2B84604FEFC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_37E99AC9C5AA0770F6E0D2B845FFFC76" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:to="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_745F0B68BE33EF5E28BED2B845FFE76F" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_C9EC1D2CD9CF86B45CE9D2B845FF5E4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_3221D77EA793FFBF49D8D2B845FFEAE7" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_EFB00924237DE57A92EAD2B845FF48C0" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_F92EE1005A83406C61D1D2B845FF8804" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EmployeeBenefitPlansTables" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_AF1F029CE4C4FFDB5A64D2B8462F8E1E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansDisclosureAbstract_AF1F029CE4C4FFDB5A64D2B8462F8E1E" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:to="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_BD5A8AD760CE117A6F90D2B8462FB6D1" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_1BFBB0B7654C0F210999D2B8462FE183" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_AD78D3760C53BFB280B9D2B8462F2A66" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_9F12166338D3C34FA9DDD2B8462FD0CD" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_34DB7020D31CFB8AB863D2B84630FA7C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EquityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_D734D9259B00B8A39C66A67442BB7F88" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_D734D9259B00B8A39C66A67442BB7F88" xlink:to="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_8F4CB293F0617D3F38F1A68AEFC485C9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_ADCD17AEAC7FC4B4B236A68AEFC7B517" xlink:to="loc_us-gaap_SubsequentEventMember_2E369716A5ECC596A745A6954E5AB510" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:to="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_60D5A084E9DFCD26A27FA67442C0C8DE" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_6FCD0D9A3670DE0B9779A67442C02BA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_ECF36890CA7A2AD0889FA67442BBCA76" xlink:to="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockSharesAcquired" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_9C62455E786F27F02B2CA67442C01D8E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_4B4E9FA6C9A2D733E6BEA67442C0CADB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_977658A788930D23AC1FA67442C095CB" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_CommonStockDividendsDeclaredAnnualizedBasis" xlink:label="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_E18464FF4674F989E69DA67442C04D03" xlink:to="loc_ogs_CommonStockDividendsDeclaredAnnualizedBasis_FE7CE8EDECC9413A5D81A67442C17588" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/EquityNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_BDE19300DA57D586DF28D2B8460C1D3F" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:to="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementClassOfStockAxis_B4D6BCF230703FF1127AD2B8460C41AB" xlink:to="loc_us-gaap_ClassOfStockDomain_6A482C2C192B511A557CD2B8460C39C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:label="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_B0C05051C365DA4CA169D2B8460C0014" xlink:to="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ClassOfStockLineItems_161C417ADC03C52E97B1D2B8460CCFB3" xlink:to="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_83AF490667EA994B2A97D2B8460CBB2B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/LongTermDebtDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_3EBEB98DA3529CA1DFFED2B846077A86" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_3EBEB98DA3529CA1DFFED2B846077A86" xlink:to="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9C9914A9B25ECB4613EDD2B84607898A" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2019Member" xlink:label="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotePayableDue2019Member_614B456717869A4BA949D2B846087555" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotePayableDue2024Member" xlink:label="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotePayableDue2024Member_029B121C519F8C5ED4FED2B8460848F2" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NotesPayableDue2044Member" xlink:label="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_96B3515EB701F0751F39D2B84607CE29" xlink:to="loc_ogs_NotesPayableDue2044Member_B2DEF3E937C90587DA6ED2B84608A71B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_66B05EE653704E29D35FD2B84607EE25" xlink:to="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCovenantDescription" xlink:label="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentCovenantDescription_4FFF0D09B73D50490ADFD2B84608488B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_B5C13FB6B95921555426D2B8460861F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_227415654D13E1D81D3AD2B846083173" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_90EBCC959A53694C30B1D2B846083271" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/LongTermDebtNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtAbstract" xlink:label="loc_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermDebtTextBlock" xlink:label="loc_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongTermDebtAbstract_69FA1854ECBC64648342D2B846163615" xlink:to="loc_us-gaap_LongTermDebtTextBlock_3BF49F22BFB588950416D2B846165189" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAbstract" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_6A44BACF2593EA8CDCAFA67443117FFD" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_6A44BACF2593EA8CDCAFA67443117FFD" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_0A73279EBEB6799669D0A6744311F4A4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_CF662956B80AC75F1EB2A6744311A4B2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetAxis" xlink:label="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetDomain" xlink:label="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetAxis_1A5F09FC3BEFF5B9E69CA6744311E46F" xlink:to="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_UnderrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_UnderrecoveredpurchasedgascostsMember_3C73A14766F16F03AEEAA6744311F20C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PensionCostsMember" xlink:label="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_us-gaap_PensionCostsMember_4BA62E6E06ADAE458081A67443114281" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_WeathernormalizationMember" xlink:label="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_WeathernormalizationMember_523674CFC7837A79D383A67443118B97" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LossOnReacquiredDebtMember" xlink:label="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_us-gaap_LossOnReacquiredDebtMember_6BC20905A08FF89ACDA5A6744311DCEC" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OtherregulatoryassetsMember" xlink:label="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_OtherregulatoryassetsMember_AA497A0C1F7611D77E4FA674431213A3" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatoryassetsnetofamortizationMember" xlink:label="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryAssetDomain_CC4DF502ADD7E9322302A6744311B852" xlink:to="loc_ogs_TotalregulatoryassetsnetofamortizationMember_47A78FC8C31D2EBDA900A674431262BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityAxis" xlink:label="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityDomain" xlink:label="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityAxis_0F3C5C3E201EADAC2636A67443122FC3" xlink:to="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OverrecoveredpurchasedgascostsMember" xlink:label="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_OverrecoveredpurchasedgascostsMember_9181CF4BD3E525478ADCA67443121425" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AdvaloremtaxMember" xlink:label="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_AdvaloremtaxMember_5856095B3A02D358B800A674431244CC" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_TotalregulatedliabilitiesMember" xlink:label="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RegulatoryLiabilityDomain_B05D007E9D0405B0512DA6744312CE86" xlink:to="loc_ogs_TotalregulatedliabilitiesMember_EFA577E32C15B438A5FBA6744312984E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_F5F5E682FD71C983D85BA6744312A6FB" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_2A370E84AB19703CEE55A67443120ECF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_FF4611EB54B90E169836A674431207AF" xlink:to="loc_us-gaap_SubsequentEventMember_2A370E84AB19703CEE55A67443120ECF" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_A2F0E66963B7E5FB3F73A6744311A8D4" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsCurrent" xlink:label="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssetsCurrent_6C66FF6BDCAC403DF7A8A67443127A38" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_A4EE1B9CDACC273C10B6A6744312FBE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryAssets" xlink:label="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryAssets_7DBA2816A38CCF6A55B1A6744313F5C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityCurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilityCurrent_D20119450649CB42AF2EA6744313EA85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_1E8232284BBB5EA1BCA6A67443136586" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatoryLiabilities" xlink:label="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_RegulatoryLiabilities_C6BDF9B135B923E82732A6744313ACC9" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiescurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_ogs_Netregulatoryassetsandliabilitiescurrent_C38535079234AC49F2E4A6744313D207" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_Netregulatoryassetsandliabilitiesnoncurrent" xlink:label="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_ogs_Netregulatoryassetsandliabilitiesnoncurrent_8B93A0FB541974C14EE0A6744313D6F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetRegulatoryAssets" xlink:label="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_ECADFC02FBA326CAE3D4A67443126E31" xlink:to="loc_us-gaap_NetRegulatoryAssets_29249F3EB5DD00A4039FA6744313CA43" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAbstract" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CB484693B2944EAD77BCD2B8460AFBC0" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:to="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_A54D2D4354D0F98ECEEAD2B8460AFCB0" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_8A50806B97522168A670D2B8460AF593" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_9DD264C12CC862CC4493D2B8460A066F" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock" xlink:label="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_7B745CC6AE89613A5BAED2B8460A49CF" xlink:to="loc_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock_C7E0AAF57819D93B62C8D2B8460AA517" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAbstract" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CFE0DDC2D53117E960F5D2B845C92FEF" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAbstract_CFE0DDC2D53117E960F5D2B845C92FEF" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:to="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_11A20790D40A12BA3316D2B845C9CC82" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_B18AC9EC1426D199D64AD2B845C96C74" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesAxis" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:to="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_RegulatoryAssetsandLiabilitiesDomain" xlink:label="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_RegulatoryAssetsandLiabilitiesAxis_0DC73FA8472AEAF40A5FD2B845C993D0" xlink:to="loc_ogs_RegulatoryAssetsandLiabilitiesDomain_8C8323132B59E3D90920D2B845C91E39" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTable_01414DA01BAC6C6BD7CBD2B845C9FBA7" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock" xlink:label="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems_3522263EFCBDE4752B85D2B845C9B9C1" xlink:to="loc_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock_AD4D1C0309DF2F4944B5D2B845C9751B" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/StatementOfChangesInEquity" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_C35DD22CEB4FD26D3AE5B0330FAF8818" xlink:to="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_6969C7593182344E696AB0330FAF1CEE" xlink:to="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_CommonStockMember_AAB400D6E7C99828CAB0B0330FAF9402" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_66F84D3A5AB7CAF4CD3AB0330FAF1D03" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_RetainedEarningsMember_DEF1F65BD8A9DE0349A5B0330FAFDF4A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockMember" xlink:label="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_TreasuryStockMember_2E7606A7CA7F9A6EB525B0330FAF8B0C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_86833FA195BF7C7C1EBFB0330FAF13BD" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_CBB960B5817A353C7684B0330FAF1700" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_FF04528DDC395DC3AF16B0330FAF5016" xlink:to="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_CommonStockSharesIssued_F27144C4F398E9B56529B0330FAF2CA3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockholdersEquity_FC76CEE03166C2DF93EFB0330FAF9B63" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet" xlink:label="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet_A3BD71933147D8FB7D0DB0330FAF82D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_9FC3E5AD56E64AECF297B0330FAF0FAC" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_NetIncomeLoss_9FC3E5AD56E64AECF297B0330FAF0FAC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_E5FE6220BBB4D2196BB0B0330FAFFAB4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_85AC3BEBB9B880B07512B0330FAFDF2E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_5E832FEF04C6C3134D09B0330FAF0E33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_8B0CC8EEE86D4ECCC7E5B0330FAF5AB3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DividendsCommonStock" xlink:label="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_DividendsCommonStock_CBFA89DEAE9D5D3FE518B0330FAF72FB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_CommonStockSharesIssued_649AF8D570C72EADD97AB0330FB9A084" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_71A3F27F161055744DB9B0330FAFACD0" xlink:to="loc_us-gaap_StockholdersEquity_264D7DBA374E58F444EFB0330FB9E6AD" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/StatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_445D54B5550512864E79A6672321F8CD" xlink:to="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:to="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_F524C350676B1673518DA66723216E26" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_04302E5229BBD48FF91CA66723211440" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_59F5DB03462C58AF2B0BA66723210CDF" xlink:to="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_0AC5C267F6DA83F2AD0CA6672321CC9E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_NetIncomeLoss_0AC5C267F6DA83F2AD0CA6672321CC9E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_195D6F08752CAC098F08A667232104C8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_195D6F08752CAC098F08A667232104C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_DB78D4AEF08ABF049B4BA66723215EFE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_ShareBasedCompensation_C3248176AB366C4CD49BA6672321F925" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProvisionForDoubtfulAccounts" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_7F62C21F54D5AFD8E9CAA6672321E7D8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_F2DA313550590A975FEAA6672321EC83" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInReceivables" xlink:label="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInReceivables_9E992FA4CADC5D8FFFE5A6672321A4B3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInMaterialsAndSupplies" xlink:label="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInMaterialsAndSupplies_12FDCF1579CF257C4F24A667232BF404" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_2A795F612FCFAAD9BC37A667232B0DFF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_D4E7285B11B9CA2EA2C6A667232B1291" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRemovalCosts" xlink:label="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_PaymentsForRemovalCosts_152C2E32186E79A78A3DA667232B63A9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_E4680CFF68F3267B4157A667232B2ED2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_E7EB2C5CDCF4E82169A7A667232B782C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable" xlink:label="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable_DDA9235B649FDE30C956A667232B7C12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInAccruedLiabilities_C14DCE06A26302969C4CA667232BAD6C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInCustomerDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInCustomerDeposits_AD2EB01F875F9FE37A0EA667232B83B0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_23B174E6FA1E5CA7EC20A667232BE120" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_8443BC7A78D375F05C36A66723212921" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_DECF053D1ACA78250214A667232BE759" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_4F3B669FD4578DE7AECBA66723218773" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_859602A254BFFF63079DA667232BC233" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_A730370D43FA34517054A667232B0443" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_3B20053021B78DB9A161A667232B76F5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_FFDBAFD281C51DC99B10A667232B73DC" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C88DB9344FD732DB2F7BA667232B8B7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_26EEDD0335CCE9700365A667232B1005" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_678E2C647AF3D7788AF1A667232BE43F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_PaymentsOfDividends_D4EC369BEF2E59119A14A667232BA535" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities" xlink:label="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities_91E37FE55FBB87D9C9EAA66D7CA2EEF2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_C7C511D10623F973557CA667232B5BD1" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_835656D323970E860692A667232BBA3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_FF45BC13A69BB0A05CDFA667232B57CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_E996F5257CB32DB156E1A667232B451D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_25DC433D5B24C27F55C6A6672321EFC7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_640E0B57AC831D87D62CA667232B6A73" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_C75E06FD07DCCE38B8C0A6F724D3018E" xlink:to="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:to="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_CC32888C3183B6A6D864A6F724D37FC8" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_950E585A01522D62A45DA6F724D319C0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_D39BE60C5A5D6E6F8457A6F724D39623" xlink:to="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_NetIncomeLoss_A7AB509687D36C97748FA6F724D4E265" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_60958285AFF76D3CD45FA6F724D46473" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_6BE208EC785BA0B1A8D3A6F724D4EC71" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_9C2645B40DE506ABE574A6F724D4604C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_39B7AD95A24881C02A30A6F724D35FEC" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_14A81FC765361C7FE91DA6F724D41AFC" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical" xlink:type="extended">
    <link:loc xlink:href="ogs-20170331.xsd#ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract" xlink:label="loc_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract_21B52E4B69B07449EAC5D2B846150BEF" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_E96D0C77F39342F8A547D2B846153CB0" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/StatementsOfIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_D3B1E7D36FD7F134BD1FD2B846393F96" xlink:to="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:to="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_DED4EDE4AF69D4F78CD2D2B84639C9F4" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_F64E854696DF28988865D2B84639D3BC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_3F04F1C992898C35CACED2B84639F929" xlink:to="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfitAbstract" xlink:label="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RegulatedOperatingRevenueGas" xlink:label="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_RegulatedOperatingRevenueGas_6A71001AA991622FD1D3D2B8463996E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_F1EAAE2941A30AF8A43CD2B84639FF21" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_GrossProfitAbstract_C8F83569E1CC164F8F24D2B846395416" xlink:to="loc_us-gaap_GrossProfit_8D0FCE548EE9F184A5ACD2B84639D7C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations_D81854AD8E9573113704D2B8463916E6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_ED8F5C032EFF74F1668FD2B84639E896" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpenseTaxes" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseTaxes_2FD44864B31FBDDA6FA1D2B846396E12" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UtilitiesOperatingExpense" xlink:label="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OperatingExpensesAbstract_BE0CFDF797999C436210D2B84639F337" xlink:to="loc_us-gaap_UtilitiesOperatingExpense_92A5A373F0DA316C7F63D2B8463921C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OperatingIncomeLoss_56C1C6FF573291FD772DD2B846397071" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OtherNonoperatingIncome_709713523DF4CE680352D2B84639250B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherNonoperatingExpense" xlink:label="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_OtherNonoperatingExpense_EA3EA7FB2C1A9FF335F9D2B8463A5D4C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="locator" />
    <link:presentationArc order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_InterestExpense_AB66BE6A8EBAE7034535D2B8463A8619" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="locator" />
    <link:presentationArc order="7" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_F67C2E58A71D7C68C2DAD2B8463AE18B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="locator" />
    <link:presentationArc order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_50EB67F52272FCCA383AD2B8463AD59E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="locator" />
    <link:presentationArc order="9" preferredLabel="http://www.xbrl.org/2003/role/totalLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_NetIncomeLoss_C1DC05B2E4216FEE41D2D2B8463A9EF3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="locator" />
    <link:presentationArc order="10" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:to="loc_us-gaap_EarningsPerShareBasic_2E34EC19932A6074FA48D2B8463AF693" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_310E8E25ED8034A455A5D2B8463A4910" xlink:to="loc_us-gaap_EarningsPerShareDiluted_CBF53565FF8C40C7F666D2B8463AFE38" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_AveragesharesAbstract" xlink:label="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="locator" />
    <link:presentationArc order="11" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_F28F1280852F83BF7F56D2B8463A7146" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_AveragesharesAbstract_B14D2BCC979088BA10DED2B8463AC221" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_2571CDE9A7B9BFE8194CD2B8463A1FC2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="locator" />
    <link:presentationArc order="12" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_3E23B60703CC4D879061D2B846391215" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_E90E1F12AE4D556D910ED2B8463A29B6" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_D63F9F9C46E574B31AC6B0330FAF2A98" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_D63F9F9C46E574B31AC6B0330FAF2A98" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:to="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_E98D292EEE2A9BAE8CA9B0330FAF6A5E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_672D640DA693B9112EE0B0330FAF143C" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_DE7A719BB1C3C94763F3B0330FAFC374" xlink:to="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_NumberOfNaturalGasDistributionServicesCustomers" xlink:label="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_ogs_NumberOfNaturalGasDistributionServicesCustomers_9B4865421BAD03BE6C73B0330FAFCE43" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingDisclosureOfMajorCustomers" xlink:label="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_SegmentReportingDisclosureOfMajorCustomers_F41147FD5115C933CA2BB0330FAFD3AB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation" xlink:label="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation_B15604BA4AF85C73E750B0330FAF2719" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_OperatingLossCarryforwardsTaxBenefit" xlink:label="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="locator" />
    <link:presentationArc order="4" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_ogs_OperatingLossCarryforwardsTaxBenefit_59923B9F4040640F379FB0330FAFEAD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustment" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="locator" />
    <link:presentationArc order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_FE277C36733A3C44D931B0330FAF4482" xlink:to="loc_us-gaap_PriorPeriodReclassificationAdjustment_FB3571170122CCF383BCB0330FAF5C6C" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_D4E99A15D04DC56C952FD2B845E1C685" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_D4E99A15D04DC56C952FD2B845E1C685" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:to="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_C208F6AA45C117F919C6D2B845E2812E" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_308345069B519F998639D2B845E2738F" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_52DCA81CF8ACF35D25C8D2B845E17C9B" xlink:to="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_35C42664E97280E6FD1DD2B845E25250" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_9F700364D20129AED25DD2B845E2EEE7" xlink:type="arc" />
  </link:presentationLink>
  <link:presentationLink xlink:role="http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:type="locator" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesTable" xlink:label="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_94CA73E30ABAB8398ADAA674431F26E4" xlink:to="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:to="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementScenarioAxis_FB7295A27DB5A93B28F2A674431F58D5" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_D9EFC6A2C30574C0849BA674431FEDA7" xlink:type="arc" />
    <link:loc xlink:href="ogs-20170331.xsd#ogs_SignificantAccountingPoliciesLineItems" xlink:label="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesTable_B8ADF7DE59974B0D333CA674431F51C1" xlink:to="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="locator" />
    <link:presentationArc order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_UseOfEstimates_0858415224B2833CC77EA674431F538A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SegmentReportingPolicyPolicyTextBlock" xlink:label="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="locator" />
    <link:presentationArc order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_SegmentReportingPolicyPolicyTextBlock_306DB65D7740DC524962A674431F830B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="locator" />
    <link:presentationArc order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ogs_SignificantAccountingPoliciesLineItems_F98A2F4B391B81471974A674431FEB34" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_261B77C103AE1972980BA684C6C72F98" xlink:type="arc" />
  </link:presentationLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>12
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6820727584">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Document And Entity Information - shares<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Apr. 25, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentInformationLineItems', window );"><strong>Document Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">ONE Gas, Inc.
<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001587732<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityWellKnownSeasonedIssuer', window );">Entity Well-known Seasoned Issuer</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityVoluntaryFilers', window );">Entity Voluntary Filers</a></td>
<td class="text">No<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Large Accelerated Filer<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">52,435,350<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2017<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Mar. 31,  2017<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>If the value is true, then the document is an amendment to previously-filed/accepted document.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CurrentFiscalYearEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gMonthDayItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalPeriodFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:fiscalPeriodItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentFiscalYearFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalYearFocus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:gYearItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12b<br> -Subsection 1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12b<br> -Subsection 1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityVoluntaryFilers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityVoluntaryFilers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityWellKnownSeasonedIssuer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityWellKnownSeasonedIssuer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821007552">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>STATEMENTS OF INCOME - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfitAbstract', window );"><strong>Gross Margin</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatedOperatingRevenueGas', window );">Revenues</a></td>
<td class="nump">$ 550,408<span></span>
</td>
<td class="nump">$ 508,364<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased', window );">Cost of natural gas</a></td>
<td class="nump">263,154<span></span>
</td>
<td class="nump">235,729<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Net margin</a></td>
<td class="nump">287,254<span></span>
</td>
<td class="nump">272,635<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingExpensesAbstract', window );"><strong>Operating expenses</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations', window );">Operations and maintenance</a></td>
<td class="nump">109,357<span></span>
</td>
<td class="nump">106,131<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="nump">37,019<span></span>
</td>
<td class="nump">34,684<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpenseTaxes', window );">General taxes</a></td>
<td class="nump">15,746<span></span>
</td>
<td class="nump">15,747<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpense', window );">Total operating expenses</a></td>
<td class="nump">162,122<span></span>
</td>
<td class="nump">156,562<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income</a></td>
<td class="nump">125,132<span></span>
</td>
<td class="nump">116,073<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncome', window );">Other income</a></td>
<td class="nump">1,246<span></span>
</td>
<td class="nump">18<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingExpense', window );">Other expense</a></td>
<td class="num">(340)<span></span>
</td>
<td class="num">(455)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpense', window );">Interest expense, net</a></td>
<td class="num">(11,481)<span></span>
</td>
<td class="num">(10,847)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before income taxes</a></td>
<td class="nump">114,557<span></span>
</td>
<td class="nump">104,789<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income taxes</a></td>
<td class="num">(38,101)<span></span>
</td>
<td class="num">(40,046)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 76,456<span></span>
</td>
<td class="nump">$ 64,743<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings per share</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Basic</a></td>
<td class="nump">$ 1.45<span></span>
</td>
<td class="nump">$ 1.23<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted</a></td>
<td class="nump">$ 1.44<span></span>
</td>
<td class="nump">$ 1.22<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_AveragesharesAbstract', window );"><strong>Average shares (thousands)</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic</a></td>
<td class="nump">52,576<span></span>
</td>
<td class="nump">52,519<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted</a></td>
<td class="nump">53,056<span></span>
</td>
<td class="nump">53,107<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockDividendsPerShareCashPaid', window );">Dividends declared per share of stock</a></td>
<td class="nump">$ 0.42<span></span>
</td>
<td class="nump">$ 0.35<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_AveragesharesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Average shares used in the EPS calculation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_AveragesharesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockDividendsPerShareCashPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate dividends paid during the period for each share of common stock outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockDividendsPerShareCashPaid</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=32703322&amp;loc=d3e4984-109258<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1252-109256<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.23)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 18<br> -Article 7<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 20<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 21<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1252-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 18<br> -Article 7<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 20<br> -Article 5<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 21<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1,2)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfitAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfitAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=51673353&amp;loc=d3e41242-110953<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 10<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a),(b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32639-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Income Tax Expense (or Benefit)<br> -URI http://asc.fasb.org/extlink&amp;oid=6515339<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 19<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 20<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingExpensesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of other expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating expense recognized during the period. Such amounts may include: (a) unusual costs, (b) loss on foreign exchange transactions, (c) losses on securities (net of profits), and (d) miscellaneous other expense items.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherNonoperatingIncome">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncome</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatedOperatingRevenueGas">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of regulated gas operating revenues recognized during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatedOperatingRevenueGas</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense for depreciation and amortization of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense for purchased gas and petroleum of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense for routine plant maintenance, repairs and operations of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpenseMaintenanceAndOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpenseTaxes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense for taxes other than income taxes of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpenseTaxes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1448-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Weighted-Average Number of Common Shares Outstanding<br> -URI http://asc.fasb.org/extlink&amp;oid=6528421<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R3.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6809673824">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME Parenthetical - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract', window );"><strong>STATEMENTS OF COMPREHENSIVE INCOME Parenthetical [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax', window );">Pension and other postemployment benefit plans, tax</a></td>
<td class="num">$ (80)<span></span>
</td>
<td class="num">$ (72)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>STATEMENTS OF COMPREHENSIVE INCOME Parenthetical [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_STATEMENTSOFCOMPREHENSIVEINCOMEParentheticalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax (expense) benefit, after reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e640-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (i-k)<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821072144">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 76,456<span></span>
</td>
<td class="nump">$ 64,743<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract', window );"><strong>Other comprehensive income (loss), net of tax</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax', window );">Change in pension and postemployment benefit plan liability, net of tax of $(80) and $(72), respectively</a></td>
<td class="nump">129<span></span>
</td>
<td class="nump">116<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax', window );">Other comprehensive income (loss), net of tax</a></td>
<td class="nump">129<span></span>
</td>
<td class="nump">116<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTax', window );">Comprehensive income</a></td>
<td class="nump">$ 76,585<span></span>
</td>
<td class="nump">$ 64,859<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831223<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e557-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 19<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 20<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of other comprehensive income (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669625-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 55<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=51821188&amp;loc=d3e1436-108581<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (i-k)<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669646-108580<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>16
<FILENAME>R5.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821222752">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>BALANCE SHEETS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNetAbstract', window );"><strong>Property, plant and equipment</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService', window );">Property, plant and equipment</a></td>
<td class="nump">$ 5,468,277<span></span>
</td>
<td class="nump">$ 5,404,168<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation', window );">Accumulated depreciation and amortization</a></td>
<td class="nump">1,694,389<span></span>
</td>
<td class="nump">1,672,548<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet', window );">Net property, plant and equipment</a></td>
<td class="nump">3,773,888<span></span>
</td>
<td class="nump">3,731,620<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current assets</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">13,206<span></span>
</td>
<td class="nump">14,663<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ReceivablesNetCurrent', window );">Accounts receivable, net</a></td>
<td class="nump">249,155<span></span>
</td>
<td class="nump">290,944<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MaterialsSuppliesAndOther', window );">Materials and supplies</a></td>
<td class="nump">34,288<span></span>
</td>
<td class="nump">34,084<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PublicUtilitiesInventory', window );">Natural gas in storage</a></td>
<td class="nump">91,231<span></span>
</td>
<td class="nump">125,432<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory assets</a></td>
<td class="nump">74,636<span></span>
</td>
<td class="nump">83,146<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">18,616<span></span>
</td>
<td class="nump">20,654<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">481,132<span></span>
</td>
<td class="nump">568,923<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_InvestmentsAndOtherAssetsAbstract', window );"><strong>Goodwill and other assets</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory assets</a></td>
<td class="nump">430,338<span></span>
</td>
<td class="nump">440,522<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">157,953<span></span>
</td>
<td class="nump">157,953<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsNoncurrent', window );">Other assets</a></td>
<td class="nump">46,563<span></span>
</td>
<td class="nump">43,773<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Totalgoodwillandotherassets', window );">Total goodwill and other assets</a></td>
<td class="nump">634,854<span></span>
</td>
<td class="nump">642,248<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">4,889,874<span></span>
</td>
<td class="nump">4,942,791<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CapitalizationLongtermDebtAndEquityAbstract', window );"><strong>Equity and long-term debt</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, $0.01 par value: authorized 250,000,000 shares; issued 52,598,005 shares and outstanding 52,431,914 shares at March 31, 2017; issued 52,598,005 and outstanding 52,283,260 at December 31, 2016</a></td>
<td class="nump">526<span></span>
</td>
<td class="nump">526<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapital', window );">Paid-in Capital</a></td>
<td class="nump">1,732,335<span></span>
</td>
<td class="nump">1,749,574<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Retained earnings</a></td>
<td class="nump">226,195<span></span>
</td>
<td class="nump">161,021<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax', window );">Accumulated other comprehensive income (loss)</a></td>
<td class="num">(4,586)<span></span>
</td>
<td class="num">(4,715)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValue', window );">Treasury stock, at cost: 166,091 shares at March 31, 2017 and 314,745 shares at December 31, 2016</a></td>
<td class="nump">9,892<span></span>
</td>
<td class="nump">18,126<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total equity</a></td>
<td class="nump">1,944,578<span></span>
</td>
<td class="nump">1,888,280<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Long-term debt, excluding current maturities and net issuance costs of $8,648 and $8,851, respectively</a></td>
<td class="nump">1,192,647<span></span>
</td>
<td class="nump">1,192,446<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CapitalizationLongtermDebtAndEquity', window );">Total equity and long-term debt</a></td>
<td class="nump">3,137,225<span></span>
</td>
<td class="nump">3,080,726<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommercialPaper', window );">Notes payable</a></td>
<td class="nump">85,400<span></span>
</td>
<td class="nump">145,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">76,142<span></span>
</td>
<td class="nump">131,988<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPayableCurrent', window );">Accrued interest</a></td>
<td class="nump">7,667<span></span>
</td>
<td class="nump">18,854<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent', window );">Accrued taxes other than income</a></td>
<td class="nump">37,431<span></span>
</td>
<td class="nump">42,571<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedLiabilitiesCurrent', window );">Accrued liabilities</a></td>
<td class="nump">12,474<span></span>
</td>
<td class="nump">22,931<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CustomerDepositsCurrent', window );">Customer deposits</a></td>
<td class="nump">61,945<span></span>
</td>
<td class="nump">61,209<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesCurrent', window );">Other current liabilities</a></td>
<td class="nump">26,884<span></span>
</td>
<td class="nump">21,380<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">307,943<span></span>
</td>
<td class="nump">443,933<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrentAbstract', window );"><strong>Deferred credits and other liabilities [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredTaxLiabilitiesNoncurrent', window );">Deferred income taxes</a></td>
<td class="nump">1,065,096<span></span>
</td>
<td class="nump">1,038,568<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent', window );">Employee benefit obligations</a></td>
<td class="nump">300,535<span></span>
</td>
<td class="nump">303,507<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Other deferred credits</a></td>
<td class="nump">79,075<span></span>
</td>
<td class="nump">76,057<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_TotalDeferredCreditsAndOtherLiabilities', window );">Total deferred credits and other liabilities</a></td>
<td class="nump">1,444,706<span></span>
</td>
<td class="nump">1,418,132<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and contingencies</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and equity</a></td>
<td class="nump">$ 4,889,874<span></span>
</td>
<td class="nump">$ 4,942,791<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_InvestmentsAndOtherAssetsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>e5171b7a-202d-b2ed-e1e6-d1c8d50b4c9b</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_InvestmentsAndOtherAssetsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_TotalDeferredCreditsAndOtherLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations, excluding long-term debt, incurred as part of normal operations that is expected to be repaid beyond the following twelve months or one business cycle.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_TotalDeferredCreditsAndOtherLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Totalgoodwillandotherassets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets, excluding property, plant and equipment, that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Totalgoodwillandotherassets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6935-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 720<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6419918&amp;loc=d3e35281-107843<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Current Liabilities<br> -URI http://asc.fasb.org/extlink&amp;oid=6509677<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e637-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e681-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14A<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669686-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 31<br> -Article 5<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Article 3<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapital">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.30(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 31<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapital</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 12<br> -Article 7<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6801-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CapitalizationLongtermDebtAndEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This element represents the total consolidated (as applicable) capitalization of the entity which is comprised of its long-term debt and equity instruments. The table may be detailed by subsidiary (legal entity) and include information by type of debt or equity detailed by instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CapitalizationLongtermDebtAndEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CapitalizationLongtermDebtAndEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CapitalizationLongtermDebtAndEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash<br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3044-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash Equivalents<br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommercialPaper">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.13(2))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 16<br> -Article 7<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommercialPaper</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=25496072&amp;loc=d3e14326-108349<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingencies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CustomerDepositsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CustomerDepositsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredTaxLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences, netted by jurisdiction and classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=37586315&amp;loc=d3e31931-109318<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=37586315&amp;loc=d3e31958-109318<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=37586315&amp;loc=d3e31917-109318<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredTaxLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=35741047&amp;loc=d3e13816-109267<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6388280&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Current Liabilities<br> -URI http://asc.fasb.org/extlink&amp;oid=6509677<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e7018-107765<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6935-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.32)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 25<br> -Article 7<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MaterialsSuppliesAndOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying amount of capitalized costs of materials, supplies, and other assets, which are not included in inventory but used in production.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MaterialsSuppliesAndOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6904-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6911-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e2417-114920<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=21915240&amp;loc=d3e1703-114919<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e2410-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNetAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNetAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesInventory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The period end amount for a type of inventory held by the utility in a schedule of inventories.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Inventory<br> -URI http://asc.fasb.org/extlink&amp;oid=6516093<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-05.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesInventory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period end book value of accumulated depreciation on property, plant and equipment (PPE) that is owned by the regulated operations of the public utility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period end amount of total net PPE.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period end amount of total gross PPE.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ReceivablesNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.3,4)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 3<br> -Subparagraph a<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ReceivablesNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.31(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Article 3<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Staff Accounting Bulletin (SAB)<br> -Number Topic 4<br> -Section E<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6405834&amp;loc=d3e23315-112656<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>17
<FILENAME>R6.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807408912">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>BALANCE SHEETS BALANCE SHEETS Parenthetical - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value per share</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized</a></td>
<td class="nump">250,000,000<span></span>
</td>
<td class="nump">250,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued</a></td>
<td class="nump">52,598,005<span></span>
</td>
<td class="nump">52,598,005<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding</a></td>
<td class="nump">52,431,914<span></span>
</td>
<td class="nump">52,283,260<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockShares', window );">Treasury stock, shares</a></td>
<td class="nump">166,091<span></span>
</td>
<td class="nump">314,745<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtIssuanceCosts', window );">Debt issuance costs</a></td>
<td class="nump">$ 8,648<span></span>
</td>
<td class="nump">$ 8,851<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtIssuanceCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of debt issuance costs (for example, but not limited to, legal, accounting, broker, and regulatory fees).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtIssuanceCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.28,29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 29, 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>18
<FILENAME>R7.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821213840">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>STATEMENTS OF CASH FLOWS - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract', window );"><strong>Operating activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 76,456<span></span>
</td>
<td class="nump">$ 64,743<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net income to net cash provided by operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization', window );">Depreciation and amortization</a></td>
<td class="nump">37,019<span></span>
</td>
<td class="nump">34,684<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxExpenseBenefit', window );">Deferred income taxes</a></td>
<td class="nump">37,461<span></span>
</td>
<td class="nump">16,113<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Share-based compensation expense</a></td>
<td class="nump">2,421<span></span>
</td>
<td class="nump">4,101<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProvisionForDoubtfulAccounts', window );">Provision for doubtful accounts</a></td>
<td class="nump">2,281<span></span>
</td>
<td class="nump">1,384<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in assets and liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInReceivables', window );">Accounts receivable</a></td>
<td class="nump">39,508<span></span>
</td>
<td class="nump">19,801<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInMaterialsAndSupplies', window );">Materials and supplies</a></td>
<td class="num">(204)<span></span>
</td>
<td class="nump">3,617<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable', window );">Income tax receivable</a></td>
<td class="nump">1,397<span></span>
</td>
<td class="nump">38,877<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Natural gas in storage</a></td>
<td class="nump">34,201<span></span>
</td>
<td class="nump">61,600<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRemovalCosts', window );">Asset removal costs</a></td>
<td class="num">(10,387)<span></span>
</td>
<td class="num">(14,171)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="num">(53,957)<span></span>
</td>
<td class="num">(40,060)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInterestPayableNet', window );">Accrued interest</a></td>
<td class="num">(11,187)<span></span>
</td>
<td class="num">(11,219)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable', window );">Accrued taxes other than income</a></td>
<td class="num">(5,140)<span></span>
</td>
<td class="nump">535<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedLiabilities', window );">Accrued liabilities</a></td>
<td class="num">(10,457)<span></span>
</td>
<td class="num">(16,470)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInCustomerDeposits', window );">Customer deposits</a></td>
<td class="nump">736<span></span>
</td>
<td class="nump">2,098<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities', window );">Regulatory assets and liabilities</a></td>
<td class="nump">18,641<span></span>
</td>
<td class="num">(593)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet', window );">Other assets and liabilities</a></td>
<td class="nump">3,447<span></span>
</td>
<td class="nump">23,848<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">Cash provided by operating activities</a></td>
<td class="nump">162,236<span></span>
</td>
<td class="nump">188,888<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract', window );"><strong>Investing activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Capital expenditures</a></td>
<td class="num">(70,471)<span></span>
</td>
<td class="num">(75,261)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForProceedsFromOtherInvestingActivities', window );">Other</a></td>
<td class="nump">61<span></span>
</td>
<td class="nump">392<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">Cash used in investing activities</a></td>
<td class="num">(70,410)<span></span>
</td>
<td class="num">(74,869)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract', window );"><strong>Financing activities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromRepaymentsOfCommercialPaper', window );">Repayments of notes payable, net</a></td>
<td class="num">(59,600)<span></span>
</td>
<td class="num">(12,500)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsForRepurchaseOfCommonStock', window );">Repurchase of common stock</a></td>
<td class="num">(2,469)<span></span>
</td>
<td class="num">(24,066)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsOfDividends', window );">Dividends paid</a></td>
<td class="num">(22,034)<span></span>
</td>
<td class="num">(18,380)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities', window );">Tax withholdings related to net share settlements of stock compensation</a></td>
<td class="num">(9,180)<span></span>
</td>
<td class="num">(8,849)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivities', window );">Cash used in financing activities</a></td>
<td class="num">(93,283)<span></span>
</td>
<td class="num">(63,795)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease', window );">Change in cash and cash equivalents</a></td>
<td class="num">(1,457)<span></span>
</td>
<td class="nump">50,224<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents at beginning of period</a></td>
<td class="nump">14,663<span></span>
</td>
<td class="nump">2,433<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents at end of period</a></td>
<td class="nump">$ 13,206<span></span>
</td>
<td class="nump">$ 52,657<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash<br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3044-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash Equivalents<br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=49171198&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Deferred Tax Expense (or Benefit)<br> -URI http://asc.fasb.org/extlink&amp;oid=6510177<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32639-109319<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB TOPIC 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=34349781&amp;loc=d3e330036-122817<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Staff Accounting Bulletin (SAB)<br> -Number Topic 6<br> -Section I<br> -Subsection 7<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=32706628&amp;loc=d3e11374-113907<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInCustomerDeposits">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the period in the amount of customer money held in customer accounts, including security deposits, collateral for a current or future transactions, initial payment of the cost of acquisition or for the right to enter into a contract or agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInCustomerDeposits</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in income taxes receivable, which represents the amount due from tax authorities for refunds of overpayments or recoveries of income taxes paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInIncomeTaxesReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInInterestPayableNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInterestPayableNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInInventories">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInMaterialsAndSupplies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the period in the carrying amount of capitalized costs of materials, supplies, or both, which are not included in inventory.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInMaterialsAndSupplies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in other assets used in operating activities less other operating liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets and liabilities, other noncurrent assets and liabilities, or a combination of other current and noncurrent assets and liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the period in the amount of cash payments due to taxing authorities for non-income-related taxes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPropertyAndOtherTaxesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInReceivables">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInReceivables</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the value of assets that are created when regulatory agencies permits public utilities to defer costs (revenues) to the balance sheet. This element is a the increase (decrease) of regulatory assets and liabilities combined.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3574-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3574-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 19<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 20<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForProceedsFromOtherInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Investing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3098-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3095-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForProceedsFromOtherInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRemovalCosts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cash outflow related to disposal costs of plants, whether by demolishing, dismantling, abandoning, sale, and so forth during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRemovalCosts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsForRepurchaseOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow to reacquire common stock during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsForRepurchaseOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsOfDividends">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3291-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsOfDividends</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Investing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromRepaymentsOfCommercialPaper">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -Subparagraph c<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3098-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromRepaymentsOfCommercialPaper</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProvisionForDoubtfulAccounts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.5)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProvisionForDoubtfulAccounts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of operating expense for depreciation and amortization of regulated operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>19
<FILENAME>R8.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6809764064">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>STATEMENT OF CHANGES IN EQUITY - 3 months ended Mar. 31, 2017 - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Total</div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Paid-in Capital [Member]</div></th>
<th class="th"><div>Retained Earnings [Member]</div></th>
<th class="th"><div>Treasury Stock [Member]</div></th>
<th class="th"><div>Accumulated Other Comprehensive Income (Loss) [Member]</div></th>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Shares issued, beginning balance at Dec. 31, 2016</a></td>
<td class="nump">52,598,005<span></span>
</td>
<td class="nump">52,598,005<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity, beginning balance at Dec. 31, 2016</a></td>
<td class="nump">$ 1,888,280<span></span>
</td>
<td class="nump">$ 526<span></span>
</td>
<td class="nump">$ 1,749,574<span></span>
</td>
<td class="nump">$ 161,021<span></span>
</td>
<td class="num">$ (18,126)<span></span>
</td>
<td class="num">$ (4,715)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet', window );">Cumulative effect of accounting change</a></td>
<td class="nump">10,982<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">10,982<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">76,456<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">76,456<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax', window );">Other comprehensive income</a></td>
<td class="nump">129<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">129<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValueAcquiredCostMethod', window );">Repurchase of common stock</a></td>
<td class="num">(2,469)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="num">(2,469)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Common stock issued, shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Common stock issued, value</a></td>
<td class="num">(6,766)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="num">(17,469)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">10,703<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DividendsCommonStock', window );">Common stock dividends - $0.42 per share</a></td>
<td class="num">$ (22,034)<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">230<span></span>
</td>
<td class="num">(22,264)<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Shares issued, ending balance at Mar. 31, 2017</a></td>
<td class="nump">52,598,005<span></span>
</td>
<td class="nump">52,598,005<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Equity, ending balance at Mar. 31, 2017</a></td>
<td class="nump">$ 1,944,578<span></span>
</td>
<td class="nump">$ 526<span></span>
</td>
<td class="nump">$ 1,732,335<span></span>
</td>
<td class="nump">$ 226,195<span></span>
</td>
<td class="num">$ (9,892)<span></span>
</td>
<td class="num">$ (4,586)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DividendsCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 405<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6957935&amp;loc=d3e64057-112817<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DividendsCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 19<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 20<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax and reclassification adjustments of other comprehensive income (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669625-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 55<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=51821188&amp;loc=d3e1436-108581<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 29, 30<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 29, 30, 31<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Staff Accounting Bulletin (SAB)<br> -Number Topic 4<br> -Section E<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValueAcquiredCostMethod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValueAcquiredCostMethod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_TreasuryStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>20
<FILENAME>R9.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807333792">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SignificantAccountingPoliciesLineItems', window );"><strong>Significant Accounting Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SignificantAccountingPoliciesTextBlock', window );">SIGNIFICANT ACCOUNTING POLICIES</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">1.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our accompanying unaudited financial statements have been prepared pursuant to the rules and regulations of the SEC.  These statements also have been prepared in accordance with GAAP and reflect all adjustments that, in our opinion, are necessary for a fair statement of the results for the interim periods presented.  All such adjustments are of a normal recurring nature.  The </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;"> year-end balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP.  These unaudited financial statements should be read in conjunction with the audited financial statements and footnotes in our Annual Report.  Due to the seasonal nature of our business, the results of operations for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, are not necessarily indicative of the results that may be expected for a 12-month period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We provide natural gas distribution services to more than </font><font style="font-family:inherit;font-size:10pt;">2 million</font><font style="font-family:inherit;font-size:10pt;"> customers through our divisions in Oklahoma, Kansas and Texas through Oklahoma Natural Gas, Kansas Gas Service and Texas Gas Service, respectively.  We serve residential, commercial, industrial and transportation customers in all three states.  In addition, we also provide natural gas distribution services to wholesale and public authority customers.</font></div><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</font><font style="font-family:inherit;font-size:10pt;"> - The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provision for doubtful accounts, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances.  Nevertheless, actual results may differ significantly from the estimates.  Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Segments </font><font style="font-family:inherit;font-size:10pt;">- We operate in one reportable and operating business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.  The accounting policies for our segment are the same as described in Note 1 of our Notes to the Financial Statements in our Annual Report.  We evaluate our financial performance principally on operating income.  For the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">, we had no single external customer from which we received 10 percent or more of our gross revenues.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Recently Issued Accounting Standards Update</font><font style="font-family:inherit;font-size:10pt;">&#160;- In March 2017, the FASB issued ASU 2017-07, &#8220;Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,&#8221; which requires (1) separation of net periodic service costs for pension and other postemployment benefits into service cost and other components, (2) presentation of the service cost component in the same line as other compensation costs rendered by pertinent employees during the period, which will be the only portion of benefit cost eligible for capitalization and (3) reporting the other components of net periodic benefit costs separately from the service cost component and outside a subtotal of income from operations.&#160; We are evaluating the impact of this guidance, which is required to be adopted for our interim and annual reports for periods beginning after December 15, 2017, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In January 2017, the FASB issued ASU 2017-04, &#8220;Intangibles - Goodwill and Other (Topic 350):  Simplifying the Test for Goodwill Impairment,&#8221; which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 of the goodwill test, where the measurement of a goodwill impairment loss was determined by comparing the implied fair value of a reporting unit&#8217;s goodwill with the carrying amount of that goodwill.  Upon adoption, a goodwill impairment will be the amount by which a reporting unit&#8217;s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.&#160; This new guidance is required for our interim and annual reports for periods beginning after December 15, 2019, and early adoption is permitted.  We do not expect this guidance to have a material impact on our financial statements and will adjust our goodwill testing procedures accordingly upon adoption.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In March 2016, the FASB issued ASU 2016-09, &#8220;Improvements to Employee Share-Based Payment Accounting,&#8221; which includes various new aspects to simplify how share-based payments are accounted for and presented in the financial statements. The new standard modifies several aspects of the accounting and reporting for employee share-based payments and related tax accounting impacts, including the presentation in the statements of operations and cash flows.  We adopted this new guidance in the current quarter, and in accordance with the transition requirements, we recorded </font><font style="font-family:inherit;font-size:10pt;">$5.2 million</font><font style="font-family:inherit;font-size:10pt;"> of excess tax benefits in income tax expense and will transition all provisions of this new guidance prospectively, other than our presentation of our withholding shares for tax-withholding purposes, which will be accounted for retrospectively in the financing activities section of the statement of cash flows.  We recorded a noncash cumulative-effect increase of&#160;</font><font style="font-family:inherit;font-size:10pt;">$11.0 million</font><font style="font-family:inherit;font-size:10pt;">&#160;to retained earnings, with an offset to a deferred tax asset, as of the beginning of the reporting period in 2017, for excess tax benefits earned prior to January 1, 2017, that had not been recognized. We continue our use of the estimation method to account for share unit awards forfeitures rather than actual forfeitures. The retrospective impact of our withholding shares for tax-withholding purposes to our Statement of Cash Flows for the three months ended March 31, 2016, was a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;increase to net cash provided by operating activities and a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;decrease to net cash used in financing activities.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In February 2016, the FASB issued ASU 2016-02, &#8220;Leases (Topic 842),&#8221; which prescribes recognizing lease assets and liabilities on the balance sheet and includes disclosure of key information about leasing arrangements.  &#160;A modified retrospective transition approach is required for leases existing at the time of adoption.  We are evaluating our population of leases, analyzing lease agreements, and holding meetings with cross-functional teams to determine the potential impact of this accounting standard on our financial position and results of operations and the transition approach we will utilize.  This new guidance is required for our interim and annual reports for periods beginning after December 15, 2018, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In May 2014, the FASB issued ASU 2014-09, &#8220;Revenue from Contracts with Customers,&#8221; which clarifies and converges the revenue recognition principles under GAAP and International Financial Reporting Standards. In July 2015, FASB delayed the effective date for one year.  We have substantially completed evaluating all of our sources of revenue to determine the potential effect on our financial position, results of operations, cash flows and the related accounting policies and business processes.  We continue to monitor accounting task forces and the FASB for additional implementation guidance related to: (1)  the accounting for funds received from third parties to partially or fully reimburse the cost of construction of an asset; (2) the evaluation of collectability from customers if a utility has regulatory mechanisms to help assure recovery of uncollected accounts from ratepayers; and (3) the accounting for alternative revenue programs, such as performance-based ratemaking and weather normalization, that may impact the final conclusions of our evaluation.  Until these items are resolved, we cannot complete our evaluation of the potential effect the new guidance will have on our financial position,  results of operations, cash flows, business processes or the transition method we will utilize to adopt the new guidance.  We will adopt this new guidance for our interim and annual reports beginning with the first quarter 2018.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SignificantAccountingPoliciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items for Significant accounting policies of the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SignificantAccountingPoliciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SignificantAccountingPoliciesTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for all significant accounting policies of the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18861-107790<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18780-107790<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18726-107790<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18743-107790<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18854-107790<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SignificantAccountingPoliciesTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>21
<FILENAME>R10.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6604043024">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>REGULATORY ASSETS AND LIABILITIES (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock', window );">Schedule of Regulatory Assets and Liabilities</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">2.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">REGULATORY ASSETS AND LIABILITIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The tables below present a summary of regulatory assets, net of amortization, and liabilities for the periods indicated:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:54%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:8%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">32,110</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">417,402</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">449,512</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">812</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,906</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">8,718</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4,019</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5,030</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,049</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">74,636</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">504,974</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">60,656</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">490,994</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) Included in other current liabilities in our Balance Sheets.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:54%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:8%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">December 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">31,498</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">427,448</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">458,946</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">812</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,108</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,920</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,274</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,966</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,240</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">83,146</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">523,668</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">71,224</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">511,746</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) Included in other current liabilities in our Balance Sheets.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Regulatory assets on our Balance Sheets, as authorized by various regulatory authorities, are probable of recovery.  Base rates are designed to provide a recovery of costs during the period rates are in effect, but do not generally provide for a return on investment for amounts we have deferred as regulatory assets.  All of our regulatory assets are subject to review by the respective regulatory authorities during future regulatory proceedings.  We are not aware of any evidence that these costs will not be recoverable through either riders or base rates, and we believe that we will be able to recover such costs, consistent with our historical recoveries.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for detailed information about regulatory assets and liabilities, including current and noncurrent assets created when regulatory agencies permit the deferral of costs to the balance sheet that would otherwise be required to appear on the company's income statement and would be charged against current expenses or revenues, as well as current and noncurrent liabilities created when regulatory agencies permit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfRegulatoryAssetsAndLiabilitiesTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>22
<FILENAME>R11.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807570544">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CREDIT FACILITIES (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Short-term Debt [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermDebtTextBlock', window );">Short-term Debt [Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">3.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">CREDIT FACILITY AND SHORT-TERM NOTES PAYABLE</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The ONE Gas Credit Agreement contains certain financial, operational and legal covenants.  Among other things, these covenants include maintaining ONE Gas&#8217; debt-to-capital ratio of no more than </font><font style="font-family:inherit;font-size:10pt;">70 percent</font><font style="font-family:inherit;font-size:10pt;"> at the end of any calendar quarter.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, our debt-to-capital ratio was </font><font style="font-family:inherit;font-size:10pt;">40 percent</font><font style="font-family:inherit;font-size:10pt;"> and we were in compliance with all covenants under the ONE Gas Credit Agreement.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have a commercial paper program under which we may issue unsecured commercial paper up to a maximum amount of </font><font style="font-family:inherit;font-size:10pt;">$700 million</font><font style="font-family:inherit;font-size:10pt;"> to fund short-term borrowing needs.  The maturities of the commercial paper notes may vary but may not exceed </font><font style="font-family:inherit;font-size:10pt;">270</font><font style="font-family:inherit;font-size:10pt;"> days from the date of issue.  The commercial paper notes are generally sold at par less a discount representing an interest factor.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The ONE Gas Credit Agreement is available to repay the commercial paper notes, if necessary.  Amounts outstanding under the commercial paper program reduce the borrowing capacity under the ONE Gas Credit Agreement.  At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">$85.4 million</font><font style="font-family:inherit;font-size:10pt;"> in short-term borrowings, </font><font style="font-family:inherit;font-size:10pt;">$1.8 million</font><font style="font-family:inherit;font-size:10pt;"> in letters of credit issued under the ONE Gas Credit Agreement and </font><font style="font-family:inherit;font-size:10pt;">$612.8 million</font><font style="font-family:inherit;font-size:10pt;"> of remaining credit available under the ONE Gas Credit Agreement.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermDebtTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for short-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.16)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.13)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermDebtTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>23
<FILENAME>R12.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6811393792">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>LONG-TERM DEBT (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtAbstract', window );"><strong>Long-term Debt, Unclassified [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtTextBlock', window );">Long-term Debt [Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">4.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">LONG-TERM DEBT</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have senior notes consisting of </font><font style="font-family:inherit;font-size:10pt;">$300 million</font><font style="font-family:inherit;font-size:10pt;"> of </font><font style="font-family:inherit;font-size:10pt;">2.07 percent</font><font style="font-family:inherit;font-size:10pt;"> senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2019</font><font style="font-family:inherit;font-size:10pt;">, </font><font style="font-family:inherit;font-size:10pt;">$300 million</font><font style="font-family:inherit;font-size:10pt;"> of </font><font style="font-family:inherit;font-size:10pt;">3.61 percent</font><font style="font-family:inherit;font-size:10pt;"> senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2024</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">$600 million</font><font style="font-family:inherit;font-size:10pt;"> of </font><font style="font-family:inherit;font-size:10pt;">4.658 percent</font><font style="font-family:inherit;font-size:10pt;"> senior notes due in </font><font style="font-family:inherit;font-size:10pt;">2044</font><font style="font-family:inherit;font-size:10pt;">.  The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of </font><font style="font-family:inherit;font-size:10pt;">$100 million</font><font style="font-family:inherit;font-size:10pt;"> or more.  Such events of default would entitle the trustee or the holders of </font><font style="font-family:inherit;font-size:10pt;">25 percent</font><font style="font-family:inherit;font-size:10pt;"> in aggregate principal amount of the outstanding Senior Notes to declare those Senior Notes immediately due and payable in full.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for long-term debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>24
<FILENAME>R13.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821045168">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EQUITY (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ClassOfStockLineItems', window );"><strong>Class of Stock [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityNoteDisclosureTextBlock', window );">Stockholders' Equity Note Disclosure [Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">5.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EQUITY</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Treasury Shares</font><font style="font-family:inherit;font-size:10pt;">&#160;- In the first quarter of 2017, we repurchased approximately&#160;</font><font style="font-family:inherit;font-size:10pt;">37 thousand</font><font style="font-family:inherit;font-size:10pt;">&#160;shares of our common stock for approximately&#160;</font><font style="font-family:inherit;font-size:10pt;">$2.5 million</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Dividends Declared - </font><font style="font-family:inherit;font-size:10pt;">In May 2017, we declared a dividend of </font><font style="font-family:inherit;font-size:10pt;">$0.42</font><font style="font-family:inherit;font-size:10pt;"> per share (</font><font style="font-family:inherit;font-size:10pt;">$1.68</font><font style="font-family:inherit;font-size:10pt;"> per share on an annualized basis) for shareholders of record as of May 15, 2017, payable June 1, 2017.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ClassOfStockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ClassOfStockLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityNoteDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(d),(e))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21484-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21488-112644<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 4<br> -Subparagraph (SAB TOPIC 4.C)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187143-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21506-112644<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6405834&amp;loc=d3e23285-112656<br><br>Reference 10: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21475-112644<br><br>Reference 11: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Preferred Stock<br> -URI http://asc.fasb.org/extlink&amp;oid=6521494<br><br>Reference 12: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 13: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21564-112644<br><br>Reference 14: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Staff Accounting Bulletin (SAB)<br> -Number Topic 4<br> -Section E<br><br>Reference 15: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Staff Accounting Bulletin (SAB)<br> -Number Topic 4<br> -Section C<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityNoteDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>25
<FILENAME>R14.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821605344">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNoteTextBlock', window );">Comprehensive Income (Loss) Note [Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">6.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;"> ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our Statements of Income for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.484375%;border-collapse:collapse;text-align:left;"><tr><td colspan="10" rowspan="1"></td></tr><tr><td style="width:47%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:23%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Details about Accumulated Other Comprehensive</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Affected Line Item in the</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Income (Loss) Components</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Statements of Income</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and other postemployment benefit plan obligations (a)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,648</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">10,037</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,499</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">9,129</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory adjustments (b)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,290</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(8,941</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">209</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">188</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income before income taxes</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(80</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(72</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income tax expense</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total reclassifications for the period</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost. See Note 8 for additional detail of our net periodic benefit cost</font><font style="font-family:inherit;font-size:9pt;font-weight:bold;">.</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(b) Regulatory adjustments represent pension and other postemployment benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.  See Note 2 for additional disclosures of regulatory assets and liabilities.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNoteTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e689-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=SL7669619-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e640-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e716-108580<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e709-108580<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e637-108580<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=36458714&amp;loc=d3e681-108580<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Reclassification Adjustments<br> -URI http://asc.fasb.org/extlink&amp;oid=6522872<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNoteTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>26
<FILENAME>R15.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6618218512">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EARNINGS PER SHARE (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems', window );"><strong>EARNINGS PER SHARE [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareTextBlock', window );">Earnings Per Share [Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">7.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EARNINGS PER SHARE</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Basic EPS is based on net income and is calculated based upon the daily weighted-average number of common shares outstanding during the periods presented.  Also, this calculation includes fully vested stock awards that have not yet been issued as common stock. Diluted EPS includes basic EPS, plus unvested stock awards granted under our compensation plans, but only to the extent these instruments dilute earnings per share. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="11" rowspan="1"></td></tr><tr><td style="width:62%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,576</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.45</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">480</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">53,056</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.44</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"><tr><td colspan="11" rowspan="1"></td></tr><tr><td style="width:62%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52,519</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.23</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">588</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">53,107</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.22</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for earnings per share.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1278-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1252-109256<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=32703322&amp;loc=d3e4984-109258<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>27
<FILENAME>R16.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6603943088">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EMPLOYEE BENEFIT PLANS (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems', window );"><strong>Employee Benefit Plans [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock', window );">EMPLOYEE BENEFIT PLANS</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">8.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">EMPLOYEE BENEFIT PLANS</font></div></td></tr></table><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the components of net periodic benefit cost for our pension and other postemployment benefit plans for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7" rowspan="1"></td></tr><tr><td style="width:68%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Pension Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,044</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,014</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,113</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">11,387</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(14,624</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(15,296</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,027</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,886</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,560</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">7,991</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7" rowspan="1"></td></tr><tr><td style="width:68%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Other Postemployment Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">627</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">638</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,472</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,627</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(3,147</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(3,071</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,621</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,151</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">424</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">437</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recover qualified pension benefit plan and other postemployment benefit plan costs through rates charged to our customers.  Certain utility commissions require that the recovery of these costs be based on specific guidelines.  The difference between these regulatory-based amounts and the periodic benefit cost calculated pursuant to GAAP is deferred as a regulatory asset or liability and amortized to expense over periods in which this difference will be recovered in rates, as authorized by the applicable utility commission.  Regulatory deferrals related to net periodic benefit cost were not material for the&#160;three months ended&#160;March 31, 2017.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for pension and other postretirement benefits.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 80<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=49170332&amp;loc=SL14450702-114947<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e2410-114920<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 60<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6414203&amp;loc=d3e39675-114964<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 70<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=49170846&amp;loc=d3e28014-114942<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 60<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6414199&amp;loc=d3e39622-114963<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>28
<FILENAME>R17.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6811319552">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>COMMITMENTS AND CONTINGENCIES (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_CommitmentsandContingenciesLineItems', window );"><strong>Commitments and Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock', window );">COMMITMENTS AND CONTINGENCIES</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">9.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">COMMITMENTS AND CONTINGENCIES</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Environmental Matters</font><font style="font-family:inherit;font-size:10pt;"> - We are subject to multiple historical, wildlife preservation and environmental laws and/or regulations, which affect many aspects of our present and future operations.  Regulated activities include, but are not limited to, those involving air emissions, storm water and wastewater discharges, handling and disposal of solid and hazardous wastes, wetland preservation, hazardous materials transportation, and pipeline and facility construction.  These laws and regulations require us to obtain and/or comply with a wide variety of environmental clearances, registrations, licenses, permits and other approvals.  Failure to comply with these laws, regulations, licenses and permits may expose us to fines, penalties and/or interruptions in our operations that could be material to our results of operations.  In addition, emission controls and/or other regulatory or permitting mandates under the Clean Air Act and other similar federal and state laws could require unexpected capital expenditures.  We cannot assure that existing environmental statutes and regulations will not be revised or that new regulations will not be adopted or become applicable to us.  Revised or additional statutes or regulations that result in increased compliance costs or additional operating restrictions could have a material adverse effect on our business, financial condition and results of operations.  Our expenditures for environmental investigation, and remediation compliance to-date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We own or retain legal responsibility for the environmental conditions at </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;"> former manufactured natural gas sites in Kansas.  These sites contain potentially harmful materials that are subject to control or remediation under various environmental laws and regulations.  A consent agreement with the KDHE governs all work at these sites.  The terms of the consent agreement require us to investigate these sites and set remediation activities based upon the results of the investigations and risk analysis.  Remediation typically involves the management of contaminated soils and may involve removal of structures and monitoring and/or remediation of groundwater.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have completed or addressed removal of the source of soil contamination at </font><font style="font-family:inherit;font-size:10pt;">11</font><font style="font-family:inherit;font-size:10pt;"> of the </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;"> sites, and continue to monitor groundwater at </font><font style="font-family:inherit;font-size:10pt;">eight</font><font style="font-family:inherit;font-size:10pt;"> of the </font><font style="font-family:inherit;font-size:10pt;">12</font><font style="font-family:inherit;font-size:10pt;"> sites according to plans approved by the KDHE.  Regulatory closure has been achieved at </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> of the sites, subject to any future regulatory remediation requirements that may require additional costs. During 2016, we completed a site assessment at the twelfth site where no active soil remediation has occurred.  We have submitted a work plan to the KDHE for approval to remove contaminated soil at this site.  Costs associated with the remediation at this site are not expected to be material to our results of operations or financial position. </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With regard to one of our former manufactured natural gas sites, periodic monitoring and a 2016 interim site investigation indicated elevated levels of potentially harmful materials.  Additional testing and work plan development is underway in 2017 to determine a remediation work plan to present to the KDHE for approval, which could impact our estimates of the cost of remediation at this site.  In the fourth quarter of 2016, we estimated the potential costs associated with additional investigation and remediation to be in the range of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;"> to </font><font style="font-family:inherit;font-size:10pt;">$7.0 million</font><font style="font-family:inherit;font-size:10pt;">.  A single reliable estimate of the remediation costs is not feasible due to the amount of uncertainty in the ultimate remediation approach that will be utilized.  Accordingly, we recorded a reserve of </font><font style="font-family:inherit;font-size:10pt;">$4.0 million</font><font style="font-family:inherit;font-size:10pt;"> for this site in the fourth quarter of 2016.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position, results of operations or cash flows, and our expenditures related to environmental matters had no material effects on earnings or cash flows during the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">.  A number of environmental issues may exist with respect to manufactured gas plants that are unknown to us.  Accordingly, future costs are dependent on the final determination and regulatory approval of any remedial actions, the complexity of the site, level of remediation required, changing technology and governmental regulations, and to the extent not recovered by insurance or recoverable in rates from our customers, could be material to our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">With the trend toward stricter standards, greater regulation and more extensive permit requirements for the types of assets operated by us that are subject to environmental regulation, our environmental expenditures could increase in the future, and such expenditures may not be fully recovered by insurance or recoverable in rates from our customers, and those costs may adversely affect our financial condition, results of operations and cash flows.  We do not expect expenditures for these matters to have a material adverse effect on our financial condition, results of operations or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Pipeline Safety</font><font style="font-family:inherit;font-size:10pt;"> - We are subject to PHMSA regulations, including integrity-management regulations. PHMSA regulations require pipeline companies operating high-pressure transmission pipelines to perform integrity assessments on pipeline segments that pass through densely populated areas or near specifically designated high-consequence areas. In January 2012, the Pipeline Safety, Regulatory Certainty and Job Creation Act was signed into law. The law increased maximum penalties for violating federal pipeline safety regulations and directs the DOT and the Secretary of Transportation to conduct further review or studies on issues that may or may not be material to us. These issues include, but are not limited to, the following:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">an evaluation of whether natural gas pipeline integrity-management requirements should be expanded beyond current high-consequence areas;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a verification of records for pipelines in class 3 and 4 locations and high-consequence areas to confirm maximum allowable operating pressures; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">a requirement to test previously untested pipelines operating above </font><font style="font-family:inherit;font-size:10pt;">30 percent</font><font style="font-family:inherit;font-size:10pt;"> yield strength in high-consequence areas.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In April 2016, PHMSA published a NPRM, the Safety of Gas Transmission &amp; Gathering Lines Rule, in the Federal Register to revise pipeline safety regulations applicable to the safety of onshore natural gas transmission and gathering pipelines.  Proposals include changes to pipeline integrity management requirements and other safety-related requirements.  The NPRM comment period ended July 7, 2016, and comments are under review by PHMSA.  The potential capital and operating expenditures associated with the NPRM are currently being evaluated and could be significant depending on the final regulations.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Legal Proceedings</font><font style="font-family:inherit;font-size:10pt;"> - We are a party to various litigation matters and claims that have arisen in the normal course of our operations.  While the results of litigation and claims cannot be predicted with certainty, we believe the reasonably possible losses from such matters, individually and in the aggregate, are not material.  Additionally, we believe the probable final outcome of such matters will not have a material adverse effect on our results of operations, financial position or cash flows.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_CommitmentsandContingenciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Disclosure of commitments and contingencies [Table]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_CommitmentsandContingenciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for commitments and contingencies.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6449706&amp;loc=d3e16207-108621<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 460<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=51674963&amp;loc=d3e12565-110249<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=25496072&amp;loc=d3e14435-108349<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 440<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6394976&amp;loc=d3e25287-109308<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingenciesDisclosureTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>29
<FILENAME>R18.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807570544">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Notes)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueDisclosuresTextBlock', window );">Fair Value Disclosures</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:0px;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">10.</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS</font></div></td></tr></table><div style="line-height:120%;text-align:left;padding-left:48px;text-indent:-48px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Treatment</font><font style="font-family:inherit;font-size:10pt;"> - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery.  The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If certain conditions are met, we may elect to designate a derivative instrument as a hedge to mitigate the risk of exposure to changes in fair values or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The table below summarizes the various ways in which we account for our derivative instruments and the impact on our financial statements:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5" rowspan="1"></td></tr><tr><td style="width:23%;" rowspan="1" colspan="1"></td><td style="width:3%;" rowspan="1" colspan="1"></td><td style="width:35%;" rowspan="1" colspan="1"></td><td style="width:3%;" rowspan="1" colspan="1"></td><td style="width:36%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Recognition and Measurement</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Accounting Treatment</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Balance Sheet</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income Statement</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">Normal purchases and</font></div><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">normal sales</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at historical cost</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value not recognized in earnings</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Mark-to-market</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at fair value</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value recognized in, and</font></div><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">recoverable through, the purchased-gas cost adjustment mechanisms</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have not elected to designate any of our derivative instruments as hedges.  Premiums paid and any cash settlements received associated with the commodity derivative instruments entered into by us are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Determining Fair Value</font><font style="font-family:inherit;font-size:10pt;"> - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.  We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed.  We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Fair Value Hierarchy</font><font style="font-family:inherit;font-size:10pt;"> - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value.  The levels of the hierarchy are described below:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date.  Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate.  These unobservable inputs are developed based on the best information available and may include our own internal data.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recognize transfers into and out of the levels as of the end of each reporting period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&#8217;s judgment regarding the degree to which market data is observable or corroborated by observable market data.  We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.  </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Derivative Instruments</font><font style="font-family:inherit;font-size:10pt;"> -</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#160; </font><font style="font-family:inherit;font-size:10pt;">At </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, we had </font><font style="font-family:inherit;font-size:10pt;">no</font><font style="font-family:inherit;font-size:10pt;"> purchased natural gas call options.  At </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, we held purchased natural gas call options for the heating season ended March 31, 2017, with total notional amounts of </font><font style="font-family:inherit;font-size:10pt;">14.3</font><font style="font-family:inherit;font-size:10pt;"> Bcf, for which we paid premiums of </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;">$5.4 million</font><font style="font-family:inherit;font-size:10pt;">, and had a fair value of </font><font style="font-family:Times New Roman;font-size:10pt;color:#000000;">$6.5 million</font><font style="font-family:inherit;font-size:10pt;">.  The premiums paid and any cash settlements received are recorded as part of our unrecovered purchased-gas costs in current regulatory assets as these contracts are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.  Additionally, changes in fair value associated with these contracts are deferred as part of our unrecovered purchased-gas costs in our Balance Sheets.  Our natural gas call options are classified as Level 1 as fair value amounts are based on unadjusted quoted prices in active markets including NYMEX-settled prices.  There were </font><font style="font-family:inherit;font-size:10pt;">no</font><font style="font-family:inherit;font-size:10pt;"> transfers between levels for the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;font-weight:normal;">March 31,</font><font style="font-family:inherit;font-size:10pt;"> </font><font style="font-family:inherit;font-size:10pt;">2017 and 2016</font><font style="font-family:inherit;font-size:10pt;">.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Other Financial Instruments</font><font style="font-family:inherit;font-size:10pt;"> -</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">&#160;</font><font style="font-family:inherit;font-size:10pt;">The approximate fair value of cash and cash equivalents, accounts receivable and accounts payable is equal to book value, due to the short-term nature of these items.  Our cash and cash equivalents are comprised of bank and money market accounts, and are classified as Level 1.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Short-term notes payable and commercial paper are due upon demand and, therefore, the carrying amounts approximate fair value and are classified as Level 1.  The book value of our long-term debt, including current maturities, was </font><font style="font-family:inherit;font-size:10pt;">$1.2 billion</font><font style="font-family:inherit;font-size:10pt;"> at both </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">.  The estimated fair value of our long-term debt, including current maturities, was </font><font style="font-family:inherit;font-size:10pt;">$1.2 billion</font><font style="font-family:inherit;font-size:10pt;"> at both </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, respectively.  The estimated fair value of our Senior Notes at </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;"> and </font><font style="font-family:inherit;font-size:10pt;">December&#160;31, 2016</font><font style="font-family:inherit;font-size:10pt;">, was determined using quoted market prices, and are considered Level 2.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueDisclosuresTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 820<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=36462937&amp;loc=d3e19207-110258<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 30<br> -URI http://asc.fasb.org/extlink&amp;oid=6957238&amp;loc=d3e14172-108612<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=6957238&amp;loc=d3e14064-108612<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 21<br> -URI http://asc.fasb.org/extlink&amp;oid=49121117&amp;loc=d3e13537-108611<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=49121117&amp;loc=d3e13504-108611<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=49121117&amp;loc=d3e13433-108611<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueDisclosuresTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>30
<FILENAME>R19.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807603888">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SignificantAccountingPoliciesLineItems', window );"><strong>Significant Accounting Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UseOfEstimates', window );">Use of Estimates</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates</font><font style="font-family:inherit;font-size:10pt;"> - The preparation of our financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Items that may be estimated include, but are not limited to, the economic useful life of assets, fair value of assets and liabilities, provision for doubtful accounts, unbilled revenues for natural gas delivered but for which meters have not been read, natural gas purchased but for which no invoice has been received, provision for income taxes, including any deferred tax valuation allowances, the results of litigation and various other recorded or disclosed amounts.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We evaluate these estimates on an ongoing basis using historical experience and other methods we consider reasonable based on the particular circumstances.  Nevertheless, actual results may differ significantly from the estimates.  Any effects on our financial position or results of operations from revisions to these estimates are recorded in the period when the facts that give rise to the revision become known.</font></div></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingPolicyPolicyTextBlock', window );">Segments</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Segments </font><font style="font-family:inherit;font-size:10pt;">- We operate in one reportable and operating business segment: regulated public utilities that deliver natural gas to residential, commercial, industrial, wholesale, public authority and transportation customers.  The accounting policies for our segment are the same as described in Note 1 of our Notes to the Financial Statements in our Annual Report.  We evaluate our financial performance principally on operating income.  For the </font><font style="font-family:inherit;font-size:10pt;">three</font><font style="font-family:inherit;font-size:10pt;"> months ended </font><font style="font-family:inherit;font-size:10pt;">March&#160;31, 2017</font><font style="font-family:inherit;font-size:10pt;">, and </font><font style="font-family:inherit;font-size:10pt;">2016</font><font style="font-family:inherit;font-size:10pt;">, we had no single external customer from which we received 10 percent or more of our gross revenues.</font></div></div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">Recently Issued Accounting Standards Update</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Recently Issued Accounting Standards Update</font><font style="font-family:inherit;font-size:10pt;">&#160;- In March 2017, the FASB issued ASU 2017-07, &#8220;Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,&#8221; which requires (1) separation of net periodic service costs for pension and other postemployment benefits into service cost and other components, (2) presentation of the service cost component in the same line as other compensation costs rendered by pertinent employees during the period, which will be the only portion of benefit cost eligible for capitalization and (3) reporting the other components of net periodic benefit costs separately from the service cost component and outside a subtotal of income from operations.&#160; We are evaluating the impact of this guidance, which is required to be adopted for our interim and annual reports for periods beginning after December 15, 2017, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In January 2017, the FASB issued ASU 2017-04, &#8220;Intangibles - Goodwill and Other (Topic 350):  Simplifying the Test for Goodwill Impairment,&#8221; which simplifies how an entity is required to test goodwill for impairment by eliminating Step 2 of the goodwill test, where the measurement of a goodwill impairment loss was determined by comparing the implied fair value of a reporting unit&#8217;s goodwill with the carrying amount of that goodwill.  Upon adoption, a goodwill impairment will be the amount by which a reporting unit&#8217;s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.&#160; This new guidance is required for our interim and annual reports for periods beginning after December 15, 2019, and early adoption is permitted.  We do not expect this guidance to have a material impact on our financial statements and will adjust our goodwill testing procedures accordingly upon adoption.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:13px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In March 2016, the FASB issued ASU 2016-09, &#8220;Improvements to Employee Share-Based Payment Accounting,&#8221; which includes various new aspects to simplify how share-based payments are accounted for and presented in the financial statements. The new standard modifies several aspects of the accounting and reporting for employee share-based payments and related tax accounting impacts, including the presentation in the statements of operations and cash flows.  We adopted this new guidance in the current quarter, and in accordance with the transition requirements, we recorded </font><font style="font-family:inherit;font-size:10pt;">$5.2 million</font><font style="font-family:inherit;font-size:10pt;"> of excess tax benefits in income tax expense and will transition all provisions of this new guidance prospectively, other than our presentation of our withholding shares for tax-withholding purposes, which will be accounted for retrospectively in the financing activities section of the statement of cash flows.  We recorded a noncash cumulative-effect increase of&#160;</font><font style="font-family:inherit;font-size:10pt;">$11.0 million</font><font style="font-family:inherit;font-size:10pt;">&#160;to retained earnings, with an offset to a deferred tax asset, as of the beginning of the reporting period in 2017, for excess tax benefits earned prior to January 1, 2017, that had not been recognized. We continue our use of the estimation method to account for share unit awards forfeitures rather than actual forfeitures. The retrospective impact of our withholding shares for tax-withholding purposes to our Statement of Cash Flows for the three months ended March 31, 2016, was a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;increase to net cash provided by operating activities and a&#160;</font><font style="font-family:inherit;font-size:10pt;">$8.8 million</font><font style="font-family:inherit;font-size:10pt;">&#160;decrease to net cash used in financing activities.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In February 2016, the FASB issued ASU 2016-02, &#8220;Leases (Topic 842),&#8221; which prescribes recognizing lease assets and liabilities on the balance sheet and includes disclosure of key information about leasing arrangements.  &#160;A modified retrospective transition approach is required for leases existing at the time of adoption.  We are evaluating our population of leases, analyzing lease agreements, and holding meetings with cross-functional teams to determine the potential impact of this accounting standard on our financial position and results of operations and the transition approach we will utilize.  This new guidance is required for our interim and annual reports for periods beginning after December 15, 2018, and early adoption is permitted.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In May 2014, the FASB issued ASU 2014-09, &#8220;Revenue from Contracts with Customers,&#8221; which clarifies and converges the revenue recognition principles under GAAP and International Financial Reporting Standards. In July 2015, FASB delayed the effective date for one year.  We have substantially completed evaluating all of our sources of revenue to determine the potential effect on our financial position, results of operations, cash flows and the related accounting policies and business processes.  We continue to monitor accounting task forces and the FASB for additional implementation guidance related to: (1)  the accounting for funds received from third parties to partially or fully reimburse the cost of construction of an asset; (2) the evaluation of collectability from customers if a utility has regulatory mechanisms to help assure recovery of uncollected accounts from ratepayers; and (3) the accounting for alternative revenue programs, such as performance-based ratemaking and weather normalization, that may impact the final conclusions of our evaluation.  Until these items are resolved, we cannot complete our evaluation of the potential effect the new guidance will have on our financial position,  results of operations, cash flows, business processes or the transition method we will utilize to adopt the new guidance.  We will adopt this new guidance for our interim and annual reports beginning with the first quarter 2018.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SignificantAccountingPoliciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items for Significant accounting policies of the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SignificantAccountingPoliciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SegmentReportingPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for segment reporting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18780-107790<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SegmentReportingPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UseOfEstimates">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6061-108592<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6143-108592<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 275<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=51801978&amp;loc=d3e6132-108592<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UseOfEstimates</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>31
<FILENAME>R20.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807327600">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_DerivativesandFairValueMeasurementAbstract', window );"><strong>Derivatives and Fair Value Measurement [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DerivativesReportingOfDerivativeActivity', window );">Derivatives</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Accounting Treatment</font><font style="font-family:inherit;font-size:10pt;"> - We record all derivative instruments at fair value, with the exception of normal purchases and normal sales that are expected to result in physical delivery.  The accounting for changes in the fair value of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and, if so, the reason for holding it, or if regulatory rulings require a different accounting treatment.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">If certain conditions are met, we may elect to designate a derivative instrument as a hedge to mitigate the risk of exposure to changes in fair values or cash flows.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The table below summarizes the various ways in which we account for our derivative instruments and the impact on our financial statements:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="5" rowspan="1"></td></tr><tr><td style="width:23%;" rowspan="1" colspan="1"></td><td style="width:3%;" rowspan="1" colspan="1"></td><td style="width:35%;" rowspan="1" colspan="1"></td><td style="width:3%;" rowspan="1" colspan="1"></td><td style="width:36%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Recognition and Measurement</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Accounting Treatment</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Balance Sheet</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income Statement</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">Normal purchases and</font></div><div style="vertical-align:top;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;vertical-align:top;">normal sales</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at historical cost</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value not recognized in earnings</font></div></td></tr><tr><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Mark-to-market</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Recorded at fair value</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">-</font></div></td><td style="vertical-align:top;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Change in fair value recognized in, and</font></div><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">recoverable through, the purchased-gas cost adjustment mechanisms</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We have not elected to designate any of our derivative instruments as hedges.  Premiums paid and any cash settlements received associated with the commodity derivative instruments entered into by us are included in, and recoverable through, the purchased-gas cost adjustment mechanisms.</font></div></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueMeasurementPolicyPolicyTextBlock', window );">Fair Value Measurement</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Determining Fair Value</font><font style="font-family:inherit;font-size:10pt;"> - We define fair value as the price that would be received from the sale of an asset or the transfer of a liability in an orderly transaction between market participants at the measurement date.  We use the market and income approaches to determine the fair value of our assets and liabilities and consider the markets in which the transactions are executed.  We measure the fair value of a group of financial assets and liabilities consistent with how a market participant would price the net risk exposure at the measurement date.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;padding-bottom:8px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;text-decoration:underline;">Fair Value Hierarchy</font><font style="font-family:inherit;font-size:10pt;"> - At each balance sheet date, we utilize a fair value hierarchy to classify fair value amounts recognized or disclosed in our financial statements based on the observability of inputs used to estimate such fair value.  The levels of the hierarchy are described below:</font></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities;</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 2 - Significant observable pricing inputs other than quoted prices included within Level 1 that are, either directly or indirectly, observable as of the reporting date.  Essentially, this represents inputs that are derived principally from or corroborated by observable market data; and</font></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;" rowspan="1" colspan="1"></td><td rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:top" rowspan="1" colspan="1"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><font style="font-family:inherit;font-size:10pt;">&#8226;</font></div></td><td style="vertical-align:top;" rowspan="1" colspan="1"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Level 3 - May include one or more unobservable inputs that are significant in establishing a fair value estimate.  These unobservable inputs are developed based on the best information available and may include our own internal data.</font></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We recognize transfers into and out of the levels as of the end of each reporting period.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Determining the appropriate classification of our fair value measurements within the fair value hierarchy requires management&#8217;s judgment regarding the degree to which market data is observable or corroborated by observable market data.  We categorize derivatives for which fair value is determined using multiple inputs within a single level, based on the lowest level input that is significant to the fair value measurement in its entirety.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_DerivativesandFairValueMeasurementAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Derivatives and Fair Value Measurement [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_DerivativesandFairValueMeasurementAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DerivativesReportingOfDerivativeActivity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for derivatives entered into for trading purposes and those entered into for purposes other than trading including where and when derivative financial instruments and derivative commodity instruments and their related gains or losses are reported in the entity's statements of financial position, cash flows, and results of operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=51655414&amp;loc=d3e18780-107790<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=56946850&amp;loc=SL5579240-113959<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(n)(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DerivativesReportingOfDerivativeActivity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueMeasurementPolicyPolicyTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueMeasurementPolicyPolicyTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>32
<FILENAME>R21.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807391456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>REGULATORY ASSETS AND LIABILITIES (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock', window );">SCHEDULE OF REGULATED ASSETS AND LIABILITIES</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The tables below present a summary of regulatory assets, net of amortization, and liabilities for the periods indicated:</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:54%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:8%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">17,914</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">32,110</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">417,402</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">449,512</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">19,781</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">812</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,906</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">8,718</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">4,019</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">5,030</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,049</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">74,636</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">504,974</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(12,838</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,142</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(13,980</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">60,656</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">430,338</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">490,994</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) Included in other current liabilities in our Balance Sheets.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="15" rowspan="1"></td></tr><tr><td style="width:54%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:8%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:7%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">December 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Current</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Noncurrent</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Total</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="11" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;text-align:center;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;text-align:center;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;text-align:center;">)</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Under-recovered purchased-gas costs</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">29,901</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and postemployment benefit costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">31,498</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">427,448</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">458,946</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Weather normalization</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">17,661</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Reacquired debt costs</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">812</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,108</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,920</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Other</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,274</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4,966</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,240</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory assets, net of amortization</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">83,146</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">523,668</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Over-recovered purchased-gas costs (a)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(10,154</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Ad valorem tax (a)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(1,768</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total regulatory liabilities</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(11,922</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net regulatory assets (liabilities)</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">71,224</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">440,522</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">511,746</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;"></font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Table Text Block] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>33
<FILENAME>R22.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6811273200">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock', window );">Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following table sets forth the effect of reclassifications from accumulated other comprehensive income (loss) in our Statements of Income for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:96.484375%;border-collapse:collapse;text-align:left;"><tr><td colspan="10" rowspan="1"></td></tr><tr><td style="width:47%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:12%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:23%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Details about Accumulated Other Comprehensive</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Affected Line Item in the</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Income (Loss) Components</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">&#160;Statements of Income</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="7" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Pension and other postemployment benefit plan obligations (a)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,648</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">10,037</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="padding-bottom:6px;padding-top:6px;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,499</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">9,129</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Regulatory adjustments (b)</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(9,290</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(8,941</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">209</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">188</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income before income taxes</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(80</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(72</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Income tax expense</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total reclassifications for the period</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">129</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">116</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(a) These components of accumulated other comprehensive income (loss) are included in the computation of net periodic benefit cost. See Note 8 for additional detail of our net periodic benefit cost</font><font style="font-family:inherit;font-size:9pt;font-weight:bold;">.</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(b) Regulatory adjustments represent pension and other postemployment benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.  See Note 2 for additional disclosures of regulatory assets and liabilities.</font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>34
<FILENAME>R23.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6808724608">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EARNINGS PER SHARE (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems', window );"><strong>EARNINGS PER SHARE [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock', window );">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the computation of basic and diluted EPS from continuing operations for the periods indicated:</font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="11" rowspan="1"></td></tr><tr><td style="width:62%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2017</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">52,576</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.45</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">480</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">76,456</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">53,056</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1.44</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.609375%;border-collapse:collapse;text-align:left;"><tr><td colspan="11" rowspan="1"></td></tr><tr><td style="width:62%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:11%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:10%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended March 31, 2016</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Income</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Shares</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Per Share</font></div><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Amount</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="10" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands, except per share amounts</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Basic EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">52,519</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.23</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Diluted EPS Calculation</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Effect of dilutive securities</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#8212;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">588</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net income available for common stock and common stock equivalents</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">64,743</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">53,107</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1.22</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_EARNINGSPERSHAREOFCOMMONSTOCKBASICANDDILUTEDLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>35
<FILENAME>R24.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807410688">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EMPLOYEE BENEFIT PLANS (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems', window );"><strong>Employee Benefit Plans [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock', window );">Schedule of Net Benefit Costs [Table Text Block]</a></td>
<td class="text"><div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The following tables set forth the components of net periodic benefit cost for our pension and other postemployment benefit plans for the periods indicated:</font><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7" rowspan="1"></td></tr><tr><td style="width:68%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Pension Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">3,044</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3,014</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">10,113</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">11,387</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(14,624</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(15,296</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">9,027</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">8,886</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">7,560</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">7,991</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="7" rowspan="1"></td></tr><tr><td style="width:68%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td><td style="width:14%;" rowspan="1" colspan="1"></td><td style="width:1%;" rowspan="1" colspan="1"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Other Postemployment Benefits</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Three Months Ended</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">March 31,</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2017</font></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:2px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2016</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td colspan="6" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(</font><font style="font-family:inherit;font-size:9pt;font-style:italic;">Thousands of dollars</font><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">Components of net periodic benefit cost</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Service cost</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">627</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">638</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Interest cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">2,472</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2,627</font></div></td><td style="vertical-align:bottom;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Expected return on assets</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(3,147</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(3,071</font></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of unrecognized prior service cost</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">(1,149</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">)</font></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(908</font></div></td><td style="vertical-align:bottom;padding-right:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">)</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amortization of net loss</font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">1,621</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1,151</font></div></td><td style="vertical-align:bottom;border-bottom:2px solid #000000;background-color:#cceeff;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:12px;padding-top:2px;padding-bottom:2px;padding-right:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Net periodic benefit cost</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;font-weight:bold;">424</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">$</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">437</font></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:2px solid #000000;" rowspan="1" colspan="1"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></td></tr></table></div></div></div><span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfNetBenefitCostsTableTextBlock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>nonnum:textBlockItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>36
<FILENAME>R25.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6820830416">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)<br> number in Millions, $ in Millions</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Mar. 31, 2017 </div>
<div>USD ($)</div>
</th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SignificantAccountingPoliciesLineItems', window );"><strong>Significant Accounting Policies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_NumberOfNaturalGasDistributionServicesCustomers', window );">Number of natural gas distribution services customers</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingDisclosureOfMajorCustomers', window );">Segment Reporting, Disclosure of Major Customers</a></td>
<td class="text">0<span></span>
</td>
<td class="text">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation', window );">Excess tax benefit related to the share-based compensation provision</a></td>
<td class="nump">$ 5.2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_OperatingLossCarryforwardsTaxBenefit', window );">Operating loss carryforward related to the share-based compensation provision</a></td>
<td class="nump">11.0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PriorPeriodReclassificationAdjustment', window );">Prior period cash flow reclass related to the share-based compensation provision</a></td>
<td class="nump">$ 8.8<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_NumberOfNaturalGasDistributionServicesCustomers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of customers the natural gas distribution service segment services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_NumberOfNaturalGasDistributionServicesCustomers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_OperatingLossCarryforwardsTaxBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount recorded as a deferred tax asset related to the adoption of ASU 2016-09, which represents an operating loss carryforward tax benefit available to reduce future taxable income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_OperatingLossCarryforwardsTaxBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SignificantAccountingPoliciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items for Significant accounting policies of the reporting entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SignificantAccountingPoliciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PriorPeriodReclassificationAdjustment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of a reclassification adjustment made to prior period financial statement amounts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PriorPeriodReclassificationAdjustment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate cash inflow comprised of the amount received from (a) employees to acquire the entity's shares under incentive awards, including stock option exercises and restricted stock arrangements, and (b) the excess tax benefit arising from such transactions.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsAndExcessTaxBenefitFromSharebasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SegmentReportingDisclosureOfMajorCustomers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of the extent of enterprise reliance on its major customers. For example, includes revenues from transactions with a single external customer amounting to 10 percent or more of the entity's revenues, the total amount of revenues from each such customer, and the identity of the segment or segments reporting the revenues. A group of entities that the entity knows to be under common control generally will be considered a single customer for inclusion in this item. The federal government, a state government, a local government (for example, a county or municipality), or a foreign government each will generally be considered as a single customer for inclusion in this item.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 42<br> -URI http://asc.fasb.org/extlink&amp;oid=51669610&amp;loc=d3e9054-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SegmentReportingDisclosureOfMajorCustomers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>37
<FILENAME>R26.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6822130144">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>REGULATORY ASSETS AND LIABILITIES (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Dec. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">$ 74,636<span></span>
</td>
<td class="nump">$ 83,146<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">430,338<span></span>
</td>
<td class="nump">440,522<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Netregulatoryassetsandliabilitiescurrent', window );">Net regulatory assets (liabilities), current</a></td>
<td class="nump">60,656<span></span>
</td>
<td class="nump">71,224<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Netregulatoryassetsandliabilitiesnoncurrent', window );">Net regulatory assets (liabilities), noncurrent</a></td>
<td class="nump">430,338<span></span>
</td>
<td class="nump">440,522<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetRegulatoryAssets', window );">Net Regulatory Assets</a></td>
<td class="nump">490,994<span></span>
</td>
<td class="nump">511,746<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityAxis=ogs_OverrecoveredpurchasedgascostsMember', window );">Over-recovered purchased-gas costs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityCurrent', window );">Regulatory Liability, Current</a></td>
<td class="num">(12,838)<span></span>
</td>
<td class="num">(10,154)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityNoncurrent', window );">Regulatory Liability, Noncurrent</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilities', window );">Regulatory Liabilities</a></td>
<td class="num">(12,838)<span></span>
</td>
<td class="num">(10,154)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityAxis=ogs_AdvaloremtaxMember', window );">Ad valorem tax [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityCurrent', window );">Regulatory Liability, Current</a></td>
<td class="num">(1,142)<span></span>
</td>
<td class="num">(1,768)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityNoncurrent', window );">Regulatory Liability, Noncurrent</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilities', window );">Regulatory Liabilities</a></td>
<td class="num">(1,142)<span></span>
</td>
<td class="num">(1,768)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityAxis=ogs_TotalregulatedliabilitiesMember', window );">Total regulated liabilities [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityCurrent', window );">Regulatory Liability, Current</a></td>
<td class="num">(13,980)<span></span>
</td>
<td class="num">(11,922)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilityNoncurrent', window );">Regulatory Liability, Noncurrent</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryLiabilities', window );">Regulatory Liabilities</a></td>
<td class="num">(13,980)<span></span>
</td>
<td class="num">(11,922)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=ogs_UnderrecoveredpurchasedgascostsMember', window );">Under-recovered purchased-gas costs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">17,914<span></span>
</td>
<td class="nump">29,901<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">17,914<span></span>
</td>
<td class="nump">29,901<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=us-gaap_PensionCostsMember', window );">Pension and postretirement benefit costs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">32,110<span></span>
</td>
<td class="nump">31,498<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">417,402<span></span>
</td>
<td class="nump">427,448<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">449,512<span></span>
</td>
<td class="nump">458,946<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=ogs_WeathernormalizationMember', window );">Weather normalization [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">19,781<span></span>
</td>
<td class="nump">17,661<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">19,781<span></span>
</td>
<td class="nump">17,661<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=us-gaap_LossOnReacquiredDebtMember', window );">Reacquired debt costs [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">812<span></span>
</td>
<td class="nump">812<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">7,906<span></span>
</td>
<td class="nump">8,108<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">8,718<span></span>
</td>
<td class="nump">8,920<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=ogs_OtherregulatoryassetsMember', window );">Other regulatory assets [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">4,019<span></span>
</td>
<td class="nump">3,274<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">5,030<span></span>
</td>
<td class="nump">4,966<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">9,049<span></span>
</td>
<td class="nump">8,240<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetAxis=ogs_TotalregulatoryassetsnetofamortizationMember', window );">Total regulatory assets, net of amortization [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems', window );"><strong>SCHEDULE OF REGULATED ASSETS AND LIABILITIES [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsCurrent', window );">Regulatory Assets, Current</a></td>
<td class="nump">74,636<span></span>
</td>
<td class="nump">83,146<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssetsNoncurrent', window );">Regulatory Assets, Noncurrent</a></td>
<td class="nump">430,338<span></span>
</td>
<td class="nump">440,522<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RegulatoryAssets', window );">Regulatory Assets</a></td>
<td class="nump">$ 504,974<span></span>
</td>
<td class="nump">$ 523,668<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Netregulatoryassetsandliabilitiescurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of all current regulatory assets less all current regulatory liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Netregulatoryassetsandliabilitiescurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Netregulatoryassetsandliabilitiesnoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of noncurrent regulatory assets less all noncurrent regulatory liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Netregulatoryassetsandliabilitiesnoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Tabular disclosure of assets and liabilities that result from rate actions of a regulator.  Regulatory assets are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet.  Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_SCHEDULEOFREGULATEDASSETSANDLIABILITIESLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetRegulatoryAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net amount of all regulatory assets less all regulatory liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetRegulatoryAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6499975&amp;loc=d3e44250-110382<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 405<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6500807&amp;loc=d3e48068-110394<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount for the individual regulatory current liability as itemized in a table of regulatory current liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 980<br> -SubTopic 405<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6500807&amp;loc=d3e48068-110394<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilityAxis=ogs_OverrecoveredpurchasedgascostsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilityAxis=ogs_OverrecoveredpurchasedgascostsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilityAxis=ogs_AdvaloremtaxMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilityAxis=ogs_AdvaloremtaxMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryLiabilityAxis=ogs_TotalregulatedliabilitiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryLiabilityAxis=ogs_TotalregulatedliabilitiesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=ogs_UnderrecoveredpurchasedgascostsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=ogs_UnderrecoveredpurchasedgascostsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=us-gaap_PensionCostsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=us-gaap_PensionCostsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=ogs_WeathernormalizationMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=ogs_WeathernormalizationMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=us-gaap_LossOnReacquiredDebtMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=us-gaap_LossOnReacquiredDebtMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=ogs_OtherregulatoryassetsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=ogs_OtherregulatoryassetsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RegulatoryAssetAxis=ogs_TotalregulatoryassetsnetofamortizationMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RegulatoryAssetAxis=ogs_TotalregulatoryassetsnetofamortizationMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>38
<FILENAME>R27.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807617456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>CREDIT FACILITIES (Details)<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2017 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Short-term Debt [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RatioOfIndebtednessToNetCapital1', window );">Ratio of Indebtedness to Net Capital</a></td>
<td class="nump">0.4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Commercialpapermaximumborrowingcapacity', window );">Commercial paper maximum borrowing capacity</a></td>
<td class="nump">$ 700.0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShortTermBorrowings', window );">Short-term Debt</a></td>
<td class="nump">85.4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LettersOfCreditOutstandingAmount', window );">Letters of Credit Outstanding, Amount</a></td>
<td class="nump">1.8<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity', window );">Line of Credit Facility, Remaining Borrowing Capacity</a></td>
<td class="nump">$ 612.8<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Commercialpapermaximumborrowingcapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Maximum borrowing capacity under the commercial paper program.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Commercialpapermaximumborrowingcapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LettersOfCreditOutstandingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LettersOfCreditOutstandingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(b),22(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RatioOfIndebtednessToNetCapital1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indebtedness divided by net capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RatioOfIndebtednessToNetCapital1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermBorrowings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.13)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),16(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 13<br> -Subparagraph 2, 3<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermBorrowings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>39
<FILENAME>R28.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6820828640">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>LONG-TERM DEBT (Details)<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2017 </div>
<div>USD ($)</div>
</th></tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2019Member', window );">Note Payable Due 2019 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCovenantDescription', window );">Debt Instrument, Covenant Description</a></td>
<td class="text">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Long-term Debt, Gross</a></td>
<td class="nump">$ 300<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">2.07%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2024Member', window );">Note Payable Due 2024 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCovenantDescription', window );">Debt Instrument, Covenant Description</a></td>
<td class="text">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Long-term Debt, Gross</a></td>
<td class="nump">$ 300<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">3.61%<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongtermDebtTypeAxis=ogs_NotesPayableDue2044Member', window );">Notes Payable Due 2044 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentLineItems', window );"><strong>Debt Instrument [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCovenantDescription', window );">Debt Instrument, Covenant Description</a></td>
<td class="text">The indenture governing our Senior Notes includes an event of default upon the acceleration of other indebtedness of $100 million or more.  Such events of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding Senior Notes to declare those senior notes immediately due and payable in full.<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Long-term Debt, Gross</a></td>
<td class="nump">$ 600<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">4.658%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 20<br> -Article 5<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 16<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentCarryingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentCovenantDescription">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Description of minimum financial levels (for example, tangible net worth and working capital) and achievement of certain financial ratios (for example, working capital ratio and debt service coverage ratio), and adherence to certain clauses which generally require or restrict certain actions (for example, entering into a debt arrangement with equal or greater seniority, and selling or discontinuing a certain business segment or material subsidiary) to be in compliance with the covenant clauses of the debt agreement. May also include a discussion of the adverse consequences that would result if the entity violates or fails to satisfy the covenants.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=6479336&amp;loc=d3e64711-112823<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 22<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentCovenantDescription</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2019Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2019Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2024Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=ogs_NotePayableDue2024Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongtermDebtTypeAxis=ogs_NotesPayableDue2044Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongtermDebtTypeAxis=ogs_NotesPayableDue2044Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>40
<FILENAME>R29.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6810500000">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EQUITY (Details) - USD ($)<br> $ / shares in Units, shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Jun. 30, 2017</div></th>
<th class="th"><div>Mar. 31, 2017</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockSharesAcquired', window );">Treasury stock acquired, shares</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">37<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TreasuryStockValueAcquiredCostMethod', window );">Treasury stock acquired, value</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,469<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember', window );">Subsequent Event [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockDividendsPerShareDeclared', window );">Common Stock, Dividends, Per Share, Declared</a></td>
<td class="nump">$ 0.42<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_CommonStockDividendsDeclaredAnnualizedBasis', window );">Common Stock, Dividends, Declared, Annualized Basis</a></td>
<td class="nump">$ 1.68<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_CommonStockDividendsDeclaredAnnualizedBasis">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Dividends declared during the period for each share of common stock outstanding, on an annualized basis.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_CommonStockDividendsDeclaredAnnualizedBasis</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockDividendsPerShareDeclared">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate dividends declared during the period for each share of common stock outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockDividendsPerShareDeclared</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockSharesAcquired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares that have been repurchased during the period and are being held in treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 29, 30<br> -Article 5<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Article 3<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockSharesAcquired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TreasuryStockValueAcquiredCostMethod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6405813&amp;loc=d3e23239-112655<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TreasuryStockValueAcquiredCostMethod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>41
<FILENAME>R30.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6807342480">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems', window );"><strong>Accumulated Other Comprehensive Income (Loss) [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses', window );">Amortization of net loss</a></td>
<td class="nump">$ 10,648<span></span>
</td>
<td class="nump">$ 10,037<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit', window );">Amortization of unrecognized prior service cost</a></td>
<td class="num">(1,149)<span></span>
</td>
<td class="num">(908)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments', window );">Reclassification adjustment, before tax and regulatory adjustments</a></td>
<td class="nump">9,499<span></span>
</td>
<td class="nump">9,129<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments', window );">Regulatory adjustments</a></td>
<td class="num">(9,290)<span></span>
</td>
<td class="num">(8,941)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax', window );">Reclassification adjustment, before tax</a></td>
<td class="nump">209<span></span>
</td>
<td class="nump">188<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax', window );">Reclassification adjustment, Tax</a></td>
<td class="num">(80)<span></span>
</td>
<td class="num">(72)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax', window );">Reclassification adjustment, net of tax</a></td>
<td class="nump">$ 129<span></span>
</td>
<td class="nump">$ 116<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Other comprehensive income (loss) reclassification - Regulatory adjustments represent pension and other postretirement benefit costs expected to be recovered through rates and are deferred as part of our regulatory assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_OthercomprehensiveincomelossreclassificationRegulatoryadjustments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Other comprehensive income (loss) reclassification adjustment, before tax and regulatory adjustments</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Othercomprehensiveincomelossreclassificationadjustmentbeforetaxandregulatoryadjustments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of gains or losses recognized in net periodic benefit cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Prior Service Cost<br> -URI http://asc.fasb.org/extlink&amp;oid=49177896<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of reclassification adjustment from accumulated other comprehensive (income) loss related to net period benefit cost (credit) for pension and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>42
<FILENAME>R31.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6822474992">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EARNINGS PER SHARE (Details) - USD ($)<br> $ / shares in Units, shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_BasicEPSCalculationAbstract', window );"><strong>Basic EPS Calculation</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income available for common stock</a></td>
<td class="nump">$ 76,456<span></span>
</td>
<td class="nump">$ 64,743<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Weighted Average Number of Shares Outstanding, Basic</a></td>
<td class="nump">52,576<span></span>
</td>
<td class="nump">52,519<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasic', window );">Earnings Per Share, Basic</a></td>
<td class="nump">$ 1.45<span></span>
</td>
<td class="nump">$ 1.23<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_DilutedEPSCalculationAbstract', window );"><strong>Diluted EPS Calculation</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income available for common stock</a></td>
<td class="nump">$ 76,456<span></span>
</td>
<td class="nump">$ 64,743<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DilutiveSecurities', window );">Effect of dilutive securities on income</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment', window );">Effect of dilutive securities on shares</a></td>
<td class="nump">480<span></span>
</td>
<td class="nump">588<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Weighted Average Number of Shares Outstanding, Diluted</a></td>
<td class="nump">53,056<span></span>
</td>
<td class="nump">53,107<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Earnings Per Share, Diluted</a></td>
<td class="nump">$ 1.44<span></span>
</td>
<td class="nump">$ 1.22<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_BasicEPSCalculationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Basic EPS Calculation [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_BasicEPSCalculationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_DilutedEPSCalculationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Diluted EPS Calculation [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_DilutedEPSCalculationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DilutiveSecurities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DilutiveSecurities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=32703322&amp;loc=d3e4984-109258<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1252-109256<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.23)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 18<br> -Article 7<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 20<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 21<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1252-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 18<br> -Article 7<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 20<br> -Article 5<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 21<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=56944662&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=26872669&amp;loc=d3e20235-122688<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 03<br> -Paragraph 19<br> -Article 5<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 04<br> -Paragraph 20<br> -Article 9<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=7655603&amp;loc=d3e1448-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Weighted-Average Number of Common Shares Outstanding<br> -URI http://asc.fasb.org/extlink&amp;oid=6528421<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>43
<FILENAME>R32.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6821624832">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>EMPLOYEE BENEFIT PLANS (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2017</div></th>
<th class="th"><div>Mar. 31, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_ComponentsofnetperiodicbenefitcostAbstract', window );"><strong>Components of net periodic benefit cost:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit', window );">Amortization of unrecognized prior service cost</a></td>
<td class="num">$ (1,149)<span></span>
</td>
<td class="num">$ (908)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses', window );">Amortization of net loss</a></td>
<td class="nump">10,648<span></span>
</td>
<td class="nump">10,037<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_PensionPlansDefinedBenefitMember', window );">ONE Gas Pension Plans [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_ComponentsofnetperiodicbenefitcostAbstract', window );"><strong>Components of net periodic benefit cost:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanServiceCost', window );">Service cost</a></td>
<td class="nump">3,044<span></span>
</td>
<td class="nump">3,014<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanInterestCost', window );">Interest cost</a></td>
<td class="nump">10,113<span></span>
</td>
<td class="nump">11,387<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets', window );">Expected return on assets</a></td>
<td class="num">(14,624)<span></span>
</td>
<td class="num">(15,296)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses', window );">Amortization of net loss</a></td>
<td class="nump">9,027<span></span>
</td>
<td class="nump">8,886<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost', window );">Net periodic benefit cost</a></td>
<td class="nump">7,560<span></span>
</td>
<td class="nump">7,991<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember', window );">ONE Gas Postretirement Benefit Plans [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_ComponentsofnetperiodicbenefitcostAbstract', window );"><strong>Components of net periodic benefit cost:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanServiceCost', window );">Service cost</a></td>
<td class="nump">627<span></span>
</td>
<td class="nump">638<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanInterestCost', window );">Interest cost</a></td>
<td class="nump">2,472<span></span>
</td>
<td class="nump">2,627<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets', window );">Expected return on assets</a></td>
<td class="num">(3,147)<span></span>
</td>
<td class="num">(3,071)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit', window );">Amortization of unrecognized prior service cost</a></td>
<td class="num">(1,149)<span></span>
</td>
<td class="num">(908)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses', window );">Amortization of net loss</a></td>
<td class="nump">1,621<span></span>
</td>
<td class="nump">1,151<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost', window );">Net periodic benefit cost</a></td>
<td class="nump">$ 424<span></span>
</td>
<td class="nump">$ 437<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_ComponentsofnetperiodicbenefitcostAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Components of net periodic benefit cost: [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_ComponentsofnetperiodicbenefitcostAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of gains or losses recognized in net periodic benefit cost.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of the prior service cost or credit recognized in net periodic benefit cost relating to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Prior Service Cost<br> -URI http://asc.fasb.org/extlink&amp;oid=49177896<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Expected Return on Plan Assets<br> -URI http://asc.fasb.org/extlink&amp;oid=6512171<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanInterestCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanInterestCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (j)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlanServiceCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Service Cost (Component of Net Periodic Pension Cost)<br> -URI http://asc.fasb.org/extlink&amp;oid=6525008<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (h)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=58740216&amp;loc=d3e1928-114920<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlanServiceCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_PensionPlansDefinedBenefitMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_PensionPlansDefinedBenefitMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>R33.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6810387952">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>COMMITMENTS AND CONTINGENCIES (Details)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2017</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_CommitmentsandContingenciesLineItems', window );"><strong>Commitments and Contingencies [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions', window );">Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions</a></td>
<td class="nump">12<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion', window );">Number of sites where we have completed or addressed removal of the source of soil contamination according to plans approved by KDHE.</a></td>
<td class="nump">11<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Numberofsiteswithongoinggroundwatermonitoring', window );">Number of sites with ongoing groundwater monitoring</a></td>
<td class="nump">8<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved', window );">Number of sites where regulatory closure has been achieved</a></td>
<td class="nump">3<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_EnvironmentalReserveEstimateRangeLow', window );">Environmental Reserve Estimate Range, Low</a></td>
<td class="text">4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_EnvironmentalReserveEstimateRangeHigh', window );">Environmental Reserve Estimate Range, High</a></td>
<td class="text">7<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_EnvironmentalReserveEstimateActual', window );">Environmental Reserve Estimate, Actual</a></td>
<td class="text">4<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Percentageyieldofhighconsequencepipelineareas', window );">Percentage yield of high consequence pipeline areas</a></td>
<td class="nump">30.00%<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_CommitmentsandContingenciesLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>[Line Items] for Disclosure of commitments and contingencies [Table]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_CommitmentsandContingenciesLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_EnvironmentalReserveEstimateActual">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Increase in the reserve recorded for potential costs associated with environmental remediation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_EnvironmentalReserveEstimateActual</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_EnvironmentalReserveEstimateRangeHigh">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Potential costs associated with environmental remediation, high-end range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_EnvironmentalReserveEstimateRangeHigh</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_EnvironmentalReserveEstimateRangeLow">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Potential costs associated with environmental remediation, low-end range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_EnvironmentalReserveEstimateRangeLow</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of former manufactured gas sites where we own or retain legal responsibility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_NumberOfFormerManufacturedGasSitesWhereWeOwnOrRetainLegalResponsibilityForEnvironmentalConditions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of sites soil remediation is completed or near completion.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_NumberOfSitesSoilRemediationIsCompletedOrNearCompletion</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of sites where regulatory closure has been achieved</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_NumberOfSitesWhereRegulatoryClosureHasBeenAchieved</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Numberofsiteswithongoinggroundwatermonitoring">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of sites where groundwater continues to be monitored in accordance to plans approved by the KDHE.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Numberofsiteswithongoinggroundwatermonitoring</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Percentageyieldofhighconsequencepipelineareas">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Minimum percentage yield required to test pipelines previously untested in high-consequence areas.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Percentageyieldofhighconsequencepipelineareas</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>45
<FILENAME>R34.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.7.0.1</span><table class="report" border="0" cellspacing="2" id="idp6810689472">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Mar. 31, 2017 </div>
<div>USD ($) </div>
<div>MMcf</div>
</th>
<th class="th">
<div>Mar. 31, 2016 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2016 </div>
<div>USD ($) </div>
<div>MMcf</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_invest_DerivativeNonmonetaryNotionalAmount', window );">Derivative, Nonmonetary Notional Amount | MMcf</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">14,300<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld', window );">Premiums recorded in other current assets on natural gas contracts held</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 5,400,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_FairValueAssetsTransfersbetweenLevels', window );">Fair Value Assets, Transfers between Levels</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Long-term Debt, including current maturities</a></td>
<td class="nump">1,192,647,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,192,446,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );">Long-term Debt</a></td>
<td class="nump">1,200,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,200,000,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member', window );">Fair Value, Inputs, Level 1 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ogs_Fairvaluenaturalgascalloptions', window );">Fair value, natural gas call options</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">6,500,000<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member', window );">Fair Value, Inputs, Level 2 [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems', window );"><strong>Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Long-term Debt, Fair Value</a></td>
<td class="nump">$ 1,200,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1,200,000,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_invest_DerivativeNonmonetaryNotionalAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate notional amount of derivative expressed in nonmonetary units. For example, the number of barrels specified in a fuel oil forward purchase contract.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Article 12<br> -Section 13<br> -Sentence Column B<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">invest_DerivativeNonmonetaryNotionalAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>invest_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:decimalItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_FairValueAssetsTransfersbetweenLevels">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of transfers of assets measured on a recurring basis between levels of the fair value hierarchy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_FairValueAssetsTransfersbetweenLevels</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Fairvaluenaturalgascalloptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The fair value of purchased natural gas call options held.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Fairvaluenaturalgascalloptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of premiums recorded in other current assets on natural gas contracts held</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ogs_Premiumsrecordedinothercurrentassetsonnaturalgascontractsheld</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ogs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.16)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.16)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation S-X (SX)<br> -Number 210<br> -Section 02<br> -Paragraph 20, 22<br> -Article 5<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>46
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 Financial_Report.xlsx
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MMWF\81AU8\K(XK%T-8943OTJDH\ Q:X831F:3LTXXFBD(3^ G/,6+V2?$9/
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M^L/O)NR\L0?[CXVO@K*%7W<AOP!02P,$%     @ ]7BB2IE<G",0!@  G"<
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M.AQG0GS/]O:1I24RS^_Y"NM./&<?5I:P7<_/Y)Z,<B.[W?98??9/1VXCUZG
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MGX@D1<Y9[_'AW^J(3@JTB=1EGO6FN3MSIJ(5:O=1A'GPT&9&Q'Y X!D"38A
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MB>TQPF86SNE[Y[]AM0:]E_1^$].+TYD@V0@)%Y#MC* H/D<(UR)DX3_T\.\
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M3E>0=(T\U05)S907 FY'JFRTQ4&DHQ4D6B-'*RC(S%F6XSV[TH0Y(8986(!
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M'VPV)%0^'._P;,<Q&PUONND'L?D;Y_\ 4$L#!!0    ( /5XHDH>7<2DM@$
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MN7#\YL]F'+/1<-A-/XC-WSC_ %!+ P04    " #U>*)*C/XM9;8!  #2 P
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M\0[/=ABSP?"F'7\0F[YQ]A=02P,$%     @ ]7BB2L,YXV:V 0  T@,  !D
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M?S;CF(V&PV[Z06S^QOE?4$L#!!0    ( /5XHDK#L<6VMP$  -(#   9
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M-QOG7QGC 4M)[G"%&GQ@LZ.@\L'<HVW'-1L=;[KI!;'Y&>>_ 5!+ P04
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M]K]&=.!32:[\"+7^@RV&A-J%XZT_FVG,)L-A/_\@MGSCXB]02P,$%     @
M]7BB2H1A_LVW 0  T@,  !D   !X;"]W;W)K<VAE971S+W-H965T,C0N>&UL
M;5/;;MP@$/T5Q >$->LVR<JVE$U5M5(BK5*U?6;ML8T"'A?P.OG[ '9<-_4+
M,,,Y9RX,V8CFV;8 CKQHU=F<ML[U!\9LV8(6]@I[Z/Q-C48+YTW3,-L;$%4D
M:<7X;O>9:2$[6F31=S)%AH-3LH.3(7;06IC7(R@<<YK0=\>3;%H7'*S(>M'
M#W _^Y/Q%EM4*JFALQ([8J#.Z5UR.*8!'P&_)(QV=2:ADC/B<S"^5SG=A81
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M63E,V,/@#A'HZ!U%"%&LPI%[A*)KBC6$(=>8#82)82$1F&MD T3]/+(4#D#
M ,0&(%<*DD&Q'":VF-IBT""/,0*3""%82 P*B0$AZ8#&8=(>34R0N6"B!"1*
M *)LD'$R(AIDO+Z'N!*1@B)20,1D("(=%Q5/PH2D_81=86 H(<G-VF2@K&PL
M"P^X5MF8*T3M-9#U$/1*U@24-0%DW?A>,8)[ GK\0\$WV@H&5 SZRJ8%]5-.
MXCOY8K"_+'$(<$4W0L"= ?]':\!P;\! <\!DV$G)Z$NX^3X\AG72@EZ[KY@X
MV%$JO9R?:F5:9L_:C>ME:,;%P+["T[4;NI]AW!G@!Q6'HI;>EBL]C.S(V'.N
MF):*GO1?>-3'CFY3LKTRRU2OA9N];J-XTYXK@NYPL_@'4$L#!!0    ( /5X
MHDJ\U7H_ S4  +?O   4    >&PO<VAA<F5D4W1R:6YG<RYX;6SM?6EO&TF6
MX.>97Y&HU<[*0(KF)8JRNPN@)=I6MZX6Y:XU&OLA18:H;"<SV7E(5F%__+XK
MCKPHJEPU.Q@0J)(E,C(RXL6[K_A3EN7>]U449W_^Z2'/U^_>OLWF#VH59)UD
MK6+XYCY)5T$.?Z;+M]DZ5<$B>U J7T5O^]WNZ.TJ"..?O"(._U6HDZ2(\S__
M-.@=_O3SG[+PYS_E/Y\F\V*EXMR;Q MO&N=A_NR=Q3QGF,3>@9<]!*G*_O0V
M__E/;_$9?F[@721Q_I#!,PNUJ'Y[$:0=;]#SO7ZW=U3]<K*&+_N'S5^:];B+
M^,=Y&"OO+%>K[/]4'Y UWZAEF.5I $]>!BM5&840?)>M@[GZ\T\ HDREC^JG
MGZ\NI]ZG(//A7?/.O[=,? *+28,(QBS4=^^OZKDZ[J1(4USPQS";P[BO*D@1
M*-YID%>7\?/!0:]_,.BUO.H7%44'W^+D*?9F*LB26"V\LRPK5%I]X&O]0&2.
MOR<1G'&0/L-Z(I76AETF;?N4;=RH=9+F8;ST9GF0%VWOH=F]$]CC,DEK,#D/
MTJ7R)O.Y@E$P9L'CVUZ=K%9PRK,\F7_SO1GAFW=5Y%D>Q M822N.N"#_"!_6
M%EL=>:W2,%DTC_U;[5C,T[?/Z]I1]KH'?ZMA-HQ>\/NBH+;L^R#*:M.8=\C2
MVC!'4]2__]N_-9'-['9R.[V87M[.O*N/WMGER=7%%&CWR^S4V]][(S3LA;%W
M^Y 4&8 5L'ZO]/<F$AY5O_R4)EGFP9!E&%>_NU&/*B[J"'J2 "=+[KT8L H)
M:AG4D5/EWJIQTJLUXA%BI?H.;"^K3R\CDCCS8#L>LKU<Q4$\KX-< 0N8A\Q:
M<&RP0HS_E3ZH[53%"E>;!]_K[[Q-<O@JV79M,"*,YTF-._U\E3\ ,6WZ3F:N
M?GD&>X2#S?7WOA>KO#X(Y_7N%#!4)6]IWL_9AN_P;)I7. W2&/:6>;!+QK3J
MB ]!%LYKQQ!&15X7'9-'@!4P#T'9_5PCZ)OZ!(_A @@N\Q9J'L'HA5T!(EJ&
M_&0SH0"97-],/T\O9V=_GVJRV6+(=8"\\D'E(7(52V>;2>K5$_]C<H<R;9[7
MI-XUG+9&WX0P9 WDI5;K*'DF=G('>'L?YMXZ"F*@=3C2/P82V^Z=T1C0!VCO
M 1?_:%!Q/P)F\H90%X^M8:DG#T&\Q/'>VMGWAAU[41C<A1$(%W=:_&=O?]Q]
M0X_O[1_UX:V 9&LUSV$]45VT-RRWAMN3\\GE"<#J\W0*<-H6'J=JWLY>KU/D
M*;AXW$Q.RU7_*L(U;K1&,'.0($5$4G;Q&M:&%+U^S9NTBA!DF<KK_#W('NCY
M.?Z"DSP&$0RO#80%HQZ: >CG"@;=1<U\ZP*VE(8@-&G6K%BOH["!+UEQ@@ '
MHD?V41=*2P01J"HMJQ?\W+A#9O>;QWQ*DL53&$4.96X>V+R030M8;OL*'M[\
MW13.!U0OG")*XN4!@'H%Z'-7/W16SC)6SO:ZG6[/6X.^!8=;J'=>4 "#3L-?
M ?GZAUV_VZ7_A7N_]T)47Q?>8=\_/![#-X>:K]/:K8J'(X9 #L>]H1F1HX(Q
M?S!V1--L#=/TQP._/^KB\T!D:G4'\&DEM"!<' #6G 3K$&!5QYH<U AXHQ(1
MMXGVDI<X7.UXP%;+"L!(@2TL> XL[9W7&XW\[G&O%1"TZT%OZ!\-#YU!+^Z6
M\4'1R=<T]A(2^*!0S*."0*KQ?86$%N:A'!ZR53P/U+!HW1FQU[$_&HZ9OX[]
M\6%O,X-U5[0-+LI2-'=O8@=)#@M<!\_(5EHY3_OW*2)8*&I5V_>D(,F!YR";
M6D2#'KYAN2<%'/X*I@'.G63A2WQIPTQEYK1AX*FZ5RDJ2W/X 6]TV(CSU ;=
MPTRP296<DF!6RHCEY"X*EZR@-^]Q45E7\P:KHYI7W\3$PAQE&C\P3V)4QU4\
MKP]N]A5XS<MQ(:9E9YVX*CI"Y<_?IDSV^AL],&6V;1AVNXY>?D!S%</=MQK.
M_'FKH4F[>5_EB\T.J%/@#Q4&](*&.YE]]CZ>7_VRO9)F[;8 &5@C:DT6_P0:
M9M3*$]1I$L"J2#&#% I)Z"]2C$#C0K-EX=T].Y:CG?]=;1>X_8.[($.D!^D"
MHH7UNQ:;\!I?0$HRV'O>(BGN\OL"U #A?<VZ->E.K"DP'[9X75M0@_[6;DAN
M&#3!U\'WJ^01.5?3"=;4MNKB-FE/+XT]V>8XZCM[!,&P>8QH$WQ P*2*!O2E
MA3:NJ,B(M<)_+[_I8X@>CLUC;A1(.\9/]+ZX\K%1[8;Q!6@;@&\X?NX0;[L!
MO@8]JD;&</A/8?[PD$0+<@^DBA4EH0:VT^&@\DB9Y=%[2FB^$4;W6^S?&H_S
M;2V45E,&U:P[M0QCU 9QO6ORVKWJ>84"J^U)P[*(8WV>7'Z:SL#4]J9_^W)V
M^Q48U\!;,==7R/6]DJ-]:[Y&LJN%39,7UOO'!:F2=;]#66%N'6<T9^,<:AMI
MN/WF%[N:-A-YV3@7CK-_CIIVZRPS5T[YSE'>!1')$5:CVRUS-IM^RY,GO'Q<
MJ[J_!X48D4"8,JG9A*;;NTTV25FSP6;1V3B4U(.-(Q>&W _0#ASVVY6)"IP5
M&V<.J#8&B#207_G8[,O%Q>3F*U+.[.S3Y=G'LY,)$-+DY.3JR^7MV>4G[_KJ
M_.SD#"C*VR<[H6:2S<)E'-Z#'H8!,7LVUTD4SDDIWA"(>N&=-?VMX[UBP5=%
M2LBR6@?Q,RZIB ,PSY :A <",8)"E0LK?0@>4?56,0@XX/_D&RU25)9RY+^
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M5+VY]5]^3<W2NJJ6IY)3H1;OJM$#77EQ"50AOW("_+[-,L3W+8#8 V <;X!
M0&X=""O@]"..8AY@K(=]KGL>& Y8\K-'PK77?V\_NGZYTH\G&?3]7J_K#>&Y
M8;?O#8?'_F&O#VC90/!>[]@_&O?,V^3/&Q7,10/!LA.9> RSP%JZ(V_L'_7&
MXK(<^MW>L7?H=P==[]CO#H\%$-N=@7<T]$>#D3<<=/W!8.P==H?^\='0NWI\
M$5C[P1L0(7U_#(^],3NPGTPP$!LE8,Z3X<;#_=ZP7QHM']36[*+%?F_@'X^[
MI>?T)Y>4LEW-RMYW'L?DTU'7'QV.X!>]3_CMN.L?'P]I76>LQ9,MDK05N.C
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MW'/#N^#NK)0%<6-N>/E G>4W1;[MU$XM2OT.QF['^Z&-.3VQL8*%*Z</;.-
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MG>[1_]P"YT 1;,.Y06?4:YPBJ\PQ;)]CV!D=CFN33/_VY>SV:XNJ\%875 $
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MWOX]_=;W5'=MY[ CWV99_O/_ U!+ P04    " #U>*)*C6%;[$8"  !9"P
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MY#,R83X[@W1Z4*;NF<7T(CIE LV(UV*IQ?[$BUI6GW5 4"6&7>*'?/Y%T"A
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MX3O[ E!+ 0(4 Q0    ( /5XHDH?(\\#P    !,"   +              "
M 0    !?<F5L<R\N<F5L<U!+ 0(4 Q0    ( /5XHDIF\PM@@@   +$    0
M              "  >D   !D;V-0<F]P<R]A<' N>&UL4$L! A0#%     @
M]7BB2J(J8(CO    *P(  !$              ( !F0$  &1O8U!R;W!S+V-O
M<F4N>&UL4$L! A0#%     @ ]7BB2IE<G",0!@  G"<  !,
M ( !MP(  'AL+W1H96UE+W1H96UE,2YX;6Q02P$"% ,4    " #U>*)**M_&
M?WX"  #A"   &               @ 'X"   >&PO=V]R:W-H965T<R]S:&5E
M=#$N>&UL4$L! A0#%     @ ]7BB2BC6K!N8 P  /@\  !@
M ( !K L  'AL+W=O<FMS:&5E=',O<VAE970R+GAM;%!+ 0(4 Q0    ( /5X
MHDIM ATWV $  %\$   8              "  7H/  !X;"]W;W)K<VAE971S
M+W-H965T,RYX;6Q02P$"% ,4    " #U>*)*?H2]41\"  #_!0  &
M        @ &($0  >&PO=V]R:W-H965T<R]S:&5E=#0N>&UL4$L! A0#%
M  @ ]7BB2N[C U@;!0  >AD  !@              ( !W1,  'AL+W=O<FMS
M:&5E=',O<VAE970U+GAM;%!+ 0(4 Q0    ( /5XHDKADHNQ2@(   0'   8
M              "  2X9  !X;"]W;W)K<VAE971S+W-H965T-BYX;6Q02P$"
M% ,4    " #U>*)*M1EKGHT$   T%0  &               @ &N&P  >&PO
M=V]R:W-H965T<R]S:&5E=#<N>&UL4$L! A0#%     @ ]7BB2D;U&,E1 P
M: X  !@              ( !<2   'AL+W=O<FMS:&5E=',O<VAE970X+GAM
M;%!+ 0(4 Q0    ( /5XHDJQ6=:2M@$  -(#   8              "  ?@C
M  !X;"]W;W)K<VAE971S+W-H965T.2YX;6Q02P$"% ,4    " #U>*)*F^=0
MVK<!  #2 P  &0              @ 'D)0  >&PO=V]R:W-H965T<R]S:&5E
M=#$P+GAM;%!+ 0(4 Q0    ( /5XHDH>7<2DM@$  -(#   9
M  "  =(G  !X;"]W;W)K<VAE971S+W-H965T,3$N>&UL4$L! A0#%     @
M]7BB2D?X"B6U 0  T@,  !D              ( !ORD  'AL+W=O<FMS:&5E
M=',O<VAE970Q,BYX;6Q02P$"% ,4    " #U>*)*C/XM9;8!  #2 P  &0
M            @ &K*P  >&PO=V]R:W-H965T<R]S:&5E=#$S+GAM;%!+ 0(4
M Q0    ( /5XHDK#.>-FM@$  -(#   9              "  9@M  !X;"]W
M;W)K<VAE971S+W-H965T,30N>&UL4$L! A0#%     @ ]7BB2L.QQ;:W 0
MT@,  !D              ( !A2\  'AL+W=O<FMS:&5E=',O<VAE970Q-2YX
M;6Q02P$"% ,4    " #U>*)*]D13HK8!  #2 P  &0              @ %S
M,0  >&PO=V]R:W-H965T<R]S:&5E=#$V+GAM;%!+ 0(4 Q0    ( /5XHDH
M<E&EM0$  -(#   9              "  6 S  !X;"]W;W)K<VAE971S+W-H
M965T,3<N>&UL4$L! A0#%     @ ]7BB2OMPS\FW 0  T@,  !D
M     ( !3#4  'AL+W=O<FMS:&5E=',O<VAE970Q."YX;6Q02P$"% ,4
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M+GAM;%!+ 0(4 Q0    ( /5XHDK\DJKGM@$  -(#   9              "
M 1,_  !X;"]W;W)K<VAE971S+W-H965T,C,N>&UL4$L! A0#%     @ ]7BB
M2H1A_LVW 0  T@,  !D              ( ! $$  'AL+W=O<FMS:&5E=',O
M<VAE970R-"YX;6Q02P$"% ,4    " #U>*)*F^<Y,QT"  #_!0  &0
M        @ 'N0@  >&PO=V]R:W-H965T<R]S:&5E=#(U+GAM;%!+ 0(4 Q0
M   ( /5XHDHB+J;0CP0  .89   9              "  4)%  !X;"]W;W)K
M<VAE971S+W-H965T,C8N>&UL4$L! A0#%     @ ]7BB2OK(6J<' @  >P4
M !D              ( !"$H  'AL+W=O<FMS:&5E=',O<VAE970R-RYX;6Q0
M2P$"% ,4    " #U>*)*))69*DH"  !8"   &0              @ %&3
M>&PO=V]R:W-H965T<R]S:&5E=#(X+GAM;%!+ 0(4 Q0    ( /5XHDH;91<X
M!@(  ' %   9              "  <=.  !X;"]W;W)K<VAE971S+W-H965T
M,CDN>&UL4$L! A0#%     @ ]7BB2A2Q5CIF @  J@<  !D
M ( !!%$  'AL+W=O<FMS:&5E=',O<VAE970S,"YX;6Q02P$"% ,4    " #U
M>*)*IUV%!WT"  !_"   &0              @ &A4P  >&PO=V]R:W-H965T
M<R]S:&5E=#,Q+GAM;%!+ 0(4 Q0    ( /5XHDJ+<V<A"0,  !T,   9
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M  !X;"]S:&%R9613=')I;F=S+GAM;%!+ 0(4 Q0    ( /5XHDJ-85OL1@(
M %D+   -              "  >B3  !X;"]S='EL97,N>&UL4$L! A0#%
M  @ ]7BB2KL/F'DB P  E18   \              ( !698  'AL+W=O<FMB
M;V]K+GAM;%!+ 0(4 Q0    ( /5XHDHSW*/_@P$  &L5   :
M  "  :B9  !X;"]?<F5L<R]W;W)K8F]O:RYX;6PN<F5L<U!+ 0(4 Q0    (
M /5XHDJ: LD&E@$  /@5   3              "  6.;  !;0V]N=&5N=%]4
?>7!E<UTN>&UL4$L%!@     K "L GPL  "J=      $!

end
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>47
<FILENAME>Show.js
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/**
 * Rivet Software Inc.
 *
 * @copyright Copyright (c) 2006-2011 Rivet Software, Inc. All rights reserved.
 * Version 2.4.0.3
 *
 */

var Show = {};
Show.LastAR = null,

Show.hideAR = function(){
	Show.LastAR.style.display = 'none';
};

Show.showAR = function ( link, id, win ){
	if( Show.LastAR ){
		Show.hideAR();
	}

	var ref = link;
	do {
		ref = ref.nextSibling;
	} while (ref && ref.nodeName != 'TABLE');

	if (!ref || ref.nodeName != 'TABLE') {
		var tmp = win ?
			win.document.getElementById(id) :
			document.getElementById(id);

		if( tmp ){
			ref = tmp.cloneNode(true);
			ref.id = '';
			link.parentNode.appendChild(ref);
		}
	}

	if( ref ){
		ref.style.display = 'block';
		Show.LastAR = ref;
	}
};

Show.toggleNext = function( link ){
	var ref = link;

	do{
		ref = ref.nextSibling;
	}while( ref.nodeName != 'DIV' );

	if( ref.style &&
		ref.style.display &&
		ref.style.display == 'none' ){
		ref.style.display = 'block';

		if( link.textContent ){
			link.textContent = link.textContent.replace( '+', '-' );
		}else{
			link.innerText = link.innerText.replace( '+', '-' );
		}
	}else{
		ref.style.display = 'none';

		if( link.textContent ){
			link.textContent = link.textContent.replace( '-', '+' );
		}else{
			link.innerText = link.innerText.replace( '-', '+' );
		}
	}
};
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>48
<FILENAME>report.css
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
/* Updated 2009-11-04 */
/* v2.2.0.24 */

/* DefRef Styles */
..report table.authRefData{
	background-color: #def;
	border: 2px solid #2F4497;
	font-size: 1em;
	position: absolute;
}

..report table.authRefData a {
	display: block;
	font-weight: bold;
}

..report table.authRefData p {
	margin-top: 0px;
}

..report table.authRefData .hide {
	background-color: #2F4497;
	padding: 1px 3px 0px 0px;
	text-align: right;
}

..report table.authRefData .hide a:hover {
	background-color: #2F4497;
}

..report table.authRefData .body {
	height: 150px;
	overflow: auto;
	width: 400px;
}

..report table.authRefData table{
	font-size: 1em;
}

/* Report Styles */
..pl a, .pl a:visited {
	color: black;
	text-decoration: none;
}

/* table */
..report {
	background-color: white;
	border: 2px solid #acf;
	clear: both;
	color: black;
	font: normal 8pt Helvetica, Arial, san-serif;
	margin-bottom: 2em;
}

..report hr {
	border: 1px solid #acf;
}

/* Top labels */
..report th {
	background-color: #acf;
	color: black;
	font-weight: bold;
	text-align: center;
}

..report th.void	{
	background-color: transparent;
	color: #000000;
	font: bold 10pt Helvetica, Arial, san-serif;
	text-align: left;
}

..report .pl {
	text-align: left;
	vertical-align: top;
	white-space: normal;
	width: 200px;
	white-space: normal; /* word-wrap: break-word; */
}

..report td.pl a.a {
	cursor: pointer;
	display: block;
	width: 200px;
	overflow: hidden;
}

..report td.pl div.a {
	width: 200px;
}

..report td.pl a:hover {
	background-color: #ffc;
}

/* Header rows... */
..report tr.rh {
	background-color: #acf;
	color: black;
	font-weight: bold;
}

/* Calendars... */
..report .rc {
	background-color: #f0f0f0;
}

/* Even rows... */
..report .re, .report .reu {
	background-color: #def;
}

..report .reu td {
	border-bottom: 1px solid black;
}

/* Odd rows... */
..report .ro, .report .rou {
	background-color: white;
}

..report .rou td {
	border-bottom: 1px solid black;
}

..report .rou table td, .report .reu table td {
	border-bottom: 0px solid black;
}

/* styles for footnote marker */
..report .fn {
	white-space: nowrap;
}

/* styles for numeric types */
..report .num, .report .nump {
	text-align: right;
	white-space: nowrap;
}

..report .nump {
	padding-left: 2em;
}

..report .nump {
	padding: 0px 0.4em 0px 2em;
}

/* styles for text types */
..report .text {
	text-align: left;
	white-space: normal;
}

..report .text .big {
	margin-bottom: 1em;
	width: 17em;
}

..report .text .more {
	display: none;
}

..report .text .note {
	font-style: italic;
	font-weight: bold;
}

..report .text .small {
	width: 10em;
}

..report sup {
	font-style: italic;
}

..report .outerFootnotes {
	font-size: 1em;
}
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>FilingSummary.xml
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<XML>
<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.7.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>55</ContextCount>
  <ElementCount>178</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>22</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001000 - Statement - STATEMENTS OF INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/StatementsOfIncome</Role>
      <ShortName>STATEMENTS OF INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1003001 - Statement - STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncomeParenthetical</Role>
      <ShortName>STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1003500 - Statement - STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/StatementsOfComprehensiveIncomeStatementsOfComprehensiveIncome</Role>
      <ShortName>STATEMENTS OF COMPREHENSIVE INCOME STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1004000 - Statement - BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/BalanceSheets</Role>
      <ShortName>BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1004001 - Statement - BALANCE SHEETS BALANCE SHEETS Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/BalanceSheetsBalanceSheetsParenthetical</Role>
      <ShortName>BALANCE SHEETS BALANCE SHEETS Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1005000 - Statement - STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/StatementsOfCashFlows</Role>
      <ShortName>STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>1006000 - Statement - STATEMENT OF CHANGES IN EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/StatementOfChangesInEquity</Role>
      <ShortName>STATEMENT OF CHANGES IN EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2101100 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesNotes</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2105100 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes</Role>
      <ShortName>REGULATORY ASSETS AND LIABILITIES (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2118100 - Disclosure - CREDIT FACILITIES (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/CreditFacilitiesNotes</Role>
      <ShortName>CREDIT FACILITIES (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2120100 - Disclosure - LONG-TERM DEBT (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/LongTermDebtNotes</Role>
      <ShortName>LONG-TERM DEBT (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2121100 - Disclosure - EQUITY (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/EquityNotes</Role>
      <ShortName>EQUITY (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2122100 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2123100 - Disclosure - EARNINGS PER SHARE (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/EarningsPerShareNotes</Role>
      <ShortName>EARNINGS PER SHARE (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2124100 - Disclosure - EMPLOYEE BENEFIT PLANS (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/EmployeeBenefitPlansNotes</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2125100 - Disclosure - COMMITMENTS AND CONTINGENCIES (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/CommitmentsAndContingenciesNotes</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2126100 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Notes)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsNotes</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Notes)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2201201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2226201 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2305301 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables</Role>
      <ShortName>REGULATORY ASSETS AND LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesNotes</ParentRole>
      <Position>21</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2322301 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossNotes</ParentRole>
      <Position>22</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2323301 - Disclosure - EARNINGS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/EarningsPerShareTables</Role>
      <ShortName>EARNINGS PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.onegas.com/role/EarningsPerShareNotes</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2324301 - Disclosure - EMPLOYEE BENEFIT PLANS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/EmployeeBenefitPlansTables</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.onegas.com/role/EmployeeBenefitPlansNotes</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2401402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/SummaryOfSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - REGULATORY ASSETS AND LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesDetails</Role>
      <ShortName>REGULATORY ASSETS AND LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/RegulatoryAssetsAndLiabilitiesTables</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2418401 - Disclosure - CREDIT FACILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/CreditFacilitiesDetails</Role>
      <ShortName>CREDIT FACILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/CreditFacilitiesNotes</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2420401 - Disclosure - LONG-TERM DEBT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/LongTermDebtDetails</Role>
      <ShortName>LONG-TERM DEBT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/LongTermDebtNotes</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2421401 - Disclosure - EQUITY (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/EquityDetails</Role>
      <ShortName>EQUITY (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/EquityNotes</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2422402 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/AccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2423402 - Disclosure - EARNINGS PER SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/EarningsPerShareDetails</Role>
      <ShortName>EARNINGS PER SHARE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/EarningsPerShareTables</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2424402 - Disclosure - EMPLOYEE BENEFIT PLANS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/EmployeeBenefitPlansDetails</Role>
      <ShortName>EMPLOYEE BENEFIT PLANS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/EmployeeBenefitPlansTables</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2425401 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/CommitmentsAndContingenciesDetails</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/CommitmentsAndContingenciesNotes</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ogs-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2426402 - Disclosure - DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDetails</Role>
      <ShortName>DERIVATIVE FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.onegas.com/role/DerivativeFinancialInstrumentsAndFairValueMeasurementsDerivativeFinancialInstrumentsAndFairValueMeasurementsPolicies</ParentRole>
      <Position>34</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>ogs-20170331.xml</File>
    <File>ogs-20170331.xsd</File>
    <File>ogs-20170331_cal.xml</File>
    <File>ogs-20170331_def.xml</File>
    <File>ogs-20170331_lab.xml</File>
    <File>ogs-20170331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>52
<FILENAME>0001587732-17-000023-xbrl.zip
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
begin 644 0001587732-17-000023-xbrl.zip
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M3ZF+TN[D/.'<.(0D8]9:3:QT@2;$*L9U@C45KWZZ3 =C6);:RZLONF)VV22
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M9%\9YQR 5I(FX-Y$::>*&R_!0E@&&H^5 &[_VBYP?4B'5Q!37EWOH@*)ECB
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M<O-9VT1B5S/P?"4%LQ]XQT1LVS!M#Q:=2Z:%,5Y)"EXNG2-FZR-/SWE1C_%
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M?5'80GJ)P!_Q)#@I@Q0\<*GGY4EQ;&0=A97*RL,P>'\Y;UBZ?T6 2+",NI,
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MSA+H=\VXXAT'U;![FA@273-#8J\V8T0U/-M#?%R? Z"17AEUU@C% 6!N/ V
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ML[-/':<KPBC7%NRN/;/[8NGB6VGC&SK$9&:4"!HO/ ZB:>%X2THL'#.73>U
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M3,VD8GD 6Q(=L]/O'QU\)T.XBC!5XQW5>$<UWE&-=TK4>**TD87Z]]DI(H-
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MIQB]A\PD%-D[(8_JNJ.\(3SN.0MF'FF-$G5H.X1YI/5HYC,Y$^#;*;,#DL+
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MQL,AN9A,N'8S/2Z:VVDSON^$RGRF2Z;G5=Y/9LP*'?9U.C)]%W@4_\;\^QF
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M;M"N@/+G8_A@='1)@62[FSZ @9Z!\(7'PP)@=F,DZM@LK-3\E>X#EO9/$X[
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M:V*/#!24/AO;$X0DG8CB@G7QN(-(3,1@[-R8VCZ/W2 D"O<N(]VI2'2EK#2
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MS[_@A3_)ZX/E J['<A4,_?^$2_^RL?8__O*W7W =^Q/^^X__'U!+ P04
M" #U>*)*ZU<IR"0-  #6>P  $    &]G<RTR,#$W,#,S,2YX<V3M7=UWXK82
M?^]?X<M3^T#X2+*WF[/9'@?,QJ<$N)CLMD\]PA:@N[9$)9DD_>OO2.;+8!P;
M:..]WJ> /3.>W\QH-))'Y,,OSX%O+# 7A-';2N.B7C$P=9E'Z/2V\NA43:=E
MVY5?/O[PX5_5ZF]WPZ[19FX88"J-%L=(8L]X(G)F?/&P^&I,. N,+XQ_)0M4
MK49,AO[P++P;X<YP@ PD)2?C4.(.XT$;3U#HR]M*2/\,D4\F!'N@@H_5(V($
M6[<EXE,L>RC 8HY<?%N923F_J=6>GIXN&,53)"Y<%M2:]<:_ZY>7C8H!(*FX
M\0G]&J-]'G/_@O$I4-8O:^KV& F\(J>,TC!(9O DK\F7.:X!416H,"?NFN]U
MIC@#FXJL$)0L3ZZIMP%<UZ*;VZ0D!2ZA0B+JKN$^[YGGZ5)3-]Z_?U_3=]>D
MPDLB!+&-VF\/74?[N?+Q!\/0?B?!G'%IT#U_39 8:\Y05*<(S17<ZVJ]456
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M-K]Q&X$*HSP[=*=DZ$BE-^A&(\>WR/[59F(\>ACM'BB:0L2BO6OZCB'9"K2
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MPX01@DD;#OX0_GV[[?W@.O:P^+%Z&1&M&E9N1F\Q6FXNI!!6<\=S)DRIYAA
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M:3S_[^UZE\OU.;E.L^ ,?XM7\ZS<"7GX^Z&9J\=/BY2&CF/+K> >" .X!JB
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M&SG".45$ (UXN;W(2%B]I^,:#LF1SH$;;/*H6*;S?.'9FCU%VD,*%60"68P
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MU7!'[N$&NKO\!KK;^-OB=GO[.<VR],_@8,[BNR#QP2*(-5I'C@F"*6# *@(
M<!!"5HA""&Q^MJ#'HKA=*KT_K 8+ =ZDV2:_W%87 SZY(_#RZ4AZS"$U+"R
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M'/]&S)LA[U<XZ%UTIY"T<S0&L/E;T*%\^0[;^A5:1=(2H 4 #'%L-5,<&UK
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M3_(]E#([O<F"<*ROR H8+&*5W]I".880<U"^4I"Y"9J.'>BWZK+0$6JC,VG
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MDRP%"%.E((89CH(R+G.SOR&)>D;OK/^__W7^)<\I^/=_^7]02P,$%     @
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MWY*LDC)7%^ 3230W]=A;D7OL'-UG%&%Q'IL;@MC?[!"*,\ J'W_+\OL',O&
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M BO!B>OYUI 1^B0Y9)$\_2@T*V$/'O3H0;[I[J3K'.@NBZ-G,CH? '$"#%X
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MZ6&.>W[83%]W-4O0NJC([/8O:15EV08N'_*,]+R%[1*[M&:)2?ZP?2MT[&0
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MD!GU,ET/J\J6&;D6=B(OC S?<4(,D=O623%=(\()P]EG+78U#M<!+KA*P O
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M.;VMR(IQ8N/0]E%HN($?0V^P!7V3Z<X2.0LCJ&_U:@ XHCHBR"&;_NJGCU^
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M"$$+L7DS>0\DUR%D5?2>WL,8F5D^^9LGJ>S;&R.3*[;/<;ZY*\K']C*SVV=
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M7B*!D;/XFI6WA8IKOIE-\FC./CIFZ6G7T)8OUM#R!N=\+G7NV3JB!4K)GL<
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M?55TZU$R-OZ.R9OB%IB)YJGVZK40:F&-^9UH>L[BZNY\L\INR91YDU7534&
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MBR!)-!(U75/C)&9$;#?PG*QSS%L*SQ1W2W5)2FZ4NJ2GMT=Z\*C;(CWXM"^
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MJV,=],5*F]Z$'EX_V\E2]]ER/?OG1L^7-W\) VJ5"Y(>(F2-MR34$P*@QEX
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M*U]OVUP^K"]O*LBV :]*!-?.!R0.*V@=X@9[KKB'&"%2H&?"C^.REMV1*QN
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M'9H;X"S45.U9Y\CVQJF'+_/9]+?UMO+J7DDVO[A8; ^D'F)9HQ<FBDD'J.,
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MB:,.0,D]\9IBX+V22A42!&L90Y !+:9T2Y"&8)[ 1:UD3G8^GWC" ',T!/Q
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M_%.Z^IHM5K/'P[VAN5M\FRVS12[49!Y$>BP9OH]EG7]N I5@7#NCC,2.,2R
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M/-HFL1P03KA')"]2 XRBKH1(0A 3I PHW;!#,](.L%W2Y6_9_&&1GP[PLWE
M^"!-7CV;!&(+AZBS8G-XU6AGG_QL8&+*F TH,[!#>L0!VJGS\6CHRH)J^<[7
MPV%V[&Z2&(J- @)XZ!S@P#J(=2$3L2HFLAU0IE^7KD@;N';)E0UY39@%;[/E
M83?UQ9,)-5AY RS37'/ \\C<EI!0$,., :7I=<B,&#@[-1[9_7VVN%IGTW]<
MW05P5L]N13IL0@XT3#C$@*$ %M'!$0^Q&$2\)+R*NA%6_!!T:1'=;M?,GMQK
M'WYS;+GLU=.)1DYH+*R"%@HC-:2X' <LKL2E'#E/VH&T#W)\3)>S[+HZ/9X]
MGRC* /?>,A)\<("HIHP^(:-BZHA \$,QI#FJW7+D<_B,([3('TF8)$ZIX%EC
MX"S5 DJ+BC[G_E4,$\:^>AH!9#?*5Z$WUQMNSB?[W(P7SR2::ADB+<J-=<P(
MQ %VI=@DSA",?9DT!LEN!_^C43J\-KKSV41[A)3$Q DLC ^H!$P**3B+N]1L
M["NC;2#:0P*5FRSS6S)7H9L;'[AY1>MV,@E?]^= @M6Q)@DP4@'*" )8Y3>(
M.6FV@Q ! FBEK/]*&6).??IP\>$O5Q_=IZN_JD_NTIO+]^\O/UQ]OC3_I=75
MA5$?K+UX]]MG9_>E5#5Z3V*XHP!!8CT&2GOF!5*%B,RP*(L]G ':GJ:S_L ^
MKQ,RQF"G>#!#/$0TU$(K?(D@9G(D)V0ZUGNE4S#UD#[/4S!08\((S[/D%7<
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MD<N."?&68V0U\ER7:QN:QU1G.A]_M2^*=J:7$[/3SQ:3Q;1#?[7F!R2&!\5
M"P%#V$N.*>7EXC#5=B07N??GKW:+?X_'5,IIX5/Z=3M?7-[D]?C2Y7265^G_
M>O#&J8IO2!!SSEJ ,37&21Y4RHK<X& J0,S\/\ 3I7V3YNUQE0Z4<I*TLJ\/
MR^G=9)4^=OYX1=?CC1/&A4.&$:X\MIP+H7SIYKC@K_](KFAOC&Q;+7V3\?*F
M+&M;@7W/GLYS-PUF4CN/')40!K>ZC 05Q?T<&?U!Z=9<#WWQR_TQ35>KSY,_
MMN>G]]]\LP.[ TR,>F\BH</<.TJ]UH);:>3F))KE>?)Q +"7!.\?9;;N4U7#
M"XM:"7T2@2FCS&*$@QOC! -,H@)[K:+F]/JG3T\5M/=%V,[TTA<[\]ZKQ77^
M7[YB^VTRSR>+QVL.7N_O'N!GG=<DWA.J#<0J3$$:*$"-]278W,3<*E#?I';.
MT!8#\ Y1/BW?5!A%R^7W,& V5VO4)MJK]HF3DGF:GWW4^?H8I,R5#C2A,&;A
MLK8-/.$-FNWR+ [D<1&,$>! &$;*" QM<#88*N<+IJ)*@M8^07.R:PNZI5<]
MB)_HU<]-!F^ORCORYY?=/<V5!X\]R:%_V[]ZMR!4>5-PJJ@#S%O K3$."RT,
M4,QS1"P&4%0J3=8Q)C4O1K X!,T,&*JH98YY0?)37(\2R> ZCFOIMC-]'[XK
MH1[(O95-:^6N!&,P$D(8# 4.5HQ9P4@A&_=CJR;95+&5[DJH!V5O-&GUK@1)
M@:."JO!9"(4)4!%J"QFA-#_$70F5]5SYKH1ZJ/9N8-XUNRLA#"ZNK*0*$2&@
M 4CATOI2[\::AMF2:6F*8X^KB VJS2NN- 62!>\9,R,Y)\)O92$.L9%M-<<H
M\V#E^'HP]D6)*G=V[UX;JN#KQ[\\8=HA()SA@FH%-%3"XA(UPV/R;(9LD.+)
MUSOV0V#LQ_P7FW+>FZ<^9D&2=#U;;C#=;@?EN<6KIWJ3!18-:1SQB0D#D@H4
M? CO.;/86$)+B\!(3U?"]+V3W2<O:PR)_O0XA'$22?I2<FD0(U038!T%3&E'
M.2DE!V1D[N) J=M0&[VMI;_M=07Z'6B50*($](8SBADTW#L)B]"+0.5C6'<>
MN;=-?8+V0!W\2OG'#;9WP81/)_.7?:^T;)[=KG)"<X"W= Z_2*X^J\_NO?OP
M^>K2F\OW'S^YO[H/5Q=_<Q<?PH_NQ6<><(^;OBI!4%/DB&92 TZ(=,I0B[0@
M#%*@7:6LC $[93UX83G3G606&,X]EI@@+Q0EO$ 1F[@*)\,Q']V3K OOJKY^
M>K9$)]Z'>V7[JETYL*M%8K'.;U/ S%ON(2;:0O^(<H#=RTH7+@]K7PU[0#PT
M4B(AA<'4*.,*B;Q$424ZAC.N6]/KX?VS>F">U_Z9=<'9MHXHSZ0EG@MC42&;
MD3ZFLOP B=)4L97VS^I!>9[[9YX1)RAA85KR.6A",%K(&$9;3+@Q9+HTTW/E
M_;-ZJ)[-_IE#6#,0P@9CB!5< @8+J2""_1S+/UO3TA3'OMCQEV7NRRZSX*U6
M\+QV/)T8X?,4;NF@,9 1+WR(K[=R40(K>5UG:$L:*#9K&\R^2+(MIY=>ET6B
M/J7?TL5#^I?)(6-RJ%G"%(< 0*6DA PA;Z'%A:22N9%Y+%&ZSCJ#M2\"[;VQ
M-G0Y1- ?TW6.Y</]Q^VQS^L#K*K]KL1#IY1#DL!\43%$WP2;THC[J'OG!CB#
MM4FUKK$^P2Q7;79+A 7>.$J$<])#0115I1R6FYC(>X E7MKD3',4>]M&?$7F
M*C56]K9)M /&6\\EEU(:@AF"H&0\QKQ/Z_(M77[)SL<#:@O4DT]C[T/XMT[S
MLXUY+OC3.<HFT]B^=R56P!!=JOSV6,HQA)B#<D!"YGIUM/L@6@OLJ#J=M83Y
MR7EHTZ#&Z>Q1O8MK=9\MU[-_'KO(O,GK$F>%IP9@Y+SG(49F3)2+LDY46VP_
M'Z>J1RZV!_K)Z;BYZZ0)\38-DQ"]$"(8T1AZ;?.M>U5.*\Q%W4XSP*2('BG6
M!-Z3DZD)CQ*)@LN).?8@OS>;&>Y9&0XC&'6N:(!'ZGND4$UD>W?M*QT*V/%T
M0IF!AGD?IGLDH;><(UO(Q4%4=O8  [\NG/G&8/::1OHA6V0O>WPL4>=MBX0#
MR2&F"%M/C&,"A._+04!!OQ4[SFGMNQU 3T:8XU/2OB:)4]@I[C4R4$D?;"_U
M<BNAHC8JO[CI/;9G2YIFF/;%FN+VR>-D>?5DHC1CVC$EG%8NP$0H+C:2E6 P
M9O&Q>A6-\^1(')3]4:.8(O-*;KLJ<.GT)ENFS^Z1=W\$3RXH<;:8++]O, HC
M81I:!ISG&P/Z*/C1O+E./C7QC!ODJ% <6FZ8,,BJ F<'1<Q,6/\VVW-RFX:C
ME'[)'R39CM%MLNQ1XKYID5#@-..>(L21-T9A@4OY+)65"JE$7U][KG:R#4B'
M?<K;0&L U<@1!)EWCL RPTM)YV,.(]:_8_:<;%(,C'U1PDV6BV#K\BI_FTJH
M%?;P]C5), 1..$2=#0$'483FY1*V$A()QW9!;(M,:0G24Y%&3U:S:0W&;)Y/
MD,/$&2@E1BI@1KPBHI#-,SFR:E?Q*C["F2:@GHHP=C9_6!],3]K3(C':T[S2
MK??"$) OES)6RN=PS$KT /?+.B=-,UB/TV;G(4GU+?CBM^DJ_^!#R2)[GTTT
MS+>-C9'!L@JA%02VR"-6!D6EH-6X^_F<9IBVL.S+4OP]G=W>!49N^_SAX?Y+
MNKR\V9!U=?FP7JTGBQ"QW1Z;<FJ])_%(>(@$$!1Y@;4/GGM)?P[)2)*O6^!"
MUA_*)V;<UC*^$:4^Y_:]*4&40V.=5%Q+[9V DA1I?0IZ$[,Q/Z"YK#?6M81S
MC]4OBAMYRJM3BFEY4_1_,COD(%5IGC@)' QC3CEB:1ALP3,H$4921]FU 5&L
M@XBL WC[.(_^<'\_67X/%GAVNYC=S*;Y9;G3:?:0+X?>?LSFL^DL7=ET/9G-
M5R][U^-1];<]JK#JL+]18AGVTDM#6%[71F.H#-/!\P1>>:1DI9B@D@-[$-5]
M9]*K-4SRJ^<YE%I#@XTD/,B$"R$,YB,[R-.&-K,.\3VO8^M.AAA?(N=< $@K
M)TSX;RL;4S1F 7] W&E;T96.L=>#]CR/L3..+"/ *B:QEA &:4$A(R3XASC&
M7EG/E8^QUT.UX9+*P?'P[L!)]>J-$^\0YP8SCK'"AA K,2P$(42,*$SIP+IT
MAG-#PA3!TH?)^F$YF?]ELK*S,/'.OCSDJKE*E]]FTW1E'E;K[#Y@O8<Y-=^2
M2$T$HP1!K2S VC'#GU!S9"1+_5WH.NL+]-ZFKO0V-[Z?TJ_Y@8S%;9!A.L]6
M#\OT\N;]Y+^SY2'NU7])X@F$A'M+(:1&8FP4T@4*%JN8C)ISLE[-J=<YYGTQ
MK[BK6RVN]UX$^N7U1: '2-CH?4E^D1D@6A'E!0TCTG%:N@6(1R4E#N@T3@]\
M[ /^AI-LF<.?)WYLKAV[R9:_3Y;7S_JX9V:MTC2A4J+@4WH"" @NIL=<^D((
MIVS,LMZ \N4[GDX[0+H_2S;+EH_UI#^ET_EDM=I@M%%E683\H.6JT#[Q&E,.
M [4A0L9X++ VA>S4L'Y2[,^995W"/9C%Y _9.AW14C)Q4BI(+2#64&8D18\G
M@ZF#AHE*5=I.OI1,D35*0..%"CRB%E$C"B&XD3$N[X"BK3:U66\IN1Z^Y[64
M;! 0GBE%J FVR$LH#=O*A@1$/]92<F5%5[M1L!:TY[F4C(' A (F-8722RGR
M"D5;&3D6E>K0#Y\^+>FY\E)R/50'O)2,J2&(L6"6.1+ L;RN7B$(130F0_R<
M%F.:69?.<.[-U!S$)'B-.GSN/P[9G4HO2*3G05F,V- /))4+R);2.^=B2HD-
MR AU08?7%JD+O <3N13_CR9XD<0HCAT&2BLML!3**L4X(1AZ5+$6[,F#%QUZ
M[;EU5$I.-+ X7S[>"D&AB4KQ'L[@;5.;]8*7>OB>5_#B-4?YW5?<:JHDUDAX
M5,HF[$CNHVU;T96"EWK0GF?P8J7SABED,*"<&""(U(6,SJJ1^ TMZ;ER\%(/
MU0$'+SZ88.2)QA)J 0F',K]$<2N(QC$9FN<7O-2U+IWAW)>I^6V57MZXU7IV
M/UD?KL;XXL$$""H(I B1,)8"2(9S5P*%A1J'4>E"O:]KZ,7@>JKLEHWXWQ^_
M5HIPJ[1/,&!6,VHY)\ :BHADI9$6.*I>VCE9HGA.=0%W?\4\?G\&R3);A&^G
MCY<1UF5=W5<EB$'-N8$@+X C@\<@0)C3!3',<.2KG;@85Q)+0P)VC'R%M9;M
M'_(O>;;,?_[;_P=02P$"% ,4    " #U>*)*H6(8OB*G  #?]P@ $
M        @ $     ;V=S+3(P,3<P,S,Q+GAM;%!+ 0(4 Q0    ( /5XHDKK
M5RG() T  -9[   0              "  5"G  !O9W,M,C Q-S S,S$N>'-D
M4$L! A0#%     @ ]7BB2AH1A$4W%0  VMX  !0              ( !HK0
M &]G<RTR,#$W,#,S,5]C86PN>&UL4$L! A0#%     @ ]7BB2BZB]S)+2
MVH,# !0              ( !"\H  &]G<RTR,#$W,#,S,5]D968N>&UL4$L!
M A0#%     @ ]7BB2ADN\K@I>   YOX% !0              ( !B!(! &]G
M<RTR,#$W,#,S,5]L86(N>&UL4$L! A0#%     @ ]7BB2N 0D51V30  B]T#
M !0              ( !XXH! &]G<RTR,#$W,#,S,5]P<F4N>&UL4$L%!@
0   &  8 A $  (O8 0    $!

end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
