<SEC-DOCUMENT>0001193125-20-122518.txt : 20200428
<SEC-HEADER>0001193125-20-122518.hdr.sgml : 20200428
<ACCEPTANCE-DATETIME>20200428130627
ACCESSION NUMBER:		0001193125-20-122518
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20200428
DATE AS OF CHANGE:		20200428
EFFECTIVENESS DATE:		20200428

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ONEOK INC /NEW/
		CENTRAL INDEX KEY:			0001039684
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION & DISTRIBUTION [4923]
		IRS NUMBER:				731520922
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-237869
		FILM NUMBER:		20823715

	BUSINESS ADDRESS:	
		STREET 1:		100 WEST 5TH ST
		CITY:			TULSA
		STATE:			OK
		ZIP:			74103
		BUSINESS PHONE:		9185887000

	MAIL ADDRESS:	
		STREET 1:		100 WEST 5TH ST
		CITY:			TULSA
		STATE:			OK
		ZIP:			74103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WAI INC
		DATE OF NAME CHANGE:	19970519
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>d916057ds8.htm
<DESCRIPTION>S-8
<TEXT>
<HTML><HEAD>
<TITLE>S-8</TITLE>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>As filed with the SEC on April&nbsp;28, 2020 </B></P>
<P STYLE="margin-top:10pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Registration No.&nbsp;333-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </B></P>
<P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P> <P STYLE="margin-top:4pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>UNITED STATES </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>SECURITIES AND EXCHANGE COMMISSION </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B>Washington D.C. 20549 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>FORM <FONT
STYLE="white-space:nowrap">S-8</FONT> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:18pt; font-family:Times New Roman" ALIGN="center"><B>REGISTRATION STATEMENT </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B><I>UNDER </I></B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:12pt; font-family:Times New Roman" ALIGN="center"><B><I>THE
SECURITIES ACT OF 1933 </I></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:24pt; font-family:Times New Roman" ALIGN="center"><B>ONEOK, Inc. </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(Exact name
of registrant as specified in its charter) </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Oklahoma</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B><FONT STYLE="white-space:nowrap">73-1520922</FONT></B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="top" ALIGN="center"><B>(State or other jurisdiction of<BR>incorporation or organization)</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(I.R.S. Employer<BR>Identification No.)</B></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>100 West Fifth Street </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Tulsa, Oklahoma 74103 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(918) <FONT STYLE="white-space:nowrap">588-7000</FONT> </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Address, including zip code and telephone number, including area code, </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>of registrant&#146;s principal executive offices) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ONEOK, Inc. 401(k) Plan </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Formerly known as &#147;Thrift Plan for Employees of ONEOK, Inc. and Subsidiaries&#148;) </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Full title of the plan) </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Stephen B. Allen. </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Senior Vice President, General Counsel and Assistant Secretary </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>100 West Fifth Street </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>Tulsa, Oklahoma 74173 </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(918) <FONT STYLE="white-space:nowrap">588-7000</FONT> </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>(Name, address, and telephone number, including area code, of agent for service) </B></P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><I>Copies to: </I></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<TD VALIGN="top" ALIGN="center"><B>Jordan B. Edwards</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>Eric Grimshaw</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>GABLEGOTWALS</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>Senior Vice President, General Counsel and</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>100 West Fifth Street, Suite 1100</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>Corporate Secretary</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Tulsa, Oklahoma 74103</B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>100 West Fifth Street</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>(918) <FONT STYLE="white-space:nowrap">595-4800</FONT></B></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>Tulsa, Oklahoma 74103</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top" ALIGN="center"><B>(918) <FONT STYLE="white-space:nowrap">588-7000</FONT></B></TD></TR>
</TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center> <P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a <FONT STYLE="white-space:nowrap">non-accelerated</FONT>
filer, a smaller reporting company or an emerging growth company. See the definitions of &#147;large accelerated filer,&#148; &#147;accelerated filer,&#148; &#147;smaller reporting company&#148; and &#147;emerging growth company&#148; in Rule <FONT
STYLE="white-space:nowrap">12b-2</FONT> of the Exchange Act. (Check one): </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD WIDTH="17%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="2%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="55%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="20%"></TD>

<TD VALIGN="bottom"></TD>
<TD WIDTH="2%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom">Large&nbsp;accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9746;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Accelerated&nbsp;filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"><FONT STYLE="white-space:nowrap">Non-accelerated</FONT> filer</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom">(Do not check if a smaller reporting company)</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Smaller&nbsp;reporting&nbsp;company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">Emerging growth company</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom">&#9744;</TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">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&nbsp;7(a)(2)(B) of the Securities Act.&nbsp;&nbsp;&#9744; </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P><center>
<P STYLE="line-height:6.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1.00pt solid #000000;width:21%">&nbsp;</P></center> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CALCULATION
OF REGISTRATION FEE </B></P> <P STYLE="font-size:4pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="44%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="13%"></TD></TR>


<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"><B>Title of securities<BR>to be registered</B></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"><B>Amount<BR>to be<BR>registered (1)(2)</B></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Proposed</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>maximum<BR>offering price<BR>per share (3)</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Proposed</B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>maximum</B></P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>aggregate<BR>offering price (3)</B></P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000"><B>Amount of<BR>registration fee</B></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" STYLE="BORDER-TOP:1px solid #000000"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; margin-left:1.00em; text-indent:-1.00em; font-size:10pt; font-family:Times New Roman">Common Stock, par value $0.01 per share</P></TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">10,000,000</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$26.53</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$265,300,000</TD>
<TD VALIGN="bottom" STYLE=" BORDER-LEFT:1px solid #000000; BORDER-TOP:1px solid #000000">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="BORDER-TOP:1px solid #000000">$34,435.94</TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
<TR STYLE="font-size:1px; ">
<TD COLSPAN="9" VALIGN="bottom"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-top:1.00px solid #000000">&nbsp;</P></TD></TR>
</TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">(1)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">This registration statement (the &#147;<B><I>Registration Statement</I></B>&#148;) includes 10,000,000 shares
of common stock, par value $0.01 per share (the &#147;<B><I>Common Stock</I></B>&#148;), of ONEOK, Inc. (the &#147;<B><I>Company</I></B>,&#148; &#147;<B><I>Registrant</I></B>&#148; or &#147;<B><I>our</I></B>&#148;) that may be offered under the
ONEOK, Inc. 401(k) Plan, as amended (formerly known as the Thrift Plan for Employees of ONEOK, Inc. and Subsidiaries) (the &#147;<B><I>401(k) Plan</I></B>&#148;). </P></TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">(2)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">This Registration Statement, pursuant to Rule 416 under the Securities Act of 1933, as amended (the
&#147;<B><I>Securities Act</I></B>&#148;), covers an indeterminate number of additional shares of our Common Stock with respect to the shares registered hereunder in the event of a stock split, stock dividend or similar transaction. In addition,
pursuant to Rule 416(c) under the Securities Act, this Registration Statement also covers an indeterminate amount of interests to be offered or sold pursuant to the 401(k) Plan. </P></TD></TR></TABLE>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%" VALIGN="top" ALIGN="left">(3)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Estimated pursuant to Rule 457(c) and (h)&nbsp;under the Securities Act solely for the purpose of calculating
the registration fee (based on the average of the highest and lowest sale prices of our Common Stock on the New York Stock Exchange on April&nbsp;21, 2020, which is a date within five business days prior to the date of filing of this Registration
Statement). </P></TD></TR></TABLE> <P STYLE="font-size:10pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:0pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="line-height:3.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>EXPLANATORY NOTE</U> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to General Instruction E of Form <FONT STYLE="white-space:nowrap">S-8</FONT> under the Securities Act, this Registration Statement of
the Registrant on Form <FONT STYLE="white-space:nowrap">S-8</FONT> is being filed in order to register 10,000,000 additional shares of ONEOK Inc.&#146;s Common Stock which may be offered from time to time under the ONEOK, Inc. 401(k) Plan. The
contents of the earlier registration statements on Form <FONT STYLE="white-space:nowrap">S-8,</FONT> filed on November&nbsp;20, 2018 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-228499),</FONT> March&nbsp;3, 2014 (SEC File <FONT
STYLE="white-space:nowrap">No.&nbsp;333-194284),</FONT> December&nbsp;21, 2012 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-185633),</FONT> December&nbsp;20, 2011 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-178622),</FONT>
December&nbsp;21, 2010 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-171308),</FONT> February&nbsp;24, 2010 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-165044),</FONT> February&nbsp;26, 2009 (SEC File <FONT
STYLE="white-space:nowrap">No.&nbsp;333-157548),</FONT> August&nbsp;4, 2008 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-152748),</FONT> February&nbsp;12, 2007 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-140629),</FONT>
November&nbsp;28, 1997 (SEC File <FONT STYLE="white-space:nowrap">No.&nbsp;333-41263)</FONT> and the post-effective amendment No.&nbsp;1 to Form <FONT STYLE="white-space:nowrap">S-8</FONT> Registration Statement filed on April&nbsp;19, 1999 (SEC
File <FONT STYLE="white-space:nowrap">No.&nbsp;333-41263),</FONT> respectively, are incorporated by reference into this Registration Statement, and are supplemented by the information set forth below. </P>
<P STYLE="font-size:24pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P> <P STYLE="line-height:1.0pt;margin-top:0pt;margin-bottom:2pt;border-bottom:1px solid #000000">&nbsp;</P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>PART II</U> </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&nbsp;3.</B></TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Incorporation of Documents by Reference. </B></P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The following documents, which have been previously filed by the Company with the Securities and Exchange Commission (the &#147;<B><I>SEC</I></B>&#148;)
pursuant to the Securities Act and pursuant to the Securities Exchange Act of 1934, as amended (the &#147;<B><I>Exchange Act</I></B>&#148;), are incorporated by reference herein and shall be deemed to be a part hereof: </P>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(a)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The Company&#146;s Annual Report on Form <FONT STYLE="white-space:nowrap">10-K</FONT> filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000103968420000012/oke10-k2019.htm">February&nbsp;25,
 2020</A>; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(b)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The Company&#146;s Current Reports on Form <FONT STYLE="white-space:nowrap">8-K</FONT> filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000103968420000004/okefebruary2020dividend.htm">January&nbsp;16,
 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000103968420000014/okeschedules2020annual.htm">February&nbsp;27, 2020</A>, <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312520069129/d895333d8k.htm">March&nbsp;
10, 2020</A>, and <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000103968420000028/okemay2020dividend.htm">April&nbsp;17, 2020</A>, but excluding in each portions of those reports and the exhibits related thereto that were furnished under
Items 2.02 or 7.01; </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(c)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The 401(k) Plan&#146;s Annual Report on Form <FONT STYLE="white-space:nowrap">11-K</FONT> filed with the SEC on
<A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000103968419000043/oke401kplan11-k2018.htm">June&nbsp;18, 2019</A>; and </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">(d)</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">The description of our Common Stock contained in our Form <FONT STYLE="white-space:nowrap">8-A</FONT>
registration statement filed with the SEC on <A HREF="http://www.sec.gov/Archives/edgar/data/1039684/0000895345-97-000439.txt">November&nbsp;21, 1997</A>, including any amendment or report filed for the purpose of updating that description.
</P></TD></TR></TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">In addition, all documents subsequently filed by the Company with the SEC pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
Exchange Act, prior to the filing of a post-effective amendment to this Registration Statement which indicates that all securities offered hereby have been sold or which deregisters all securities remaining unsold, shall be deemed to be incorporated
by reference in this Registration Statement and to be a part hereof from the date of filing of such documents. Notwithstanding the foregoing, unless specifically stated to the contrary, none of the information that the Company discloses under Items
2.02 or 7.01 of any Current Report on Form <FONT STYLE="white-space:nowrap">8-K</FONT> that it may from time to time furnish to the SEC will be incorporated by reference into, or otherwise included in, this Registration Statement. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Any statement, including financial statements, contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be
modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein or therein or in any other subsequently filed document which also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">

<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="9%" VALIGN="top" ALIGN="left"><B>Item&nbsp;8.</B></TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><B>Exhibits. </B></P></TD></TR></TABLE> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD></TD>

<TD VALIGN="bottom" WIDTH="3%"></TD>
<TD WIDTH="94%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Exhibit<BR>No.</B></P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="bottom" NOWRAP ALIGN="center"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; border-bottom:1.00pt solid #000000; display:table-cell; font-size:8pt; font-family:Times New Roman; " ALIGN="center"><B>Description</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.1</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312514080534/d684314dex41.htm">ONEOK, Inc. 401(k) Plan as amended and restated effective January&nbsp;
1, 2014 (incorporated by reference to Exhibit 4.1 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed on March&nbsp;3, 2014). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.2</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex42.htm">Amendment to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.2 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT
STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.3</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex43.htm">Amendment to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.3 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT
STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.4</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex44.htm">Amendment to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.4 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT
STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.5</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex45.htm">Amendment No.&nbsp;
4 to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.5 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.6</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex46.htm">Amendment No.&nbsp;
5 to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.6 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.7</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex47.htm">Amendment No.&nbsp;
6 to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.7 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2018). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.8</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="http://www.sec.gov/Archives/edgar/data/1039684/000119312518331452/d656013dex48.htm">Amendment No.&nbsp;
7 to ONEOK, Inc. 401(k) Plan (incorporated by reference to Exhibit 4.8 to ONEOK, Inc.&#146;s Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> filed on November&nbsp;20, 2020). </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;4.9</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="d916057dex49.htm">Amendment No.&nbsp;8 to ONEOK, Inc. 401(k) Plan </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>4.10</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="d916057dex410.htm">Amendment No.&nbsp;9 to ONEOK, Inc. 401(k) Plan </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>&nbsp;&nbsp;5.1</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="d916057dex51.htm">Opinion of GABLEGOTWALS. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.1</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="d916057dex231.htm">Consent of PricewaterhouseCoopers LLP. </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>23.2</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="d916057dex51.htm">Consent of GABLEGOTWALS. (Included in Exhibit 5.1) </A></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="8"></TD>
<TD HEIGHT="8" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" NOWRAP>24.1</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><A HREF="#sig">Powers of Attorney (included herein). </A></TD></TR>
</TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>

</DIV></Center>


<p style="margin-top:1em; margin-bottom:0em; page-break-before:always">
<HR SIZE="3" style="COLOR:#999999" WIDTH="100%" ALIGN="CENTER">


<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>SIGNATURES </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets
all the requirements for filing on Form <FONT STYLE="white-space:nowrap">S-8</FONT> and has duly caused this Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Tulsa and the State of Oklahoma, on April&nbsp;28, 2020. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="40%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt">


<TR>

<TD WIDTH="13%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="86%"></TD></TR>


<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"><B>ONEOK, INC.</B></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">By:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman">/<SMALL>S</SMALL>/ W<SMALL>ALTER</SMALL> S. H<SMALL>ULSE</SMALL></P></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Name:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Walter S. Hulse</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top">Title:</TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="top">Chief Financial Officer, Executive Vice President, Strategic and Corporate Affairs</TD></TR>
</TABLE> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><A NAME="sig"></A>POWER OF ATTORNEY </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Each person whose signature appears below authorizes Walter S. Hulse, Stephen B. Allen and Eric Grimshaw, and each of them, each of whom may act without
joinder of the other, to execute in the name of each such person who is then an officer or director of the Registrant and to file any amendments to this Registration Statement, including post effective amendments, and to do any and all acts they or
either of them determines may be necessary or advisable to enable the Registrant to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission in respect thereof, in
connection with the registration of the securities which are the subject of this Registration Statement. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Pursuant to the requirements of the Securities
Act, this Registration Statement has been signed by the following persons in the capacities indicated on this 28th day of April, 2020. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


<TR>

<TD WIDTH="51%"></TD>

<TD VALIGN="bottom" WIDTH="1%"></TD>
<TD WIDTH="48%"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:8pt">
<TD VALIGN="bottom" NOWRAP ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Signature</B></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="bottom" ALIGN="center" STYLE="border-bottom:1.00pt solid #000000"> <P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:8pt; font-family:Times New Roman" ALIGN="center"><B>Title</B></P></TD></TR>


<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ J<SMALL>OHN</SMALL> W. G<SMALL>IBSON</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Chairman of the Board</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>John W. Gibson</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ T<SMALL>ERRY</SMALL> K. S<SMALL>PENCER</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director, Chief Executive Officer and President</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Terry K. Spencer</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">(Principal Executive Officer)</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ W<SMALL>ALTER</SMALL> S. H<SMALL>ULSE</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Chief Financial Officer, Executive Vice President,</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Walter S. Hulse</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Strategic and Corporate Affairs</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">(Principal Financial Officer)</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ M<SMALL>ARY</SMALL> M. S<SMALL>PEARS</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Vice President and Chief Accounting Officer</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Mary M. Spears</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">(Principal Accounting Officer)</TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ B<SMALL>RIAN</SMALL> L. D<SMALL>ERKSEN</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Brian L. Derksen</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ J<SMALL>ULIE</SMALL> H. E<SMALL>DWARDS</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Julie H. Edwards</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ M<SMALL>ARK</SMALL> W. H<SMALL>ELDERMAN</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Mark W. Helderman</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/S<B>/ </B>R<SMALL>ANDALL</SMALL> J. L<SMALL>ARSON</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Randall J. Larson</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ S<SMALL>TEVEN</SMALL> J. M<SMALL>ALCOLM</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Steven J. Malcolm</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ J<SMALL>IM</SMALL> W. M<SMALL>OGG</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Jim W. Mogg</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s<B>/ </B>P<SMALL>ATTYE</SMALL> L. M<SMALL>OORE</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Pattye L. Moore</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/<SMALL>S</SMALL>/ G<SMALL>ARY</SMALL> D. P<SMALL>ARKER</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Gary D. Parker</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
<TR STYLE="font-size:1pt">
<TD HEIGHT="16"></TD>
<TD HEIGHT="16" COLSPAN="2"></TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top"> <P STYLE="margin-top:0pt; margin-bottom:1pt; border-bottom:1px solid #000000; font-size:10pt; font-family:Times New Roman" ALIGN="center">/s/ E<SMALL>DUARDO</SMALL> A. R<SMALL>ODRIGUEZ</SMALL></P></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top" ALIGN="center">Director</TD></TR>
<TR STYLE="page-break-inside:avoid ; font-family:Times New Roman; font-size:10pt">
<TD VALIGN="top" ALIGN="center"><B>Eduardo A. Rodriguez</B></TD>
<TD VALIGN="bottom">&nbsp;&nbsp;</TD>
<TD VALIGN="top"></TD></TR>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit 4.9 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>AMENDMENT NO. 8 TO </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ONEOK, INC. 401(K) PLAN </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(As
amended and restated effective January&nbsp;1, 2014) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, the Introductory Statement
shall be amended to add the following paragraph after the second paragraph thereof as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Effective as of the end of the day on
December&nbsp;31, 2018 (the &#147;Merger Date&#148;), the ONEOK, Inc. Profit Sharing Plan (the &#147;Profit Sharing Plan/Plan&#148;) shall be merged with and into, and continued in the form of, the ONEOK, Inc. 401(k) Plan (the &#147;401(k)
Plan&#148;). The merger of the Profit Sharing Plan with and into the 401(k) Plan shall be effective as of January&nbsp;1, 2019. The provisions of the 401(k) Plan shall govern for all purposes, unless as otherwise provided in Addendum A. In
connection with the transfer of assets of the 401(k) Plan, the ONEOK common stock fund relating to the Profit Sharing Plan will be consolidated operationally by the transfer of the assets to the 401(k) Plan, and shall solely remain within the ONEOK,
Inc. Employee Stock Ownership Plan account under the 401(k) Plan and shall thereafter be governed by the terms of the 401(k) Plan. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Addendum A, in the form attached as Addendum A hereto, is added to the Plan
following Article&nbsp;XXV. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article I Paragraph 56 is amended in its entirety
as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The common stock issued by the Employer or an Affiliate, which stock is readily tradable on an established securities market,
within the meaning of Code Section&nbsp;409(l). </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article I is amended to add the
following new Paragraph 74: </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:9%; font-size:10pt; font-family:Times New Roman"><B>74. &nbsp;&nbsp;&nbsp;&nbsp;ONEOK, Inc. Common Stock </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:9%; font-size:10pt; font-family:Times New Roman">All &#147;Qualifying Employer Stock (and/or Qualifying Employer Securities)&#148; as defined in Paragraph 56. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5.&nbsp;&nbsp;&nbsp;&nbsp;Effective April&nbsp;2, 2018, the following definitions are added to Article I as Paragraphs 75, 76, and 77,
respectively: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B>&#147;</B><B>Direct <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover</B><B>&#148;</B> means a direct
rollover from a Participant&#146;s Account (other than Roth 401(k) Elective Deferrals or <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contributions) to an <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution
Account established for the Participant. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">1 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><FONT STYLE="white-space:nowrap">&#147;In-Plan</FONT> Roth Rollover Contribution&#148;
</B>means a contribution made to the Plan in accordance with Section&nbsp;402A(c)(4) of the Code and Article V of the Plan by the Participant to the Participant&#146;s <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution
Account consisting of a distribution from a Participant&#146;s Account, other than a distribution of a Participant&#146;s Roth 401(k) Elective Deferrals. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><B><FONT STYLE="white-space:nowrap">&#147;In-Plan</FONT> Roth Rollover Contribution Account&#148;</B> means the
<FONT STYLE="white-space:nowrap">sub-account</FONT> established under the Plan to account for a Participant&#146;s <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contributions. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Paragraph 1 of Article II is amended by replacing the second subparagraph as follows
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, the term &#147;Employee&#148; for purposes of eligibility shall exclude the following classes of
individuals: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Individuals hired on a temporary basis or as interns and who do not complete a Year of Service. Individuals who are
nonresident aliens and receive no earned income from the Company which constitutes U.S. source income. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018, the second sentence of Article III, Paragraph 2, Section A.2 shall be revised as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><FONT STYLE="white-space:nowrap">Catch-Up</FONT> Contributions for a Participant may be made under the Plan, and for a taxable
year may not exceed (1)&nbsp;the limit on <FONT STYLE="white-space:nowrap">Catch-Up</FONT> Contributions under Code Section&nbsp;414(v)(2)(B)(I) for the taxable year or (2)&nbsp;when added to other Elective Deferrals, <U>100</U>&nbsp;percent of the
Participant&#146;s Compensation (but without giving effect to the limits set forth in Section&nbsp;401(a)(17) of the Code) for the taxable year. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">8.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019 Article III paragraph 5 shall be revised to add the following sentence: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">However; in no event shall contributions be made after the time required by law for filing the Company&#146;s federal income tax return
(including extensions) for the year with respect to which the contribution is made; provided, that no Company contributions may be made in any Plan Year to the extent that such contributions would not be deductible by the Company for federal income
tax purposes. Notwithstanding the above, Qualified Nonelective Contributions, Company Matching Contributions and Company Contributions are permitted in accordance with EPCRS corrections, even if not deductible. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">9.&nbsp;&nbsp;&nbsp;&nbsp;Effective April&nbsp;1, 2019, Article III, Paragraph 9, Section A.2 is amended by replacing &#147;January 1,
2015&#148; with &#147;April 1, 2019&#148; in both the first and second sentence thereof. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">10.&nbsp;&nbsp;&nbsp;&nbsp;Effective April&nbsp;1, 2019, Article III, Paragraph 9, Section
A.3 is revised in its entirety as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Automatic Elective Deferrals made on behalf of Participants shall be designated Roth
Elective Deferrals to the extent such Participant has a current Roth Elective Deferral of at least 1% but no more than 5% as of April&nbsp;1, 2019. In the event a Participant has such current Roth Elective Deferral, but does not have a current
Elective Deferral, his or her Roth Elective Deferral automatically increased to 6% on April&nbsp;1, 2019. In the event a Participant has both a current Elective Deferral and a current Roth Elective Deferral, such Participant shall be subject to the
Automatic Elective Deferral provisions of Paragraph 9.A.2 above, except his or her current Roth Elective Deferral shall be taken into account for purposes of determining the Automatic Elective Deferral necessary to achieve a total Reduction in
Compensation of 6%. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">11.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article III, Paragraph 9, Section A.3 is revised to
reflect that Automatic Elective Deferrals will be made on behalf of each eligible Employee who has elected a Reduction in Compensation of less than 6% as of April&nbsp;1, 2019. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">12.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article III Paragraph 9, Section A, is amended by adding Subsection 7 as follows:
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">7.&nbsp;&nbsp;&nbsp;&nbsp;The Reduction in Compensation election of each Participant (who is not suspended from making Elective Deferrals)
who has made an affirmative election or on whose behalf Automatic Elective Deferrals are being made shall be increased annually by 1% of Compensation, unless and until the percentage of Compensation being contributed on behalf of such Participant
reaches 10%. Each Participant subject to automatic enrollment will be notified and have an opportunity to affirmatively elect otherwise in accordance with procedures established by the Plan Administrator and shall not be subject again to such annual
increase; however, such Participant may be subject to automatic enrollment again in accordance with provisions of this Article III. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Each
such applicable annual increase shall occur on April&nbsp;1, except with regard to the first such annual increase which shall not apply to a Participant within the first six months following the date such Automatic Elective Deferrals began for such
Participant. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">13.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article III, Paragraph 9, Section E is amended such that
references to January&nbsp;1, 2015 shall be revised to reflect April&nbsp;1, 2019. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">14.&nbsp;&nbsp;&nbsp;&nbsp;Effective April&nbsp;2,
2018, Article V, Paragraph 4 is amended by adding is amended Section E as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">E.&nbsp;&nbsp;&nbsp;&nbsp;<U><FONT
STYLE="white-space:nowrap">After-Tax</FONT> <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution.</U> Notwithstanding the provisions of Paragraph 3 above, a Participant, who is still currently employed by the Company, may elect
to rollover any portion of his <FONT STYLE="white-space:nowrap">After-Tax</FONT> Deposits (including earnings thereon) which is otherwise distributable under the terms of the Plan, except for any amount which is part of an outstanding loan balance
pursuant to Paragraph 18 of Article XII, which is not considered Roth 401(k) Elective Deferrals under the Plan and meets the definition of an &#147;eligible rollover distribution&#148; to an <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth
Rollover Account. Any such rollover must be made in the form of a Direct <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover. Assets converted in such a </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>

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way shall be separately accounted for and shall remain subject to distribution constraints found in Article XII applicable to them prior to the conversion. Such assets shall also retain any
distribution rights, applicable to them prior to the conversion. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding anything in the Plan to the contrary, an <FONT
STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution is not a rollover contribution for purposes of the Plan. The Plan will take into account the amounts attributable to an <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth
Rollover Contribution for purposes of determining whether a Participant&#146;s vested account balance exceeds $5,000 for purposes of Article XI, Section&nbsp;3. An <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution shall not
be treated as a distribution for purposes of Sections 401(a)(11) and 411(d)(6)(B)(ii) of the Code. Each such <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover shall be subject to its own <FONT STYLE="white-space:nowrap">5-taxable</FONT>
year period of participation and subject to the requirements of Code Section&nbsp;408A(d)(3)(F). In Plan Roth Rollover Contributions shall be subject to the same rules as detailed in Paragraph 3 of Article III, except that <FONT
STYLE="white-space:nowrap">After-Tax</FONT> amounts transferred to an <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contribution Account shall additionally be subject to the suspension requirements of Paragraph 3 of Article XII upon
their subsequent withdrawal. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">For purposes of the initial Direct <FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover under this
subparagraph E., <FONT STYLE="white-space:nowrap">After-Tax</FONT> Deposits shall be exempt from the requirements of Paragraph 3 of Article XII. Further such <FONT STYLE="white-space:nowrap">After-Tax</FONT> Deposits shall be exempt from the
requirements of Paragraph&nbsp;2 of Article XII relating to minimum and proportional withdrawal requirements and the sale of ONEOK, Inc. Common Stock in connection with a withdrawal of a Participant&#146;s
<FONT STYLE="white-space:nowrap">After-Tax</FONT> Deposits. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">For purposes of determining eligibility for
<FONT STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contributions, a Participant&#146;s surviving spouse, alternate payee or former spouse and <FONT STYLE="white-space:nowrap">non-spouse</FONT> beneficiaries shall not be eligible to make <FONT
STYLE="white-space:nowrap">In-Plan</FONT> Roth Rollover Contributions. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">15.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019 the
following Paragraph 5 shall be added to Article VII </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman"><B>5.&nbsp;&nbsp;&nbsp;&nbsp;Permissible Types of Company Contributions </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Contributions by and from the Company to the Trust and Plan may be made in cash or other property in kind; provided, that no assets may be
contributed if such contribution would constitute a prohibited transaction under Code Section&nbsp;4975, or corresponding provisions of Section&nbsp;406 of ERISA, if applicable. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">16.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018, the second sentence of the second paragraph of Article VIII, Paragraph 2 is amended
as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><FONT STYLE="white-space:nowrap">Catch-Up</FONT> Contributions for a Participant for a taxable year may not exceed
(1)&nbsp;the dollar limit on <FONT STYLE="white-space:nowrap">Catch-Up</FONT> Contributions under Code Section&nbsp;414(v)(2)(B)(i) for the taxable year or (2)&nbsp;when added to other Elective Deferrals, <U>100</U>&nbsp;percent of the
Participant&#146;s Compensation for the taxable year. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">17.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article IX, Paragraph 1 Section E
is amended as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">E.&nbsp;&nbsp;&nbsp;&nbsp;<U>Investment Options</U>. The investment options existing and recognized under the Plan
and Trust <U>shall be determined by the Committee from time to time in its sole</U> <U>discretion</U>, shall be established as hereinabove provided, and regularly listed and described to Participants by written information and memoranda, and by
electronic media, furnished by and at the direction of the Committee from time to time. <STRIKE>The investment options shall include ONEOK, Inc. Common Stock and other investments determined by the Committee or required hereunder. </STRIKE>It is
intended that the investment options shall provide Participants investment alternatives which will provide a Participant with a reasonable opportunity to materially affect the potential return on amounts in his/her Plan account and the degree of
risk to which such amounts are subject, and to choose from at least three (3)&nbsp;investment options, each of which is diversified, has materially different risk and return characteristics, and which in the aggregate enable the Participant to
achieve investment direction of risk and return characteristics within the range normally appropriate for such Participant, and when combined with investments in other alternatives will tend to allow reasonable diversification so as to minimize risk
of losses, taking into account all circumstances. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant may, by written, telephone voice response or internet direction to the
Committee, and in turn to the Trustee, as provided above, direct that his/her deposits and account, the Company&#146;s contributions and any other cash be deposited in such investment options. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant who was a Participant in the Prior ONEOK, Inc. Thrift Plan or the KGS 401(k) Thrift Plan may retain in his/her account stock or
securities which were his/her prior directed investments in such Plans to the extent, and as the Committee may prescribe by written memoranda and instructions pertaining to the Plan. The Committee may prescribe the manner in which dividends or other
amounts received from such retained investments may be invested, and may limit or prescribe additional investment or reinvestment in such stock or securities. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>Except to the extent otherwise required by applicable law or as may be necessary for the Committee to satisfy its fiduciary duties and
obligations under ERISA,</U> the Plan shall provide for an investment option that is comprised of shares of ONE Gas, Inc. common stock issued under the Plan to Participants as a dividend to shareholders of ONEOK, Inc. Common Stock in connection with
the Separation (as described in Article XXV). Any such investment in ONE Gas, Inc. common stock after the Separation shall be subject to the provisions of this Plan applicable to other Plan investment options except that (1)&nbsp;the investment in
ONE Gas, Inc. common stock is authorized by the Company solely to enable Participants who own ONEOK, Inc. Common Stock under the Plan to participate in the Separation under the same terms as other shareholders of ONEOK, Inc. Common Stock<STRIKE>;
(2)</STRIKE><STRIKE></STRIKE><STRIKE>&nbsp;the Committee shall not have the discretion to eliminate ONE Gas, Inc. common stock as an investment option unless the Committee determines, in its sole discretion, that ONE Gas, Inc. is insolvent or
otherwise in danger of imminent collapse</STRIKE>; </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>

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(2)&nbsp;&nbsp;&nbsp;&nbsp;after the Separation, no additional shares of ONE Gas, Inc. common stock may be purchased in any manner whether by deposit, exchange, transfer, reinvestment of
dividends or otherwise; (3)&nbsp;ONE Gas, Inc. common stock shall not be subject to the diversification requirement (under the meaning of 404(a)(1)(C) of ERISA <STRIKE>applicable to other Plan investment options</STRIKE>); and (4)&nbsp;Participants
shall be notified of the importance of diversifying their overall investment portfolio. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman"><U>Except to the extent otherwise required by
applicable law or as may be necessary for the Committee to satisfy its fiduciary duties and obligations under ERISA, the Plan shall provide for an investment option that is comprised of ONEOK, Inc. Common Stock in accordance with the provisions of
paragraph 9 of this Article IX.</U> Notwithstanding any other provisions herein, the right of Participants to direct the purchase, sale or transfer of ONEOK, Inc. Common Stock for their Plan Accounts may be limited, suspended and restricted from
time to time, and for such periods of time as the Committee, in its discretion, determines to be necessary and appropriate for administration of the Plan and Trust, including, without limitation, for the purpose of determining the amount and timing
of ESOP Dividend Distributions and ESOP Dividend Distribution/Additional Deferral Contributions under the Plan. The Committee may direct such limitations, suspensions and restrictions to be made, and cause Participants and the Trustee to be given
notice thereof, in the manner it determines reasonable and practical in the circumstances. <STRIKE>Notwithstanding the foregoing, the Committee shall not have the discretion to eliminate ONEOK, Inc. Common Stock as an investment option under the
Plan, and the continued availability of ONEOK, Inc. common stock as an investment option under the Plan shall be presumed prudent, unless the Committee determines, in its sole discretion, that the Company is insolvent or otherwise in danger of
imminent collapse.</STRIKE> </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The investments selected and directed by Participants may increase or decrease in value due to changes and
fluctuations in market conditions and other circumstances, and the Company, Committee and Trustee do not warrant or guarantee, by or under the Plan or otherwise, the value of any security or other investment directed by a Participant hereunder. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing, the investment by a Participant who is a Section&nbsp;16 Person shall be subject to the limitations and
restrictions and other provisions of paragraph 8 of this Article IX, below, with respect to any Discretionary Transactions involving the investment of his/her deposits, the Company&#146;s contributions and any other cash attributable to his/her
account. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding anything to the contrary expressed or implied herein, no member of the Committee who is a senior officer and
reports directly to the Company&#146;s Chief Executive Officer shall be permitted to vote on the continued availability of ONEOK, Inc. Common Stock as an investment option under the Plan. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding anything to the contrary expressed or implied herein, the common stock of Westar Energy, Inc. shall be eliminated as an
investment option under the Plan upon the earlier to occur of (1)&nbsp;the effective date of the merger of Westar Energy, Inc. with or </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>

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acquisition by Great Plains Energy, Inc. or any affiliated entity; or (2)&nbsp;June&nbsp;30, 2017. Participants who own shares of Westar Energy, Inc. in their Plan Account immediately prior to
consummation of the transaction contemplated in option (1)&nbsp;above will participate in such transaction on the same financial terms as regular shareholders of Westar Energy, Inc. common stock, but will only receive cash instead of a combination
of cash and Great Plains Energy, Inc. common stock. Participants who own shares of Westar Energy, Inc. in their Plan Account on the date specified in option (2)&nbsp;above will be deemed to have elected to sell all of their Westar Energy, Inc.
shares on such date in accordance with the Plan&#146;s terms. All proceeds from the liquidation of Westar Energy, Inc. common stock, whether the result of option (1)&nbsp;or option (2)&nbsp;above, shall be reinvested in the Participant&#146;s Plan
Account according to the Participant&#146;s existing investment elections on file with the Plan Administrator. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">18.&nbsp;&nbsp;&nbsp;&nbsp;Effective for the period of November&nbsp;1, 2018 to December&nbsp;31, 2018, Article X, Paragraph 2, Section A is
amended as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">A.&nbsp;&nbsp;&nbsp;&nbsp;<U>Participant ESOP Reinvestment Election</U>. Any ESOP Dividend on ONEOK,
Inc. Common Stock which in accordance with the Plan provisions <U>is treated as a <FONT STYLE="white-space:nowrap">non-taxable</FONT> dividend pursuant to Code Section</U><U></U><U>&nbsp;404(k) and, either </U>(1)&nbsp;is payable in cash to the
Participants in the Plan or their beneficiaries, or (2)&nbsp;is payable to the Plan and is to be distributed in cash to Participants in the Plan or their beneficiaries not later than ninety (90)&nbsp;days after the close of the Plan Year in which
paid, may at the election of such Participants or their beneficiaries, be (A)&nbsp;paid as provided in clause (1)&nbsp;or (2) of this subparagraph A, above, or (B)&nbsp;paid to the Plan and reinvested in ONEOK, Inc. Common Stock. <U>Any ESOP
Dividend on ONEOK, Inc. Common Stock that is not treated as <FONT STYLE="white-space:nowrap">non-taxable</FONT> pursuant to Code Section</U><U></U><U>&nbsp;404(k) shall be paid to the Plan and reinvested in ONEOK, Inc. Common Stock.</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">19.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article X, Paragraph 2, Sections A and B, are amended in their entirety as follows:
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">A.&nbsp;&nbsp;&nbsp;&nbsp;<U>Participant ESOP Reinvestment Election</U>. Any ESOP Dividend on ONEOK, Inc. Common Stock
shall be paid to the Plan and reinvested in ONEOK, Inc. Common Stock in accordance with the provisions of subparagraph B., below. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">B.&nbsp;&nbsp;&nbsp;&nbsp;<U>Dividend Reinvestment</U>. With respect to each Participant who is entitled to receive an ESOP
Dividend on ONEOK, Inc. Common Stock, a corresponding ESOP Dividend Distribution/Additional Deferral Contribution shall be credited to and remain in the Participant Account and shall not thereafter be distributable under the provisions of this
paragraph, unless otherwise directed and approved by the Committee. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">20.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018, Article X, Paragraph 10, Section
B is revised in its entirety as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">B.&nbsp;&nbsp;&nbsp;&nbsp;Company contributions invested in Employer Securities.
In the case of the portion of the account attributable to employer contributions other than elective deferrals which is invested in Employer Securities, each Applicable Individual who&#151; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">1.&nbsp;&nbsp;&nbsp;&nbsp;is a Participant who has completed at least 3 years of service, or </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:8%; font-size:10pt; font-family:Times New Roman">2.&nbsp;&nbsp;&nbsp;&nbsp;is a beneficiary of a Participant described in clause (i)&nbsp;or of a deceased Participant, </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">may elect to direct the Plan to divest any such Employer Securities and to reinvest an equivalent amount in other investment
options meeting the requirements of paragraph 10.C. of this Article IX, below. <U>This provision is not intended to limit any other right to divest investments otherwise provided for in the Plan.</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">21.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018, Paragraph 2 of Article XII is amended to remove the second paragraph thereof in its
entirety. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">22.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018, Paragraph 18 of Article XII is amended by adding Sections K and L as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">K.<B>&nbsp;&nbsp;&nbsp;&nbsp;</B>If a Participant has an outstanding loan balance at the time his employment terminates, the
entire outstanding principal and accrued interest shall be due and payable by the end of the cure period specified in the separate loan procedures. Any outstanding loan amounts that are immediately due and payable hereunder shall be treated as if
the Participant had defaulted on the outstanding loan. Notwithstanding the foregoing, if a Participant with an outstanding loan balance terminates employment with the Company and all Subsidiaries such Participant may elect, within 60 days of such
termination, to roll over the outstanding loan to an eligible retirement plan, as defined in Article V, that accepts such rollovers. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">L.&nbsp;&nbsp;&nbsp;&nbsp;All loans shall be made and administered in accordance with separate loan procedures that are hereby incorporated
into the Plan by reference. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">23.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XII, Paragraph 1 Section C is amended as
follows: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">C.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">No hardship withdrawal shall be permitted unless the Participant has obtained all currently available
distributions from the Participant&#146;s Account, other than hardship distributions or loans. </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">24.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XII, Paragraph 1, Section F is deleted in its entirety. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">25.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XII, Paragraph 1, Section I is amended to provide that any participant who
was subject to the suspension provisions of Paragraph 1, Section F as of December&nbsp;31, 2018 shall be reinstated to the amount of his/her elected Reduction in Compensation in effect at the time of the hardship withdrawal effective January&nbsp;1,
2019. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">26.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XII, Paragraph 11,
Section F is amended to delete the second paragraph thereof in it is entirety. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">27.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2018,
Paragraph 19 of Article XII is amended to revise the reference to Paragraph 16 to reflect Paragraph 18. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">28.&nbsp;&nbsp;&nbsp;&nbsp;Effective April&nbsp;1, 2018, Article XXIII, Part C., Paragraph 2 is replaced in its entirety as follows: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant shall be considered totally and permanently disabled if such Participant is entitled to and receiving long-term disability
benefits under the Company&#146;s long-term disability policy or is determined to be totally disabled by the Social Security Administration. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">29.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XXIII, Part G., Paragraph 1.B is amended to revise the first sentence of
the first full paragraph as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">B.&nbsp;&nbsp;&nbsp;&nbsp;A Participant who has a financial hardship, as determined by the Committee,
and who has made all available withdrawals pursuant to subparagraph 1(a), above, and paragraphs 3 and 4 of this Part G, below, as applicable, and pursuant to the provisions of any other plans of the Company of which he is a Participant <STRIKE>and
who has obtained all loans available pursuant to Article XII of the Plan</STRIKE> and pursuant to the provisions of any other plans of the Company of which he is a Participant may withdraw from his/her Transferred NGC Rollover Contribution Account
and his/her Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account amounts not to exceed the amount determined by the Committee as being available for withdrawal pursuant to this Paragraph. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">30.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Article XXIII, Part G., Paragraph 1. B is amended to delete the second sentence of
the second full paragraph in its entirety as follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The above notwithstanding, (1)&nbsp;withdrawals under this Paragraph from a
Participant&#146;s Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account shall be limited to the sum of the Participant&#146;s Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Contributions to the Plan, plus
income allocable thereto and credited to the Participant&#146;s Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account as of December&nbsp;31, 1988, less any previous withdrawals of such amounts, and (2)&nbsp;amounts allocated to
a Participant&#146;s Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account pursuant to the provisions of Subparagraph 2(e), below, of this Part G shall not be subject to withdrawal. <STRIKE>A Participant who makes a withdrawal
from his/her Transferred NGC <FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account under this Paragraph may not make elective contributions or employee contributions to the Plan or any other qualified or nonqualified plan of the Company for a
period of twelve (12) </STRIKE> </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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<STRIKE>months following the date of such withdrawal. </STRIKE>A Participant shall be allowed a Qualified Reservist Distribution with respect to a Transferred NGC
<FONT STYLE="white-space:nowrap">Before-Tax</FONT> Account in the same manner and to the same extent as is applicable under Article XII of the Plan. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ADDENDUM A</U> </B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>INTRODUCTION </U></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Effective as of the
end of the day on December&nbsp;31, 2018 (the &#147;Merger Date&#148;), the ONEOK, Inc. Profit Sharing Plan (the &#147;Profit Sharing Plan/Plan&#148;) shall be merged with and into, and continued in the form of, the ONEOK, Inc. 401(k) Plan (the
&#147;401(k) Plan&#148;). The merger of the Profit Sharing Plan with and into the 401(k) Plan (and the corresponding transfer of assets) shall comply with Sections 401(a)(12), 411(d)(6), and 414(l) of the Code and the regulations thereunder. All
assets of the Profit Sharing Plan (collectively the &#147;Transferred Benefits&#148;) shall be transferred into the 401(k) Plan effective as of January&nbsp;1, 2019. The purpose of this Addendum is to provide for the Plan merger. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">All Code Section&nbsp;411(d)(6) benefits accrued under the Profit Sharing Plan have been continued under the 401(k) Plan and shall be protected under the
401(k) Plan to the extent required by law. The Profit Sharing Plan will continue to provide allocations on or after the Effective Date. The 401(k) Plan will hold and maintain the Transferred Benefits from the Profit Sharing Plan in a separate
subaccount until the Participants receive their Plan distributions. In connection with the transfer of assets, the ONEOK common stock fund relating to the Profit Sharing Plan will be consolidated operationally by the transfer of the assets solely to
the 401(k) Plan, within the ONEOK, Inc. Employee Stock Ownership Plan account under the 401(k) Plan and shall thereafter be governed by the terms of the 401(k) Plan. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">The terms and conditions of the Profit Sharing Plan are hereby incorporated by reference, solely as applicable, to the extent necessary to give effect to the
foregoing paragraphs. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Terms used in this Addendum A shall, unless defined in this Addendum A or otherwise noted, have the meaning given to those terms
elsewhere in the Plan. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">i </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE I </U></B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>DEFINITIONS </U></B></P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The
following definitions apply for purposes of this Addendum A, unless otherwise stated: </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.1.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;Compensation&#148; means the total annual base salary plus any lump sum merit pay and promotion awards,
gainshare awards, cash incentive compensation, commissions, overtime pay, and shift differentials paid to a Participant by the Company, but excluding amounts credited by the Company under a plan of deferred compensation to the extent that such
notional contributions are not includible in gross income of the Participant for the taxable year in which notionally contributed. Provided, that any reduction in salary elected and deferred by the Participant under the cash or deferred arrangement
under the 401(k) Plan or any other defined contribution or deferred compensation plan established or maintained by the Company, or under Code Sections 125, 132(f)(4), 402(e)(8) and 457 pursuant to the employee benefit plans of the Company shall be
included in determining compensation hereunder. For purposes of this definition incentive compensation shall be treated as paid to a Participant at the time of actual payment. A determination or the interpretation of this definition as to whether
any particular item or amount constitutes or is within one of the foregoing stated words or terms shall be made by the Committee, in its sole discretion, as the Plan administrator, as authorized and provided for under Article XV, Paragraph 2 of the
401(k) Plan. </P></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:9%; font-size:10pt; font-family:Times New Roman">For any Plan Year beginning after December&nbsp;31, 2018, the annual compensation of each Participant taken
into account in determining allocations shall not exceed Two Hundred Sixty Thousand Dollars ($280,000), as adjusted for <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">cost-of-living</FONT></FONT> increases in accordance with Code
Section&nbsp;401(a)(17)(B). Annual compensation means compensation during the Plan Year or such other consecutive <FONT STYLE="white-space:nowrap">12-month</FONT> period over which compensation is otherwise determined under the Plan (the
determination period). The <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">cost-of-living</FONT></FONT> adjustment in effect for a calendar year applies to annual compensation for the determination period that begins with or within
such calendar year. </P> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.1A</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Day of Service</U>&#148; means a calendar day on which an Employee is employed by the Company and
which is a day of service as recognized and described for purposes of determining the allocation of contributions and for other related purposes to the extent and as provided for in 29 CFR <FONT STYLE="white-space:nowrap">&#167;2530.200b-2</FONT>
and <FONT STYLE="white-space:nowrap">&#167;2530.200b-3</FONT> in the Department of Labor regulations and in Paragraph 35 of Article I of the Plan, above, defining the term Hours of Service and an equivalency in Days of Service.
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.2.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Early Retirement Age</U>&#148; means age 50. </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.3.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Early Retirement Date</U>&#148; means the first day of the month coinciding with or next following the
date the Participant terminates employment by Retirement after he or she attains his or her Early Retirement Age and prior to attaining the Normal Retirement Age. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.4</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Effective Date</U>&#148; means January&nbsp;1, 2019, except as provided herein, or to the extent
required pursuant to a statute or regulation. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.5.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Employer Stock</U>&#148; means common stock issued by the Employer or an Affiliate, which stock is
readily tradable on an established securities market. If there is no common stock which meets the foregoing requirement, the term &#147;Employer Stock&#148; means common stock issued by the Employer or an Affiliate having a combination of voting
power and dividend rights equal to or in excess of (a)&nbsp;that class of common stock of the issuer having the greatest voting power, and (b)&nbsp;that class of common stock of the issuer having the greatest dividend rights. Noncallable preferred
stock shall be deemed to be Employer Stock if such stock is convertible at any time into stock which constitutes Employer Stock hereunder and if such conversion is at a conversion price which (as of the date of the acquisition by the Trust) is
reasonable. For purposes of the preceding sentence, pursuant to regulations under 409(e) of the Code, preferred stock shall be treated as noncallable if after the call there will be a reasonable opportunity for a conversion which meets the
requirements of the preceding sentence. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.6</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Group C Employee</U>&#148; means an Employee who is not represented by a collective bargaining unit or
organization and who is a Group C Employee, as defined in the Retirement Plan (as herein defined), which definition of Group C Employee in the said Retirement Plan, as amended thereunder from time to time, is incorporated herein by reference for all
purposes. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.7.</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Hours of Service</U>&#148; means all hours for which the Employee is either directly or indirectly
compensated by the Company for performing duties for the Company. These hours are to be credited to the Employee in the computation period during which the duties were performed and not when paid. The determination of the Hours of Service for
reasons other than the performance of duties shall be made in accordance with 29 CFR <FONT STYLE="white-space:nowrap">&#167;2530.200b-2(b)</FONT> in the Department of Labor regulations. The determination of the computation to which the Hours of
Service are credited shall be made in accordance with Section&nbsp;29 CFR <FONT STYLE="white-space:nowrap">&#167;2530.200b-2(c)</FONT> in the Department of Labor regulations; and based on an equivalency to days, referred to and defined in the Plan
as Days of Service, as recognized and permitted in 29 CFR&#167; <FONT STYLE="white-space:nowrap">2530.200b-3</FONT> of Department of Labor regulations. The rate of equivalency used pursuant to such regulations and pursuant to the Plan under this
paragraph shall not be considered to apply or control with respect to any other determination of hours of service or other periods of service in any other context or for any other purposes aside from the Plan, unless specifically stated.
Accordingly, the Plan shall determine the number of Hours of Service to be credited to Employees under the Plan in any quarter or other computation period by the Employee being credited with ten (10)&nbsp;hours of service for each Day of Service for
which the Employee would be required to be credited with at least one (1)&nbsp;Hour of Service under 29 CFR <FONT STYLE="white-space:nowrap">&#167;2530.200b-2</FONT> in the Department of Labor regulations. Credit is also to be given for each hour of
back pay for which back pay has been awarded or agreed to by the Employer, and these hours are to be credited to the Employee in the computation period during which back pay has been awarded or agreed to be given by the Employer, and these hours are
to be credited to the Employee in the computation period during which duties were performed not paid. Based upon the foregoing, an Employee should be </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">3 </P>

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credited with Days of Service and equivalent Hours of Service for any customary period of work during which no duties are performed by the Employee in his/her job due to the Employee being absent
for any authorized reason in accordance with established Company policy and procedure, including, without limitation, being laid off for a temporary period, on a Company-approved leave of absence, on sick or disability leave, or on jury or military
duty, or if the Employee is not working due to a labor-management dispute. Notwithstanding the foregoing, no more than five hundred one (501)&nbsp;Hours of Service and its equivalency in Days of Service under this paragraph shall be credited for any
single continuous period for which an Employee is paid or entitled to payment on account of a period of time during which the Employee performs no duties of his/her job (whether or not such single continuous period occurs in a single quarter of a
Plan Year or Plan Year). This paragraph and definition shall be construed so as to resolve any ambiguities in favor of crediting Employees with service with respect to the Plan. </TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.8</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Normal Retirement Age</U>&#148; means age 65. </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.9</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Normal Retirement Date</U>&#148; means the first day of the month coinciding with or next following
the date the Participant attains his or her Normal Retirement Age. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.10</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Profit Sharing Plan</U>&#148; means the ONEOK, Inc. Profit Sharing Plan as set forth herein this
Addendum A, as the same may be amended from time to time. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.11</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Profit Sharing Account</U>&#148; means the separate account to which all Company contributions for
each particular Participant are to be allocated, and in which all cash and other assets held by the Trustee under the Plan shall be maintained and administered under the Plan and Trust for such Participant. </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.12</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Plan</U>&#148; means the Profit Sharing Plan, for purposes of this Addendum A. </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.13</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Quarterly Period&#148;</U> means a period of three consecutive calendar months that begins on the
first day of January, April, July or October. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.14</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Quarterly Compensation</U>&#148; means the Compensation within the applicable Quarterly Period.
</P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.15</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Quarterly Period of Service for Benefit Accrual</U>&#148; means a Quarterly Period during which an
Employee has not less than a month as an Employee. If a Participant enters the Plan other than on the first day of the Quarterly Period, all Days of Service performed by the Participant as an Employee during that Quarterly Period, whether or not
performed as a Participant, shall be treated as Days of Service as a Participant. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.16</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Retirement</U>&#148; means the termination of a Participant&#146;s employment with the Company by
retirement on or after he or she has attained at least his or her Early Retirement Age or Normal Retirement Age. </P></TD></TR></TABLE>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">4 </P>

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<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.17</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Retirement Date</U>&#148; means the first day of the month coinciding with or next following the date
a Participant terminates employment with the Company by his or her Retirement. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.18</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Retirement Plan</U>&#148; means the ONEOK, Inc. Retirement Plan established and maintained by the
Company. Prior to January&nbsp;1, 2014, the ONEOK, Inc. Retirement Plan was known as the Retirement Plan for Employees of ONEOK, Inc. and Subsidiaries. </P></TD></TR></TABLE> <P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.19</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147; <U>Retirement Plan <FONT STYLE="white-space:nowrap">Non-Participation</FONT> Election</U>&#148; means an
irrevocable election in writing signed by a <FONT STYLE="white-space:nowrap">Non-Bargaining</FONT> Unit Employee who is a Group C Employee under the Retirement Plan that he/she shall be excluded from any and all further accrual of benefits under the
Retirement Plan on or after January&nbsp;1, 2005 which was delivered to the Company or its designee under the Retirement Plan prior to January&nbsp;1, 2005, and in the manner and form that is prescribed by the Company; an irrevocable election in
writing signed by a Group B Employee that he/she shall be excluded from any and all further accrual of benefits under the Retirement Plan on or after July&nbsp;1, 2010, which was delivered to the Company or its designee under the Retirement Plan
prior to July&nbsp;1, 2010, and in the manner and form that is prescribed by the Company; and an irrevocable election in writing signed by a Group A Employee that he/she shall be excluded from any and all further accrual of benefits under the
Retirement Plan on or after January&nbsp;1, 2012 which was delivered to the Company or its designee under the Retirement Plan prior to January&nbsp;1, 2012, and in the manner and form that is prescribed by the Company. </P></TD></TR></TABLE>
<P STYLE="font-size:6pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">1.20</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">&#147;<U>Total Disability</U>&#148; means a physical or mental condition of a Participant which may be expected
to result in death or be of a long and indefinite duration and which renders the Participant incapable of performing any substantial gainful activity and shall be as determined under the Company&#146;s long-term disability policy or as determined to
be totally disabled by the Social Security Administration. </P></TD></TR></TABLE> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE II </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ELIGIBILITY AND PARTICIPATION </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2.1&nbsp;&nbsp;&nbsp;&nbsp;<U>Eligibility</U> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;<U>On or after January</U><U></U><U>&nbsp;1, 2005</U>. Participation in this Plan shall be open to
any Employee who is a <FONT STYLE="white-space:nowrap">Non-Bargaining</FONT> Unit Employee who is either (i)&nbsp;first employed or (ii)&nbsp;rehired by the Company on or after January&nbsp;1, 2005. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;<U>Prior to January</U><U></U><U>&nbsp;1, 2005</U> Any Employee employed by the Company prior to
January&nbsp;1, 2005 shall not be a Participant unless such Employee (1)&nbsp;was not an officer of the Company, made a Retirement Plan <FONT STYLE="white-space:nowrap">Non-Participation</FONT> Election prior to January&nbsp;1, 2005, and is a <FONT
STYLE="white-space:nowrap">Non-Bargaining</FONT> Unit Employee. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">5 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">An Employee of the Company shall become a Participant in the Plan (a)&nbsp;after his or her
employment by the Company in an eligible class, as provided for in Section&nbsp;2.2 of this Addendum, below; provided, however, that all ONE Gas Employees and Former ONE Gas Employees, as defined in Article XXV of the 401(k) Plan, shall not be
eligible to participate in the Plan for time periods after December&nbsp;31, 2013. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">An Employee in active employment at the effective date
of any amendment of the Plan who would have been eligible to participate at an earlier date under the previous Plan provisions governing eligibility and time of service, shall become eligible at such earlier date. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">2.2&nbsp;&nbsp;&nbsp;&nbsp;<U>Commencement of Participation.</U> Any eligible Employee will be treated as a Participant under the Plan as of
the date he/she becomes eligible (including any individual who previously was not employed in an eligible class) in accordance with the terms and provisions thereof and procedures and rules governing enrollment established and implemented by the
Plan Administrator from time to time. </P> <P STYLE="margin-top:18pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">2.3&nbsp;&nbsp;&nbsp;&nbsp;<U>Separate Accounts</U>. The Plan Administrator shall maintain a Profit
Sharing Account for each Plan Participant, to which shall be credited, as of each Valuation Date, the Participant&#146;s share of Company Contributions, Forfeitures under the ESOP, if any, and all earnings and/or losses thereon. The Plan
Administrator may also maintain other accounts/subaccounts as needed. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE III </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>COMPANY CONTRIBUTIONS </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3.1&nbsp;&nbsp;&nbsp;&nbsp;<U>Company Contributions</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The contributions by the Company to the Trust of the Plan are to be in accordance with the following: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;<U>Contributions of One Percent (1%) of Compensation</U>. Subject to subparagraph 3.1(c). and
Section&nbsp;3.2 of this Article 3, below, and subject to the rights of the Company under Article XXIV of the 401(k) Plan, the Company may and expects to make a contribution to the Participant Account of each Participant for each Quarterly Period
beginning with the first Quarterly Period ending on or after the Effective Date of the Plan, which contribution shall be an amount equal to one percent (1%) of the Quarterly Compensation of each Participant. As necessary, the Company may make a <FONT
STYLE="white-space:nowrap">true-up</FONT> contribution on behalf of a Participant equal to the difference between (a) 1% of a Participant&#146;s Compensation and (b)&nbsp;the
<FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">year-to-date</FONT></FONT> allocation of Company Contributions to the Participant. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;<U>Discretionary Additional Contributions.</U> Subject to subparagraph 3.1(c) and Section&nbsp;3.2,
below, and subject to the rights of the Company under Article XXIV of the 401(k) Plan, the Company also may make an additional contribution to the Trust of the Plan for each Plan Year, the amount of which contribution shall be entirely discretionary
with the Company. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">6 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;<U>Company Contributions and Plan.</U> With
respect to the contributions by the Company to the Plan pursuant to Sections&nbsp;3.1(a) and 3.1(b) of this Addendum, above, and for all other purposes, the Plan is intended to be a combination of a qualified profit sharing plan within the meaning
of Code Sections 401(a)(1) and 401(a)(27), and a qualified employee stock ownership plan as described herein, and not a money purchase pension plan. Although the Company plans and expects to make contributions to the Trust of the Plan pursuant to
Sections 3.1(a) and 3.1(b) of this Addendum above, for each Quarterly Period beginning with the first Quarterly Period ending on or after the Effective Date of the Plan, and for each Plan Year ending after the Effective Date of the Plan, the Company
reserves the absolute right to discontinue making or to not make any such contribution or contributions at any time prior to the actual contribution thereof to the Trust, all as the Company determines, in its sole discretion, to be necessary,
advisable or appropriate, and such right may be exercised by the Company without amendment to the Plan, and without notice to Participants or any other restriction, condition or limitation whatsoever to the exercise of such right. With respect to
discretionary contributions by the Company to the Plan pursuant to Section&nbsp;3.1(b) of this Addendum above, and for all other purposes, the Plan is intended to be a combination of a qualified profit sharing plan within the meaning of Code
Sections 401(a) and 401(a)(27), and a qualified employee stock ownership plan as described herein, and not a money purchase pension plan, and such contributions may be made or not made by the Company as it determines in its sole discretion. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3.2&nbsp;&nbsp;&nbsp;&nbsp;<U>Allocation of Company Contributions</U> </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">The contributions to the Trust of the Plan by the Company are to be allocated as follows: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;All quarterly contributions by the Company for any Quarterly Period pursuant to Section&nbsp;3.1(a),
above, shall be allocated effective as of the last day of such Quarterly Period of each Plan Year to the Participant Account of each individual Participant who is an Employee on the last day of the Quarterly Period (including any Employee who
terminated employment with the Company during the Quarterly Period on account of death, Total Disability, or Retirement). </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;All contributions by the Company for any Plan Year pursuant to Section&nbsp;3.1(b) of this Article
III, above, shall be allocated effective as of the last day of such year to the Participant Account of each individual Participant who is an Employee on the last day of the Plan Year (including any Employee who terminated employment with the Company
during the Plan Year due to death, Total Disability, or Retirement) in the same proportion that each such Participant&#146;s Compensation for the Plan Year bears to the total Compensation of all Participants for the Plan Year. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;Allocations may be made to the Participant Accounts of Participants within a reasonable period of
time after the effective date thereof as determined administratively feasible and practicable by the Committee and its authorized representatives. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">7 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE IV </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>VESTING </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4.1&nbsp;&nbsp;&nbsp;&nbsp;<U>Vesting of Company Contributions</U> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Company contributions for the account of a Participant, and any income and earnings therefrom and accretions thereon, shall become vested
in such Participant immediately upon payment of such contributions to the Trustee and receipt by the Trustee of such income, earnings and accretions, and (subject to subsequent loss through decline in value of investments) the Participant may not
thereafter be deprived of such funds under any provision of the Plan. All Accrued Benefits and Participant Accounts of a Participant under the Plan shall be one hundred percent (100%) vested and nonforfeitable at all times. The vesting of benefits
under the Plan for a Participant shall be provided in accordance with the provisions of USERRA contained in Code Section&nbsp;414(u), or corresponding provision of any future tax code. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE V </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>DISTRIBUTIONS FROM THE PLAN </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5.1&nbsp;&nbsp;&nbsp;&nbsp;<U>Determination of Benefits Upon Retirement</U> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant may terminate employment with the Company and retire for purposes of the Plan on the Participant&#146;s Normal Retirement Date or
Early Retirement Date; provided, that if a Participant continues employment with the Company to a later date, the participation of such Participant in the Plan, including the right to allocations pursuant to Section&nbsp;3.2, above, shall continue
until the Participant&#146;s Retirement Date. Upon a Participant&#146;s Retirement Date, or as soon thereafter as administratively feasible, the Committee shall direct the distribution, at the election of the Participant, of the Participant&#146;s
entire vested Accrued Benefit under the Plan in accordance with Section&nbsp;5.5(b), below. </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.2</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Determination of Benefits Upon Termination of Employment; <FONT STYLE="white-space:nowrap">Cash-Out</FONT>
Distribution</U> </P></TD></TR></TABLE> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a) If a Participant&#146;s employment with the Company is terminated for any reason
other than Retirement, Total Disability or death, the Participant shall be entitled to receive distribution of the Participant&#146;s vested Accrued Benefit as provided herein. The distribution and payment of the Participant&#146;s Accrued Benefit
shall be made upon the occurrence of an event that would result in the distribution and payment had the </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">8 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
terminated Participant remained in the employ of the Company (upon the Participant&#146;s Early Retirement or Normal Retirement, Total Disability or death); provided, that at the election of the
terminated Participant, the Committee shall direct the Accrued Benefit of such terminated Participant be paid and distributed to the terminated Participant upon a distribution date as soon as administratively feasible after the terminated
Participant has filed with Committee a request and consent in the form and manner prescribed by the Committee. Any distribution of a terminated Participant&#146;s Accrued Benefit shall be made in a manner that is consistent with and satisfies the
provisions of Section&nbsp;5.5, below, including but not limited to all notice and consent requirements of Code Sections 411(a)(11) and 417 and the Treasury Regulations thereunder. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;The Committee may adopt and administer rules and procedures pursuant to which any distribution from
the Plan to a Participant upon or following the Participant&#146;s termination of employment with the Company may be made, subject to a administratively feasible period of time. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;Notwithstanding the foregoing provisions of this paragraph if the value of a terminated
Participant&#146;s Accrued Benefit does not exceed Five Thousand Dollars ($5,000.00), the Committee shall direct that the entire Accrued Benefit be distributed as soon as administratively feasible; provided, in the event of mandatory distribution
greater than $1,000, if the Participant does not elect to have such distribution paid directly to an Eligible Retirement Plan specified by the Participant in a direct rollover or to receive the distribution directly in accordance with Article V of
the 401(k) Plan, then the Committee shall cause the distribution to be paid in a direct rollover to an individual retirement account designated by the Committee, as provided in Paragraph 10 of Article V of the 401(k) Plan. </P>
<P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.3</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Determination of Benefits Upon Total Disability.</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">In event of a Participant&#146;s Total Disability prior to the Participant&#146;s Retirement Date or other termination of employment with the
Company, the entire Accrued Benefit of the Participant shall be distributed in accordance with the provisions of Sections 5.5 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.4</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Determination of Benefits in Event of Death.</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;Upon the death of a Participant before the Participant&#146;s Retirement Date or other termination
of employment, the Participant&#146;s Accrued Benefit and all amounts credited to the Participant Account of the Participant shall be distributed in accordance with Section&nbsp;5.5, below, to the deceased Participant&#146;s designated beneficiary.
</P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;Upon the death of a terminated Participant, the Participant&#146;s Accrued Benefit and all
amounts credited to the Participant Account of the terminated Participant, if any, shall be distributed in accordance with Section&nbsp;5.5, below, to such terminated Participant&#146;s designated beneficiary. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;The Committee may require proper proof of death and such evidence of the right of any person to
receive payment of the value of the Accrued Benefit of a deceased Participant or deceased terminated Participant, as the Committee, in its discretion, determines to be advisable. The determination by the Committee of a death and of the right of any
person to receive payment or distribution shall be conclusive. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">9 </P>

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<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">5.5</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Form of Benefits; Distribution of Participant Accounts </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;<U>Form of Distribution of Benefits</U>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Except as provided in Paragraph 11 of Article XI of the 401(k) Plan, the distribution of the vested Participant Account and any and all other
Accrued Benefit of the Participant under the Plan shall be in the form of a lump sum distribution. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;<U>Time of Distribution Upon Retirement</U>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant who terminates employment by Retirement after attainment of the Participant&#146;s Normal Retirement Age and elects to receive
his/her Accrued Benefit in the form of an immediate lump sum upon Retirement shall receive such lump sum distribution as soon as administratively feasible, and not later than sixty (60)&nbsp;days after the end of the Plan Year following his/her
Retirement. If the Participant does not elect to receive distribution of his/her Accrued Benefit in the form of an immediate lump sum upon Retirement, the Participant shall be deemed to have made an election to defer the payment and distribution of
the Participant&#146;s Accrued Benefit in accordance with Article XI, Paragraph 6 of the 401(k) Plan . </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;<U>Time of Distribution Upon Termination of Employment Prior to Retirement</U>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A Participant who terminates employment prior to his/her attainment of the Participant&#146;s Normal Retirement Age and elects to receive
his/her benefit in the form of an immediate lump sum upon termination of employment shall receive such lump sum distribution as soon as administratively feasible, and not later than sixty (60)&nbsp;days after the end of the Plan Year in which he/she
terminates employment with the Company. If the Participant does not elect to receive distribution of his/her Accrued Benefit in the form of an immediate lump sum upon termination of employment, the Participant shall be deemed to have made an
election to defer the payment and distribution of the Participant&#146;s Accrued Benefit in accordance with Article XI, Paragraph 6 of the 401(k) Plan. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Accrued Benefit of a Participant who has terminated employment of the Company prior to Retirement may not be paid or distributed without
the Participant&#146;s consent if the value of the Accrued Benefit exceeds Five Thousand Dollars ($5,000.00) and the Accrued Benefit is immediately distributable. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Accrued Benefit of a Participant that has not been distributed after the Participant&#146;s termination of employment with the Company
prior to Retirement shall be considered immediately distributable if all or any part of the Accrued Benefit could be distributed to the Participant (or surviving Spouse) before the Participant attains (or would have attained if not deceased) the
later of the Participant&#146;s Normal Retirement Age or age <FONT STYLE="white-space:nowrap">sixty-two</FONT> (62). </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">10 </P>

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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Before any distribution of the Accrued Benefit is made to a Participant who has terminated
employment with the Company prior to Retirement and has elected, or is deemed to have elected to defer commencement of payment and distribution of any Accrued Benefit, the Participant shall be informed in writing or by electronic or other means
determined and prescribed by the Committee of the right to defer receipt of distribution to the extent provided in the Plan. To receive a distribution of the Accrued Benefit the Participant must consent in writing or by electronic or other means
determined and prescribed by the Committee to the distribution prior to the time of distribution in the form and manner required by the Committee. No significant detriment shall be imposed under the Plan on any Participant who does not consent to
distribution. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Accrued Benefit of a Participant that is immediately distributable shall be distributed as soon as administratively
feasible on and after the time the Participant consents to such distribution in writing or by electronic or other means determined and prescribed by the Committee. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;<U>Time of Distribution Upon Total Disability of Participant.</U> </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">In the event of Total Disability of a Participant, the Participant shall be entitled to receive a distribution of his/her entire Accrued
Benefit in the same manner and at the time provided for with respect to a Participant who terminates employment prior to Retirement under subparagraph 5.5.C. of this Article V. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;<U>Time of Distribution of Death Benefits</U>. </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">In the event of the death of a Participant or terminated Participant, a cash lump sum distribution of the entire Accrued Benefit and
Participant Account of the Participant under the Plan shall be paid and distributed as soon a administratively feasible to the Participant&#146;s Spouse or the Participant&#146;s designated beneficiary or otherwise, as applicable, in accordance with
Article XI of the 401(k) Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">If a Participant who does not elect immediate distribution under Section&nbsp;5.5(c), above, or who has
made the affirmative or deemed election to defer receipt of his/her Participant Account under Paragraph 6 of Article XI of the 401(k) Plan, dies before a complete distribution of the Participant Account has been made, then upon his/her death,
his/her entire Participant Account balance shall be distributed to his/her surviving Spouse, beneficiaries, or legatees in the same manner as in the case of a Participant&#146;s death prior to other termination of his/her employment with the
Company. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">If the Spouse of a deceased Participant or deceased terminated Participant is the beneficiary, the Spouse shall have the right to
receive, at such Spouse&#146;s election, a distribution of the Participant&#146;s entire Accrued Benefit in the form of a cash lump sum distribution as soon as administratively feasible after the Participant&#146;s or terminated Participant&#146;s
death, as the case may be. If the Spouse does not elect to receive a distribution, the Accrued Benefit will not be distributed unless and until the Spouse </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">11 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">
consents to the distribution thereof in writing or by electronic or other means determined and prescribed by the Committee, which consent may be given by the Spouse at any time in the manner
prescribed by the Committee. The distribution to a Spouse upon such consent being received shall be in the form of a cash lump sum distribution. Provided, that the distribution of the Accrued Benefit shall be made to the Spouse in the form of a cash
lump sum distribution not later than the time the deceased Participant or deceased terminated Participant, as applicable, would have attained his/her Normal Retirement Age or age <FONT STYLE="white-space:nowrap">sixty-two</FONT> (62)&nbsp;whichever
is later. Provided, further, that if the Accrued Benefit of the deceased Participant or deceased terminated Participant does not exceed Five Thousand Dollars ($5,000.00) it shall be distributed to the surviving Spouse as soon as administratively
feasible notwithstanding that a request or consent of the surviving Spouse has not been received by the Committee and Plan. </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">If a deceased
Participant or a deceased terminated Participant has designated a beneficiary other than the Participant&#146;s Spouse in accordance with the provisions of Article XIII of the 401(k) Plan, or is not married, the Accrued Benefit of the deceased
Participant or deceased terminated Participant shall be distributed to the designated beneficiary in the form of a cash lump sum distribution as soon as administratively feasible after the death of Participant or terminated Participant, as
applicable, and such distribution may be made without the consent of the designated beneficiary. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">12 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE VI </U></B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>MISCELLANEOUS </U></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">6.1</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Effective Date</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Plan is hereby merged into the 401(k) Plan effective January&nbsp;1, 2019. The Plan originally was effective January&nbsp;1, 2005. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE VII </U></B></P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U><FONT
STYLE="white-space:nowrap">TOP-HEAVY</FONT> </U></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">7.1</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Vesting</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The vesting in Plan benefits for Participants provided in Section&nbsp;4.1, shall be applicable to this Plan as a <FONT
STYLE="white-space:nowrap">top-heavy</FONT> plan. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE VIII </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ONE GAS TRANSFER PROVISIONS </U></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">8.1</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Applicability of Benefits</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;ONE Gas Employees and Former ONE Gas Employees shall not be eligible to and shall not participate in
this Plan, effective for time periods after December&nbsp;31, 2013. </P> <P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>ARTICLE IX </U></B></P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B><U>BENEFICIARIES </U></B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="4%" VALIGN="top" ALIGN="left">9.1</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left"><U>Beneficiary Elections</U> </P></TD></TR></TABLE>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Any beneficiary elections for the Profit Sharing Account made prior to the Effective Date shall become null and void as of the Effective Date.
As of the Effective Date, the beneficiary elections made for the 401(k) Plan and the related provisions of Article&nbsp;XIII of the 401(k) Plan will govern the Profit Sharing Account. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">13 </P>

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<DOCUMENT>
<TYPE>EX-4.10
<SEQUENCE>3
<FILENAME>d916057dex410.htm
<DESCRIPTION>EX-4.10
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<TITLE>EX-4.10</TITLE>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit 4.10 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>AMENDMENT NO. 9 TO </B></P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>ONEOK, INC. 401(K) PLAN </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">(As
amended and restated effective January&nbsp;1, 2014) </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">1.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, the first full sentence of
Paragraph 15.A. of Article I is amended in its entirety to remove the &#147;other termination of employment&#148; terms as follows: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; text-indent:4%; font-size:10pt; font-family:Times New Roman">A.&nbsp;&nbsp;&nbsp;&nbsp;<U><FONT STYLE="white-space:nowrap">Non-Bargaining</FONT> Unit Participants</U>. The total annual
base salary plus any lump sum merit pay and promotion awards, gainshare awards, cash incentive compensation, commissions, overtime pay, and shift differentials paid to a Participant by the Company, but excluding amounts credited by the Company under
a plan of deferred compensation to the extent that such notional contributions are not includible in gross income of the Participant for the taxable year in which notionally contributed and excluding compensation paid after a Participant&#146;s
death <STRIKE>or other termination of employment</STRIKE>. Provided, that any reduction in salary elected and deferred by the Participant under the cash or deferred arrangement of Article III of the Plan, any deferred compensation plan or under Code
Sections 125, 132(f)(4), 402(e)(8) and 457 pursuant to the employee benefit plans of the Company shall be included in determining compensation hereunder. For purposes of this definition incentive compensation shall be treated as paid to a
Participant at the time of actual payment. Provided, further, that the annual compensation of each Participant taken into account under this Plan for any year shall not exceed two hundred sixty thousand dollars ($260,000) in the years beginning
after December&nbsp;31, 2013, (such two hundred sixty thousand dollars ($260,000) amount to be adjusted to reflect increases in the <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">cost-of-living</FONT></FONT> in accordance with
Code Sections 401(a)(17) and 415(d)). The <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">cost-of-living</FONT></FONT> adjustment in effect for a calendar year applies to any period, not exceeding 12 months, over which compensation
is determined (determination period) beginning in such calendar year. Provided, further, that the annual compensation of each Participant taken into account under Plan shall not exceed $260,000 and such $260,000 amount shall be adjusted to reflect
increases in the <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">cost-of-living</FONT></FONT> in accordance with Code Sections 401(a)(17) and 415(d). </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">2.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, the second full paragraph of Paragraph 3 of Article XV is amended in its entirety as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Except for those authorities and responsibilities which are expressly reserved to the Board of Directors herein, the ONEOK, Inc.
Benefit Plan Sponsor Committee shall possess and exercise all <FONT STYLE="white-space:nowrap">non-fiduciary</FONT> &#147;settlor&#148; authority to act on behalf of the Company with respect to the Plan. The ONEOK, Inc. Benefit Plan Sponsor
Committee shall consist of the officers designated as members of the ONEOK, Inc. Benefit Plan Sponsor Committee pursuant to the management committees list maintained by the Company&#146;s Corporate Secretary and their respective successors in title
or duties, authority and function. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">3.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, the following sentence shall be added to
Paragraph 3 of Article XVII: </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">1 </P>

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 <P STYLE="margin-top:0pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">A distribution to an alternate payee under the Plan shall be made as soon as
administratively practicable following the Plan Administrator&#146;s determination that an order is a Qualified Domestic Relations Order. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">4.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2019, Paragraph 1.16 of Article I of Addendum A shall be revised in its entirety as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">&#147;Retirement&#148; means the termination of a Participant&#146;s employment with the Company on or after he or she has
attained at least his or her Early Retirement Age or Normal Retirement Age and completed at least five (5)&nbsp;Years of Service. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">5.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2020, Paragraph 3 of Article XI is amended to insert the following sentence after the
first full sentence thereof: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">At the election of the Participant (or his or her Beneficiary), in lieu of an immediate lump sum payment, the
Participant may elect to distribute his or her account balance under a systematic withdrawal plan providing for cash installment payments payable annually, semi-annually, quarterly, monthly or other periodic time period as permitted by the Committee
and as designated by the Participant&#146;s election. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">6.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2020, Article XI Paragraph 13
is amended to add following sentence at the end of the first full paragraph: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Notwithstanding the foregoing provisions of this Paragraph
13, except as otherwise required by applicable law, <FONT STYLE="white-space:nowrap">in-kind</FONT> distributions of ONEOK, Inc. Common Stock and ONE Gas, Inc. common stock are not available for Participants electing systematic withdrawals pursuant
to Paragraph 3 above. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">7.&nbsp;&nbsp;&nbsp;&nbsp;Effective January&nbsp;1, 2020, Paragraph 1 of Article XV is amended in its entirety as
follows: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">The Plan shall be administered by the ONEOK, Inc. Benefit Plan Administration Committee (the &#147;Committee&#148;) consisting of
the Company&#146;s Chief Financial Officer, the most senior officer with <FONT STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">day-to-day</FONT></FONT> responsibility for the Human Resources function, the most senior officer with <FONT
STYLE="white-space:nowrap"><FONT STYLE="white-space:nowrap">day-to-day</FONT></FONT> responsibility for the Treasury function, and each of their respective successors in title or duties, authority and function. The Company&#146;s Chief Financial
Officer shall serve as Chair of the Committee and may appoint additional members to such Committee, in his sole discretion. Each of the members of the Committee may from time to time designate an alternate who shall have full power to act in his/her
absence or inability to act. Members of the Committee may participate in the benefits under the Plan provided they are otherwise eligible to do so. Except as otherwise provided by the Board of Directors, no member of the Committee shall receive any
compensation for his/her services as such. No bond or other security shall be required of any member of the Committee in such capacity in any jurisdiction. In the absence of the Chairman of the Committee, the alternate designated by the Chairman
shall preside at the meetings of the Committee. The Committee shall serve as the plan administrator within the meaning of Section&nbsp;3(16)(A) of ERISA. </P>
 <p STYLE="margin-top:0pt;margin-bottom:0pt ; font-size:8pt">&nbsp;</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">2 </P>

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<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>4
<FILENAME>d916057dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-5.1</TITLE>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right"><B>Exhibit 5.1 </B></P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<P STYLE="margin-top:0pt;margin-bottom:0pt" ALIGN="center">


<IMG SRC="g916057g0425152626641.jpg" ALT="LOGO">
 </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">April&nbsp;28, 2020 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ONEOK, Inc. </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">100 West Fifth Street </P>
<P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Tulsa, Oklahoma 74103 </P> <P STYLE="font-size:12pt;margin-top:0pt;margin-bottom:0pt">&nbsp;</P>
<TABLE STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" BORDER="0" CELLPADDING="0" CELLSPACING="0" WIDTH="100%">
<TR style = "page-break-inside:avoid">
<TD WIDTH="4%">&nbsp;</TD>
<TD WIDTH="5%" VALIGN="top" ALIGN="left">Re:</TD>
<TD ALIGN="left" VALIGN="top"> <P STYLE=" margin-top:0pt ; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman; " ALIGN="left">Registration Statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> </P></TD></TR></TABLE>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Ladies and Gentlemen: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We have acted as special
legal counsel to ONEOK, Inc., an Oklahoma corporation (the &#147;<B><I>Company</I></B>&#148;), in connection with the registration statement on Form <FONT STYLE="white-space:nowrap">S-8</FONT> (the &#147;<B><I>Registration Statement</I></B>&#148;)
under the Securities Act of 1933, as amended (the &#147;<B><I>Act</I></B>&#148;), covering an additional 10,000,000 shares of the common stock of the Company, par value $0.01 per share (the &#147;<B><I>Shares</I></B>&#148;), under the ONEOK, Inc.
401(k) Plan (the &#147;<B><I>Plan</I></B>&#148;). This opinion is being furnished to you as a supporting document in connection with the Registration Statement. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">For purposes of this opinion, we have examined the following documents: </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(a)&nbsp;&nbsp;&nbsp;&nbsp;the Registration Statement; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(b)&nbsp;&nbsp;&nbsp;&nbsp;the Plan; </P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(c)&nbsp;&nbsp;&nbsp;&nbsp;the corporate actions taken by the Board of Directors of the Company in connection with the Registration Statement
and related matters; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(d)&nbsp;&nbsp;&nbsp;&nbsp;the Amended and Restated Certificate of Incorporation of the Company, as amended, and the
related certificate of correction; </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(e)&nbsp;&nbsp;&nbsp;&nbsp;the Amended and Restated <FONT STYLE="white-space:nowrap">By-laws</FONT> of
the Company; and </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">(f)&nbsp;&nbsp;&nbsp;&nbsp;an executed copy of the Secretary&#146;s Certificate of the Company dated April&nbsp;28, 2020.
</P> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">In our examination of the aforesaid documents, we have assumed the genuineness of all signatures, the legal capacity of all natural
persons, the authenticity and completeness of all documents submitted to us as original documents, and the conformity to original documents of all documents submitted to us as copies thereof. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Based on the foregoing and subject to the qualifications, assumptions and limitations set forth herein, we are of the opinion that the Shares
have been duly authorized and, when issued and delivered in accordance with the Plan upon receipt of requisite consideration therefor as provided therein, will be validly issued, fully paid and <FONT STYLE="white-space:nowrap">non-assessable.</FONT>
</P>
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<TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0" STYLE="BORDER-COLLAPSE:COLLAPSE; font-family:Times New Roman; font-size:10pt" ALIGN="center">


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<IMG SRC="g916057g0425152626890.jpg" ALT="LOGO">
</P></TD>
<TD VALIGN="bottom">&nbsp;</TD>
<TD VALIGN="middle"> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">ONEOK, Inc.</P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">April&nbsp;28, 2020</P>
<P STYLE="margin-top:0pt; margin-bottom:1pt; font-size:10pt; font-family:Times New Roman">Page 2</P></TD></TR>
</TABLE> <P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Each of the matters set forth in this letter is as of the date hereof, and we undertake no, and hereby
disclaim any, obligation to advise you of any change in any of the matters set forth herein or in any matters upon which the opinions and views set forth in this letter are based. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Our opinions expressed above are limited to the laws of the State of Oklahoma. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">We hereby consent to the filing of this opinion as Exhibit 5.1 to the Registration Statement. In giving this consent, we do not thereby admit
that we are within the category of persons whose consent is required under Section&nbsp;7 of the Act or the rules and regulations of the Securities and Exchange Commission promulgated thereunder. </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:55%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">Very truly yours, </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:55%; text-indent:-2%; font-size:10pt; font-family:Times New Roman">/s/ GableGotwals </P>
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<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>5
<FILENAME>d916057dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
<HTML><HEAD>
<TITLE>EX-23.1</TITLE>
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<Center><DIV STYLE="width:8.5in" align="left">
 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="right">Exhibit 23.1 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">We hereby consent to the incorporation by reference in the Registration Statement on <FONT STYLE="white-space:nowrap">Form&nbsp;S-8&nbsp;of</FONT> ONEOK, Inc.
of our report dated February&nbsp;25, 2020 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in ONEOK, Inc.&#146;s Annual Report on
<FONT STYLE="white-space:nowrap">Form&nbsp;10-K&nbsp;for</FONT> the year ended December&nbsp;31, 2019. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">/s/ PricewaterhouseCoopers LLP </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">Tulsa, Oklahoma </P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman">April&nbsp;28, 2020 </P>
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