<SEC-DOCUMENT>0001213900-23-095712.txt : 20231214
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<ACCEPTANCE-DATETIME>20231214161343
ACCESSION NUMBER:		0001213900-23-095712
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20231213
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20231214
DATE AS OF CHANGE:		20231214

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13643
		FILM NUMBER:		231487220

	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>
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">UNITED STATES<br />
SECURITIES AND EXCHANGE COMMISSION</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Washington, D.C. 20549</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>FORM <span id="xdx_90B_edei--DocumentType_c20231213__20231213_zWOZCc6ws4H1"><ix:nonNumeric contextRef="AsOf2023-12-13" name="dei:DocumentType">8-K</ix:nonNumeric></span></b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">CURRENT REPORT</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Pursuant to Section 13 or 15(d)</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">of the Securities Exchange Act of 1934</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Date of Report (date of earliest event reported):
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Exact name of registrant as specified in its charter)</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Zip Code)</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>&#160;</b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>Not Applicable</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">(Former name or former address, if changed since
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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.75pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: -0.75pt">Check the appropriate box below if the Form 8-K
filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20.85pt; text-indent: -0.3in">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20.85pt; text-indent: -0.3in">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 20.85pt; text-indent: -0.3in">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">Securities registered pursuant to Section
12(b) of the Act:</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">&#160;</p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Indicate by check mark whether the registrant is an emerging growth
company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange
Act of 1934 (&#167;240.12b-2 of this chapter).</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-indent: 0pt">Emerging growth company <span style="font-family: Times New Roman, Times, Serif"><span id="xdx_90A_edei--EntityEmergingGrowthCompany_c20231213__20231213_zIrclXFs4nHe"><ix:nonNumeric contextRef="AsOf2023-12-13" format="ixt:booleanfalse" name="dei:EntityEmergingGrowthCompany">&#9744;</ix:nonNumeric></span></span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 26.25pt; text-indent: -27pt">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">If an emerging growth company, indicate by check mark if the registrant
has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant
to Section 13(a) of the Exchange Act. <span style="font-family: Times New Roman, Times, Serif">&#9744;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b></b></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>&#160;</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Introductory Note</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="background-color: white">On September 25, 2023, Otter
Merger Sub, LLC (&#8220;Merger Sub&#8221;), a Delaware limited liability company and wholly owned, direct subsidiary of ONEOK, Inc.,
an Oklahoma corporation (together with its subsidiaries, collectively, &#8220;ONEOK&#8221;), completed its merger (the &#8220;Merger&#8221;)
with and into Magellan Midstream Partners, L.P., a Delaware limited partnership (&#8220;Magellan&#8221;), as a result of which Magellan
became a wholly owned, direct subsidiary of ONEOK. The Merger was effected pursuant to the Agreement and Plan of Merger, dated May 14,
2023, by and among ONEOK, Merger Sub and Magellan.</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="background-color: white">&#160;</span></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Item 1.01 Entry into a Material Definitive Agreement.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><i>&#160;</i></b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b><i>Supplemental Indentures</i></b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><span style="background-color: white">Following the Merger, on December
13, 2023, ONEOK, </span>ONEOK Partners, L.P., a Delaware limited partnership (&#8220;ONEOK Partners&#8221;), ONEOK Partners Intermediate
Limited Partnership, a Delaware limited partnership (&#8220;Intermediate Partnership&#8221;), Magellan, and U.S. Bank Trust Company, National
Association, as trustee (the &#8220;Trustee&#8221;), entered into (i) a supplemental indenture to the Indenture, dated as of April 19,
2007 (as supplemented, the &#8220;2007 Indenture&#8221;), by and among Magellan, the guarantors party thereto and the Trustee, and (ii)
a supplemental indenture to the Indenture, dated as of August 11, 2010 (as supplemented, and together with the 2007 Indenture, the &#8220;Indentures&#8221;),
by and among Magellan, the guarantors party thereto and the Trustee, pursuant to which (a) ONEOK assumed the obligations of Magellan under
the Indentures and Magellan was released from its obligations and (b) Magellan provided a guarantee of the currently outstanding notes
under the Indentures. The foregoing description of the supplemental indentures is only a summary and is subject to, and entirely qualified
by reference to, the full text of the supplemental indentures, copies of which are attached hereto as Exhibits 4.1 and 4.2 to this Current
Report on Form 8-K and which are incorporated by reference herein.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>Item 9.01. Financial Statements and Exhibits.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>&#160;</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>(d) Exhibits.</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><b>&#160;</b></p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="vertical-align: bottom">
    <td style="border-bottom: black 1.5pt solid; width: 9%">
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Exhibit</p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Number</p></td>
    <td style="width: 1%">&#160;</td>
    <td style="border-bottom: black 1.5pt solid; width: 90%">Description</td></tr>
  <tr style="vertical-align: top">
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td></tr>
  <tr style="vertical-align: top; background-color: rgb(204,238,255)">
    <td>4.1</td>
    <td>&#160;</td>
    <td><a href="ea190028ex4-1_oneokinc.htm">Third Supplemental Indenture, dated as of December 13, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P. and U.S. Bank Trust Company, National Association, as trustee.</a></td></tr>
  <tr style="vertical-align: top; background-color: White">
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td></tr>
  <tr style="vertical-align: top; background-color: rgb(204,238,255)">
    <td>4.2</td>
    <td>&#160;</td>
    <td><a href="ea190028ex4-2_oneokinc.htm">Thirteenth Supplemental Indenture, dated as of December 13, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P. and U.S. Bank Trust Company, National Association, as trustee.</a></td></tr>
  <tr style="vertical-align: top; background-color: White">
    <td>&#160;</td>
    <td>&#160;</td>
    <td>&#160;</td></tr>
  <tr style="vertical-align: top; background-color: rgb(204,238,255)">
    <td>104</td>
    <td>&#160;</td>
    <td>Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document (contained in Exhibit 101).</td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></p>

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<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><b>SIGNATURES</b></p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">Pursuant to the requirements of the Securities Exchange Act of 1934,
as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</p>

<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<table cellspacing="0" cellpadding="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <tr style="vertical-align: top">
    <td>&#160;</td>
    <td colspan="2"><b>ONEOK, INC.</b></td></tr>
  <tr style="vertical-align: top">
    <td style="width: 60%">&#160;</td>
    <td style="width: 5%">&#160;</td>
    <td style="width: 35%">&#160;</td></tr>
  <tr style="vertical-align: top">
    <td>Date: December 14, 2023</td>
    <td>By:</td>
    <td style="border-bottom: black 1.5pt solid">/s/ Walter S. Hulse III</td></tr>
  <tr style="vertical-align: top">
    <td>&#160;</td>
    <td>Name:&#160; </td>
    <td>Walter S. Hulse III</td></tr>
  <tr style="vertical-align: top">
    <td>&#160;</td>
    <td>Title:</td>
    <td>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Chief Financial Officer, Treasurer and</p>
    <p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Executive Vice President, Investor Relations and Corporate Development</p></td></tr>
  </table>
<p style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&#160;</p>

<p style="margin: 0">&#160;</p>

<p style="text-align: center; margin-top: 0; margin-bottom: 0">2</p>

<p style="margin: 0"></p>

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<TYPE>EX-4.1
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<FILENAME>ea190028ex4-1_oneokinc.htm
<DESCRIPTION>THIRD SUPPLEMENTAL INDENTURE, DATED AS OF DECEMBER 13, 2023, BY AND AMONG ONEOK, INC., ONEOK PARTNERS, L.P., ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, MAGELLAN MIDSTREAM PARTNERS, L.P. AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS TRUSTEE
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Exhibit
4.1</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B><I>Execution Version</I></B></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>THIRD
SUPPLEMENTAL INDENTURE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>THIRD
SUPPLEMENTAL INDENTURE</B> (this &ldquo;<B><I>Supplemental Indenture</I></B>&rdquo;), dated as of&nbsp;December 13, 2023, among&nbsp;Magellan
Midstream Partners, L.P., a Delaware limited partnership (the &ldquo;<B><I>Partnership</I></B>&rdquo; and the &ldquo;<B><I>New Guarantor</I></B>&rdquo;),
ONEOK, Inc., an Oklahoma corporation (&ldquo;<B><I>ONEOK</I></B>&rdquo;), ONEOK Partners, L.P., a Delaware limited partnership (&ldquo;<B><I>ONEOK
Partners</I></B>&rdquo;), and ONEOK Partners Intermediate Limited Partnership, a Delaware limited partnership (&ldquo;<B><I>Intermediate
Partners</I></B>&rdquo; and, together with ONEOK and ONEOK Partners, the &ldquo;<B><I>Existing Guarantors</I></B>,&rdquo; and together
with the New Guarantor, the &ldquo;<B><I>Guarantors</I></B>&rdquo;), and U.S. Bank Trust Company, National Association (as successor
in interest to U.S. Bank National Association), as trustee under the indenture referred to below (the &ldquo;<B><I>Trustee</I></B>&rdquo;).</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>W
I T N E S S E T H:</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
the Partnership has previously executed and delivered to the Trustee an indenture, dated as of April 19, 2007 (the&nbsp;<B><I>&ldquo;Original
Indenture</I></B>&rdquo;), as supplemented by the First Supplemental Indenture, dated as of April 19, 2007, and Second Supplemental Indenture,
dated as of September 25, 2023 (collectively with the Original Indenture, the &ldquo;<B><I>Indenture</I></B>&rdquo;), related to the
Partnership&rsquo;s outstanding 6.400% Senior Notes due 2037 (the &ldquo;<B><I>Notes</I></B>&rdquo;);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
on September 25, 2023, ONEOK acquired all of the outstanding common units representing limited partner interests in the Partnership and
the Partnership retained its corporate form as wholly-owned subsidiary of ONEOK thereafter (the &ldquo;<B><I>Merger Transaction</I></B>&rdquo;);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
following the Merger Transaction, each of the Existing Guarantors became a guarantor of, and provided a guarantee for, the Notes, and
the Partnership became a guarantor of, and provided a guarantee for certain of the outstanding debt securities of ONEOK and ONEOK Partners;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
pursuant to the Distribution Agreement, dated December 13, 2023, by and between ONEOK and the Partnership (the &ldquo;<B><I>Distribution
Agreement</I></B>&rdquo;), the Partnership distributed substantially all of the assets of the Partnership to ONEOK (the &ldquo;<B><I>Distribution</I></B>&rdquo;);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
in connection with the Distribution, ONEOK desires to assume the obligations of the Partnership pursuant to Section 10.01 of the Original
Indenture and the Debt Securities (as defined in the Original Indenture) according to their tenor;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
in connection with transactions contemplated by the Distribution Agreement, the New Guarantor desires to become a guarantor of, and provide
a guarantee of, the currently outstanding securities, the titles of the series and the current outstanding principal amounts thereof
being set forth on <U>Schedule A</U> hereto (collectively, the &ldquo;<B><I>Currently Outstanding Securities</I></B>&rdquo;);</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
Section&nbsp;9.01(a) of the Original Indenture provides that the Partnership and the Trustee may from time to time and at any time, without
the consent of Holders, enter into a supplemental indenture to evidence the succession pursuant to Article X and the assumption by the
Successor Partnership (as defined in Section 10.01 of the Original Indenture) of the covenants, agreements and obligations of the Partnership
under the Indenture and the Debt Securities;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
pursuant to Section 9.01(a) and Section 10.01 of the Original Indenture, the parties hereto desire to enter into this Supplemental Indenture
to evidence the assumption by ONEOK of all the payment obligations of the Partnership under the Indenture;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
all acts and requirements necessary to make this Supplemental Indenture a legal, valid and binding obligation of ONEOK have been done;
and</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>WHEREAS</B>,
ONEOK desires to assume the obligations of the Partnership and become primary obligor of the Currently Outstanding Securities and all
other obligations of the Partnership under the Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>NOW,
THEREFORE</B>, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged,
the parties hereto mutually covenant and agree for the equal and ratable benefit of the holders of the Notes as follows:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; text-transform: uppercase"><B>Article
I</B></FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR>
<B>RELATION TO INDENTURE; DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
1.01<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Relation to Indenture</U>.&nbsp;With respect to
the Currently Outstanding Securities, this Supplemental Indenture constitutes an integral part of the Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
1.02<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Definitions</U>. Capitalized terms used herein
without definition shall have the meanings assigned to them in the Original Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
1.03<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>General References</U>. For all purposes of this
Supplemental Indenture, except as otherwise herein expressly provided or unless the context otherwise requires: (a)&nbsp;the terms and
expressions used herein shall have the same meanings as corresponding terms and expressions used in the Original Indenture; and (b)&nbsp;the
words &ldquo;herein,&rdquo; &ldquo;hereof&rdquo; and &ldquo;hereby&rdquo; and other words of similar import used in this Supplemental
Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; text-transform: uppercase"><B>Article
II</B></FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR>
<B>ASSUMPTIONS AND AGREEMENTS</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
2.01<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Assumption of Obligations</U>.&nbsp;ONEOK hereby
agrees, as of the date hereof, to assume, to be bound by and to be liable as a primary obligor with respect to, any and all payment obligations,
including without limitation, the due and punctual payment of principal of (and premium, if any) and interest on the Currently Outstanding
Securities of the Partnership under the Indenture on the terms and subject to the conditions set forth in the Indenture and all other
obligations of the Partnership under the Indenture, including the observance of every covenant applicable to the Partnership under the
Indenture.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; text-transform: uppercase"><B>Article
III</B></FONT><B><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>AGREEMENT
TO GUARANTEE</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.01<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Unconditional Guarantee</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)<FONT STYLE="font-size: 10pt">&nbsp;
</FONT> For value received, subject to <U>Section&nbsp;3.04</U> hereof, the New Guarantor, as of the date hereof, hereby fully, irrevocably,
unconditionally and absolutely guarantees to the Holders of each series of Currently Outstanding Securities and to the Trustee the due
and punctual payment of the principal of, and premium, if any, and interest on such Currently Outstanding Securities, and all other amounts
due and payable under the Indenture and such Currently Outstanding Securities by ONEOK to the Trustee or such Holders (including, without
limitation, all costs and expenses (including reasonable legal fees and disbursements of its agents and counsel) incurred by the Trustee
or such Holders in connection with the enforcement of the Indenture and the Guarantee) (collectively, the &ldquo;<B><I>Indenture Obligations</I></B>&rdquo;),
when and as such amounts shall become due and payable, whether at the Stated Maturity, upon redemption or by declaration of acceleration
or otherwise, according to the terms of such Currently Outstanding Securities and the Indenture. The guarantee by the New Guarantor set
forth in this <U>ARTICLE III</U> is referred to herein as the &ldquo;<B><I>Guarantee</I></B>.&rdquo; Without limiting the generality
of the foregoing, the New Guarantor&rsquo;s liability shall extend to all amounts that constitute part of the Indenture Obligations and
would be owed by the ONEOK to the Trustee or such Holders under the Indenture and such Currently Outstanding Securities but for the fact
that they are unenforceable, reduced, limited, impaired, suspended or not allowable due to the existence of a bankruptcy, reorganization
or similar proceeding involving ONEOK.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)<FONT STYLE="font-size: 10pt">&nbsp;
</FONT>Failing payment when due of any amount guaranteed pursuant to the Guarantee, for whatever reason, the New Guarantor will be obligated
(to the fullest extent permitted by applicable law) to pay the same immediately to the Trustee, without set-off or counterclaim or other
reduction whatsoever (whether for taxes, withholding or otherwise). The Guarantee hereunder is intended to be a general, unsecured, senior
obligation of the New Guarantor and will rank&nbsp;<I>pari passu</I>&nbsp;in right of payment with all unsecured indebtedness of the
New Guarantor that is not, by its terms, expressly subordinated in right of payment to the Guarantee of the New Guarantor. The New Guarantor
hereby agrees that, to the fullest extent permitted by applicable law, subject to <U>Section&nbsp;3.04</U> hereof, its obligations hereunder
shall be full, irrevocable, unconditional and absolute, irrespective of the validity, regularity or enforceability of such Currently
Outstanding Securities, the Guarantee or the Indenture, the absence of any action to enforce the same, any waiver or consent by any such
Holder with respect to any provisions hereof or thereof, the recovery of any judgment against ONEOK, any action to enforce the same or
any other circumstance which might otherwise constitute a legal or equitable discharge or defense of the New Guarantor. The New Guarantor
hereby agrees that in the event of a default in payment of any Indenture Obligations, whether at the Stated Maturity, upon redemption
or by declaration of acceleration or otherwise, legal proceedings may be instituted by the Trustee on behalf of the Holders or, subject
to Section&nbsp;6.04 of the Indenture, by such Holders, on the terms and conditions set forth in the Indenture, directly against the
New Guarantor to enforce the Guarantee without first proceeding against ONEOK.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(c)<FONT STYLE="font-size: 10pt">&nbsp; </FONT>To
the fullest extent permitted by applicable law, subject to <U>Section&nbsp;3.04</U> hereof, the obligations of the New Guarantor
under this <U>ARTICLE III</U> shall be as aforesaid full, irrevocable, unconditional and absolute and shall not be impaired,
modified, discharged, released or limited by any occurrence or condition whatsoever, including, without limitation, (i)&nbsp;any
compromise, settlement, release, waiver, renewal, extension, indulgence or modification of, or any change in, any of the obligations
and liabilities of ONEOK or the New Guarantor contained in any of such Currently Outstanding Securities or the Indenture,
(ii)&nbsp;any impairment, modification, release or limitation of the liability of ONEOK, the New Guarantor or any of their estates
in bankruptcy, or any remedy for the enforcement thereof, resulting from the operation of any present or future provision of any
applicable Bankruptcy Law, as amended, or other statute or from the decision of any court, (iii)&nbsp;the assertion or exercise by
the Trustee or any such Holder of any rights or remedies under any of such Currently Outstanding Securities or the Indenture or
their delay in or failure to assert or exercise any such rights or remedies, (iv)&nbsp;the assignment or the purported assignment of
any property as security for any of such Currently Outstanding Securities, including all or any part of the rights of ONEOK or the
New Guarantor under the Indenture, (v)&nbsp;the extension of the time for payment by ONEOK or the New Guarantor of any payments or
other sums or any part thereof owing or payable under any of the terms and provisions of any of such Currently Outstanding
Securities or the Indenture or of the time for performance by ONEOK or the New Guarantor of any other obligations under or arising
out of any such terms and provisions or the extension or the renewal of any thereof, (vi)&nbsp;the modification or amendment
(whether material or otherwise) of any duty, agreement or obligation of ONEOK or the New Guarantor set forth in the Indenture,
(vii)&nbsp;the voluntary or involuntary liquidation, dissolution, sale or other disposition of all or substantially all of the
assets, marshaling of assets and liabilities, receivership, insolvency, bankruptcy, assignment for the benefit of creditors,
reorganization, arrangement, composition or readjustment, rehabilitation or relief of, or other similar proceeding affecting, ONEOK
or the New Guarantor or any of their respective assets, or the disaffirmance of any of such Currently Outstanding Securities, the
Guarantee or the Indenture in any such proceeding, (viii)&nbsp;the release or discharge of ONEOK or the New Guarantor from the
performance or observance of any agreement, covenant, term or condition contained in any of such instruments by operation of law,
(ix)&nbsp;the unenforceability of any of such Currently Outstanding Securities, the Guarantee or the Indenture, (x)&nbsp;any change
in the name, business, capital structure, corporate existence, or ownership of ONEOK or the New Guarantor, or (xi)&nbsp;any other
circumstance which might otherwise constitute a defense available to, or a legal or equitable discharge of, a surety of the New
Guarantor.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(d)<FONT STYLE="font-size: 10pt">&nbsp;
</FONT>To the fullest extent permitted by applicable law, the New Guarantor hereby (i)&nbsp;waives diligence, presentment, demand of
payment, notice of acceptance, filing of claims with a court in the event of the merger, insolvency or bankruptcy of ONEOK or the New
Guarantor, and all demands and notices whatsoever, (ii)&nbsp;acknowledges that any agreement, instrument or document evidencing the Guarantee
may be transferred and that the benefit of its obligations hereunder shall extend to each holder of any agreement, instrument or document
evidencing the Guarantee without notice to them and (iii)&nbsp;covenants that the Guarantee will not be discharged except by complete
performance of the Guarantee. To the fullest extent permitted by applicable law, the New Guarantor further agrees that if at any time
all or any part of any payment theretofore applied by any Person to the Guarantee is, or must be, rescinded or returned for any reason
whatsoever, including without limitation, the insolvency, bankruptcy or reorganization of the New Guarantor, the Guarantee shall, to
the extent that such payment is or must be rescinded or returned, be deemed to have continued in existence notwithstanding such application,
and the Guarantee shall continue to be effective or be reinstated, as the case may be, as though such application had not been made.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(e)<FONT STYLE="font-size: 10pt">&nbsp; </FONT>The
New Guarantor shall be subrogated to all rights of the Holders and the Trustee against ONEOK in respect of any amounts paid by the
New Guarantor pursuant to the provisions of the Indenture;&nbsp;<U>provided</U>,&nbsp;<U>however</U>, that the New Guarantor shall
not be entitled to enforce or to receive any payments arising out of, or based upon, such right of subrogation with respect to any
of such Currently Outstanding Securities until all of such Currently Outstanding Securities and the Guarantee shall have been
indefeasibly paid in full or discharged.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(f)<FONT STYLE="font-size: 10pt">&nbsp;
</FONT>To the fullest extent permitted by applicable law, no failure to exercise and no delay in exercising, on the part of the Trustee
or the Holders, any right, power, privilege or remedy under this <U>ARTICLE III</U> and the Guarantee shall operate as a waiver thereof,
nor shall any single or partial exercise of any rights, power, privilege or remedy preclude any other or further exercise thereof, or
the exercise of any other rights, powers, privileges or remedies. The rights and remedies herein provided for are cumulative and not
exclusive of any rights or remedies provided in law or equity. Nothing contained in this <U>ARTICLE III</U> shall limit the right of
the Trustee or the Holders to take any action to accelerate the maturity of such Currently Outstanding Securities pursuant to Article&nbsp;VI
of the Indenture or to pursue any rights or remedies under the Indenture or under applicable law.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.02<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Limitation on Guarantor Liability</U>.&nbsp;The
New Guarantor and the Trustee hereby confirm that it is the intention of all such parties that the Guarantee of the New Guarantor not
constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent
Transfer Act or any similar federal or state law to the extent applicable to the Guarantee. To effectuate the foregoing intention, the
Trustee and the New Guarantor hereby irrevocably agree that the obligations of the New Guarantor will be limited to the maximum amount
that will, after giving effect to such maximum amount and all other contingent and fixed liabilities of the New Guarantor that are relevant
under such laws, and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf
of the New Guarantor in respect of the obligations of the New Guarantor under this <U>ARTICLE III</U>, result in the obligations of the
New Guarantor under the Guarantee not constituting a fraudulent transfer or conveyance.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.03<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>No Requirement to Endorse Notation of Guarantee</U>.&nbsp;The
New Guarantor hereby agrees that its execution and delivery of this Supplemental Indenture and the provisions set forth in this <U>ARTICLE
III</U> shall evidence the Guarantee without the need for notation on any Currently Outstanding Securities.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.04<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Release of Guarantees</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(a)<FONT STYLE="font-size: 10pt">&nbsp; </FONT>Notwithstanding
anything to the contrary in this <U>ARTICLE III</U>, if the New Guarantor (i)&nbsp;shall cease to be a Subsidiary of ONEOK or
(ii)&nbsp;shall no longer be (x)&nbsp;an obligor on, or issuer of, any capital markets debt securities or (y)&nbsp;a guarantor of
any capital markets debt securities issued by ONEOK or the other Guarantors, in each case other than the Currently Outstanding
Securities or any other series of capital market debt securities of ONEOK outstanding on, and for which the New Guarantor is giving
a guarantee, the date hereof, then if no Default or Event of Default shall have occurred and be continuing, the New Guarantor, upon
giving notice to the Trustee to the foregoing effect, shall be deemed to be released from all of its obligations under the
Indenture, and the Guarantee shall be of no further force or effect with respect to the New Guarantor. Following the receipt by the
Trustee of any such notice, ONEOK shall cause the Indenture to be amended and supplemented as provided in Section&nbsp;9.01 of the
Indenture; <U>provided</U>, <U>however</U>, that the failure to so amend the Indenture shall not affect the validity of the release
and termination of the Guarantee with respect to the New Guarantor.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in"><FONT STYLE="font-family: Times New Roman, Times, Serif">(b)<FONT STYLE="font-size: 10pt">&nbsp;
</FONT>In addition, upon (i)&nbsp;the exercise of the legal defeasance or covenant defeasance option or the satisfaction and discharge
of the Indenture as provided in ARTICLE XI of the Indenture with respect to a series of Currently Outstanding Securities, or (ii)&nbsp;a
series of Currently Outstanding Securities ceasing to be Outstanding, the New Guarantor shall be deemed to be released from all its obligations
under the Indenture with respect to such series of Currently Outstanding Securities and the Guarantee of such series of Currently Outstanding
Securities shall be of no further force or effect.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.05<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Benefits Acknowledged</U>.&nbsp;The New Guarantor
acknowledges that it shall receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and from
the Guarantee under this Supplemental Indenture.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
3.06 <U>Existing Guarantors and the Partnership</U>. Following the Merger Transaction, each of the Existing Guarantors became a guarantor
of, and provided a guarantee for, the Notes, and the Partnership became a guarantor of, and provided a guarantee for certain of the outstanding
debt securities of ONEOK and ONEOK Partners. The Existing Guarantors and the Partnership hereby affirm that nothing herein provided shall
limit or affect their guarantees under the terms thereof as currently in full force and effect.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="font-family: Times New Roman, Times, Serif; text-transform: uppercase"><B>Article
IV</B></FONT><FONT STYLE="font-family: Times New Roman, Times, Serif"><BR>
<B>MISCELLANEOUS</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.01<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Notices</U>.&nbsp;Notices to the New Guarantor
and the Existing Guarantors shall be made in accordance with Section&nbsp;13.03 of the Indenture. The address for the New Guarantor and
the Existing Guarantors is 100 West Fifth Street, Tulsa, Oklahoma 74103, or such other address as the New Guarantor or the Existing Guarantors,
as applicable, may designate from time to time by notice to the Holders and the Company. The address for the Corporate Trust Office of
the Trustee shall be located at 2 Concourse Parkway, Suite 800, Atlanta, Georgia 30328-5588 Attention: Corporate Trust Department, or
such other address as the Trustee may designate from time to time by notice to the Holders and the Company.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.02<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>No Recourse Against Others</U>.&nbsp;No director,
officer, employee, partner (including, for greater certainty, any general partner of any general partnership who is an individual person),
incorporator, manager, stockholder or member of ONEOK, the Partnership, ONEOK Partners or Intermediate Partners, as such, will have any
liability for any obligations of ONEOK, the Partnership, ONEOK Partners or Intermediate Partners or any other guarantors under the Currently
Outstanding Securities or the Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation.
The waiver and release are part of the consideration for the assumption of the Partnership&rsquo;s obligations under the Indenture and
the Currently Outstanding Securities.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.03<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Certain Trustee Matters</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">The
recitals contained herein shall be taken as the statements of ONEOK, the Partnership, ONEOK Partners and Intermediate Partners, and the
Trustee assumes no responsibility for their correctness. The Trustee shall have no obligation and has not independently verified the
terms of the Merger Transaction or the Distributions under the Distribution Agreement, or the completeness of such data and information,
and shall rely solely upon the Officers&rsquo; Certificate and Opinion of Counsel of even date herewith, to be delivered to the Trustee
in connection with this Supplemental Indenture, as to satisfaction of the conditions under Section 10.01 of the Original Indenture and
any amendments or supplements thereto.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">The
Trustee makes no representations as to the validity or sufficiency of this Supplemental Indenture or the proper authorization or the
due execution hereof or thereof by ONEOK, the Partnership, ONEOK Partners or Intermediate Partners.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Except
as expressly set forth herein, nothing in this Supplemental Indenture shall alter the duties, rights, privileges, immunities or obligations
of the Trustee set forth in the Indenture and the Trustee shall not be liable with respect to the actions taken hereunder, including
the Merger Transaction and the Distribution Agreement, and shall be indemnified and held harmless in accordance with the terms thereof
as fully and with like effect as if set forth herein in full.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.04<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Continued Effect</U>.&nbsp;Except as expressly
supplemented and amended by this Supplemental Indenture, the Indenture shall continue in full force and effect in accordance with the
provisions thereof, and the Indenture (as supplemented and amended, including by this Supplemental Indenture) is in all respects hereby
ratified and confirmed. This Supplemental Indenture and all its provisions shall be deemed a part of the Indenture in the manner and
to the extent herein and therein provided.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.05<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Governing Law</U>.&nbsp;This Supplemental Indenture
and the Currently Outstanding Securities shall be governed by and construed in accordance with the laws of the State of New York. This
Supplemental Indenture and the Currently Outstanding Securities are subject to the provisions of the Trust Indenture Act that are required
to be part of this Supplemental Indenture and the Currently Outstanding Securities and shall, to the extent applicable, be governed by
such provisions.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">Section
4.06<FONT STYLE="font-size: 10pt">&nbsp; </FONT><U>Counterparts</U>.&nbsp;This instrument may be
executed in any number of counterparts, each of which, when delivered, shall be deemed to be an original, but all such counterparts shall
together constitute but one and the same instrument.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.75in"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">(<I>Signature
Page Follows</I>)</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"></FONT></P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>IN
WITNESS WHEREOF</B>, the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.5in; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>ONEOK, INC.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 35%">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Pierce H. Norton II</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Pierce H. Norton II&nbsp;</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">President and Chief Executive Officer</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>ONEOK PARTNERS, L.P.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">By:</P></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ONEOK Partners GP, L.L.C., its General Partner</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>ONEOK PARTNERS INTERMEDIATE LIMITED
PARTNERSHIP</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">By:</P></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">ONEOK ILP GP, L.L.C., its General Partner</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>MAGELLAN MIDSTREAM PARTNERS, L.P.</B></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">By:</P></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Magellan GP, LLC, its General Partner</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">/s/ Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Name:&nbsp;</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Walter S. Hulse III</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Title:</FONT></TD>
    <TD><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</FONT></TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Signature
Page to Third Supplemental Indenture)</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="font-family: Times New Roman, Times, Serif; vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-family: Times New Roman, Times, Serif"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>TRUSTEE:</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>U.S.
    BANK TRUST COMPANY, NATIONAL ASSOCIATION,</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>as
    Trustee</B></FONT></P>
    <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P></TD></TR>
  <TR STYLE="font-family: Times New Roman, Times, Serif">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 5%"><FONT STYLE="font-family: Times New Roman, Times, Serif">By:</FONT></TD>
    <TD STYLE="border-bottom: Black 1.5pt solid; font: 10pt Times New Roman, Times, Serif; vertical-align: top; width: 35%"><FONT STYLE="font-family: Times New Roman, Times, Serif">/s/
Gregory M. Jackson</FONT></TD></TR>
  <TR STYLE="font-family: Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">Name:</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif">Gregory
    M. Jackson</FONT></TD></TR>
  <TR STYLE="font-family: Times New Roman, Times, Serif">
    <TD>&nbsp;</TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top"><FONT STYLE="font-family: Times New Roman, Times, Serif">Title:</FONT></TD>
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom"><FONT STYLE="font-family: Times New Roman, Times, Serif">Vice
    President</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white"></P>




<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><I>(Signature
Page to Third Supplemental Indenture)</I></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B>Schedule
A</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; width: 100%"><TR STYLE="vertical-align: top; text-align: justify">
<TD STYLE="width: 0.25in; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif">1.</FONT></TD><TD STYLE="text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif">$250,000,000
6.400% Senior Notes due 2037</FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><FONT STYLE="font-family: Times New Roman, Times, Serif">&nbsp;</FONT></P>

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<DOCUMENT>
<TYPE>EX-4.2
<SEQUENCE>3
<FILENAME>ea190028ex4-2_oneokinc.htm
<DESCRIPTION>THIRTEENTH SUPPLEMENTAL INDENTURE, DATED AS OF DECEMBER 13, 2023, BY AND AMONG ONEOK, INC., ONEOK PARTNERS, L.P., ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP, MAGELLAN MIDSTREAM PARTNERS, L.P
<TEXT>
<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<BODY>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; background-color: white"><B>Exhibit 4.2</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><B><I>Execution Version</I></B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><B>THIRTEENTH SUPPLEMENTAL
INDENTURE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; text-indent: 0.25in; background-color: white"><B>THIRTEENTH
SUPPLEMENTAL INDENTURE</B> (this &ldquo;<B><I>Supplemental Indenture</I></B>&rdquo;), dated as of&nbsp;December 13, 2023, among&nbsp;Magellan
Midstream Partners, L.P., a Delaware limited partnership (the &ldquo;<B><I>Partnership</I></B>&rdquo; and the &ldquo;<B><I>New Guarantor</I></B>&rdquo;),
ONEOK, Inc., an Oklahoma corporation (&ldquo;<B><I>ONEOK</I></B>&rdquo;), ONEOK Partners, L.P., a Delaware limited partnership (&ldquo;<B><I>ONEOK
Partners</I></B>&rdquo;), and ONEOK Partners Intermediate Limited Partnership, a Delaware limited partnership (&ldquo;<B><I>Intermediate
Partners</I></B>&rdquo; and, together with ONEOK and ONEOK Partners, the &ldquo;<B><I>Existing Guarantors</I></B>,&rdquo; and together
with the New Guarantor, the &ldquo;<B><I>Guarantors</I></B>&rdquo;), and U.S. Bank Trust Company, National Association (as successor in
interest to U.S. Bank National Association), as trustee under the indenture referred to below (the &ldquo;<B><I>Trustee</I></B>&rdquo;).</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white"><B>W I T N E S S E T H:</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
the Partnership has previously executed and delivered to the Trustee an indenture, dated as of August&nbsp;11, 2010 (the&nbsp;<B><I>&ldquo;Original
Indenture</I></B>&rdquo;), as supplemented by the Second Supplemental Indenture, dated as of November&nbsp;9, 2012, as supplemented by
the Third Supplemental Indenture, dated as of October 10, 2013, as supplemented by the Fourth Supplemental Indenture, dated as of March
4, 2015, as supplemented by the Fifth Supplemental Indenture, dated as of March 4, 2015, as supplemented by the Sixth Supplemental Indenture,
dated as of February 29, 2016, as supplemented by the Seventh Supplemental Indenture, dated as of September 13, 2016, as supplemented
by the Eighth Supplemental Indenture, dated as of October 3, 2017, as supplemented by the Ninth Supplemental Indenture, dated as of January
18, 2019, as supplemented by the Tenth Supplemental Indenture, dated as of August 19, 2019, as supplemented by the Eleventh Supplemental
Indenture, dated as of May 20, 2020, and as supplemented by the Twelfth Supplemental Indenture, dated as of September 25, 2023 (collectively
with the Original Indenture, the &ldquo;<B><I>Indenture</I></B>&rdquo;), in each case, between the Partnership and the Trustee, related
to the issuance of the Partnership&rsquo;s outstanding 3.20% Senior Notes due 2025, the Partnership&rsquo;s 5.00% Senior Notes due 2026,
the Partnership&rsquo;s 3.250% Senior Notes due 2030, the Partnership&rsquo;s 4.20% Senior Notes due 2042, the Partnership&rsquo;s 5.15%
Senior Notes due 2043, the Partnership&rsquo;s 4.20% Senior Notes due 2045, the Partnership&rsquo;s 4.25% Senior Notes due 2046, the Partnership&rsquo;s
4.200% Senior Notes due 2047, the Partnership&rsquo;s 4.850% Senior Notes due 2049 and the Partnership&rsquo;s 3.950% Senior Notes due
2050 (the &ldquo;<B><I>Notes</I></B>&rdquo;);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
on September 25, 2023, ONEOK acquired all of the outstanding common units representing limited partner interests in the Partnership and
the Partnership retained its corporate form as wholly-owned subsidiary of ONEOK thereafter (the &ldquo;<B><I>Merger Transaction</I></B>&rdquo;);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
following the Merger Transaction, each of the Existing Guarantors became a guarantor of, and provided a guarantee for, the Notes, and
the Partnership became a guarantor of, and provided a guarantee for certain of the outstanding debt securities of ONEOK and ONEOK Partners;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
pursuant to the Distribution Agreement, dated December 13, 2023, by and between ONEOK and the Partnership (the &ldquo;<B><I>Distribution
Agreement</I></B>&rdquo;), the Partnership distributed substantially all of the assets of the Partnership to ONEOK (the &ldquo;<B><I>Distribution</I></B>&rdquo;);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; background-color: white"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
in connection with the Distribution, ONEOK desires to assume the obligations of the Partnership pursuant to Section 10.01 of the Original
Indenture and the Debt Securities (as defined in the Original Indenture) according to their tenor;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
in connection with transactions contemplated by the Distribution Agreement, the New Guarantor desires to become a guarantor of, and provide
a guarantee of, the currently outstanding securities, the titles of the series and the current outstanding principal amounts thereof being
set forth on <U>Schedule A</U> hereto (collectively, the &ldquo;<B><I>Currently Outstanding Securities</I></B>&rdquo;);</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
Section&nbsp;9.01(a) of the Original Indenture provides that the Partnership and the Trustee may from time to time and at any time, without
the consent of Holders, enter into a supplemental indenture to evidence the succession pursuant to Article X and the assumption by the
Successor Partnership (as defined in Section 10.01 of the Original Indenture) of the covenants, agreements and obligations of the Partnership
under the Indenture and the Debt Securities;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
pursuant to Section 9.01(a) and Section 10.01 of the Original Indenture, the parties hereto desire to enter into this Supplemental Indenture
to evidence the assumption by ONEOK of all the payment obligations of the Partnership under the Indenture;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
all acts and requirements necessary to make this Supplemental Indenture a legal, valid and binding obligation of ONEOK have been done;
and</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>WHEREAS</B>,
ONEOK desires to assume the obligations of the Partnership and become primary obligor of the Currently Outstanding Securities and all
other obligations of the Partnership under the Indenture.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 0.25in; background-color: white"><B>NOW,
THEREFORE</B>, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged,
the parties hereto mutually covenant and agree for the equal and ratable benefit of the holders of the Notes as follows:</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in; background-color: white">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="text-transform: uppercase"><B>Article
I</B></FONT><BR>
<B>RELATION TO INDENTURE; DEFINITIONS AND OTHER PROVISIONS OF<BR>
 GENERAL APPLICATION</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 1.01 <U>Relation
to Indenture</U>.&nbsp;With respect to the Currently Outstanding Securities, this Supplemental Indenture constitutes an integral part
of the Indenture.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 1.02 <U>Definitions</U>.
Capitalized terms used herein without definition shall have the meanings assigned to them in the Original Indenture.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 1.03 <U>General
References</U>. For all purposes of this Supplemental Indenture, except as otherwise herein expressly provided or unless the context
otherwise requires: (a)&nbsp;the terms and expressions used herein shall have the same meanings as corresponding terms and
expressions used in the Original Indenture; and (b)&nbsp;the words &ldquo;herein,&rdquo; &ldquo;hereof&rdquo; and
&ldquo;hereby&rdquo; and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a
whole and not to any particular section hereof.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="text-transform: uppercase"><B>Article
II</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>ASSUMPTIONS AND AGREEMENTS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 2.01 <U>Assumption of
Obligations</U>.&nbsp;ONEOK hereby agrees, as of the date hereof, to assume, to be bound by and to be liable as a primary obligor
with respect to, any and all payment obligations, including without limitation, the due and punctual payment of principal of (and
premium, if any) and interest on the Currently Outstanding Securities of the Partnership under the Indenture on the terms and
subject to the conditions set forth in the Indenture and all other obligations of the Partnership under the Indenture, including the
observance of every covenant applicable to the Partnership under the Indenture.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="text-transform: uppercase"><B>Article
III</B></FONT><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><B>AGREEMENT TO GUARANTEE</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify; text-indent: 0.5in">Section 3.01 <U>Unconditional
Guarantee</U>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 0.5in; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(a)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>For value received, subject to <U>Section&nbsp;3.04</U> hereof, the New Guarantor, as of the date hereof, hereby fully, irrevocably,
unconditionally and absolutely guarantees to the Holders of each series of Currently Outstanding Securities and to the Trustee the due
and punctual payment of the principal of, and premium, if any, and interest on such Currently Outstanding Securities, and all other amounts
due and payable under the Indenture and such Currently Outstanding Securities by ONEOK to the Trustee or such Holders (including, without
limitation, all costs and expenses (including reasonable legal fees and disbursements of its agents and counsel) incurred by the Trustee
or such Holders in connection with the enforcement of the Indenture and the Guarantee) (collectively, the &ldquo;<B><I>Indenture Obligations</I></B>&rdquo;),
when and as such amounts shall become due and payable, whether at the Stated Maturity, upon redemption or by declaration of acceleration
or otherwise, according to the terms of such Currently Outstanding Securities and the Indenture. The guarantee by the New Guarantor set
forth in this <U>ARTICLE III</U> is referred to herein as the &ldquo;<B><I>Guarantee</I></B>.&rdquo; Without limiting the generality of
the foregoing, the New Guarantor&rsquo;s liability shall extend to all amounts that constitute part of the Indenture Obligations and would
be owed by the ONEOK to the Trustee or such Holders under the Indenture and such Currently Outstanding Securities but for the fact that
they are unenforceable, reduced, limited, impaired, suspended or not allowable due to the existence of a bankruptcy, reorganization or
similar proceeding involving ONEOK.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(b) Failing payment when
due of any amount guaranteed pursuant to the Guarantee, for whatever reason, the New Guarantor will be obligated (to the fullest
extent permitted by applicable law) to pay the same immediately to the Trustee, without set-off or counterclaim or other reduction
whatsoever (whether for taxes, withholding or otherwise). The Guarantee hereunder is intended to be a general, unsecured, senior
obligation of the New Guarantor and will rank&nbsp;<I>pari passu</I>&nbsp;in right of payment with all unsecured indebtedness of the
New Guarantor that is not, by its terms, expressly subordinated in right of payment to the Guarantee of the New Guarantor. The New
Guarantor hereby agrees that, to the fullest extent permitted by applicable law, subject to <U>Section&nbsp;3.04</U> hereof, its
obligations hereunder shall be full, irrevocable, unconditional and absolute, irrespective of the validity, regularity or
enforceability of such Currently Outstanding Securities, the Guarantee or the Indenture, the absence of any action to enforce the
same, any waiver or consent by any such Holder with respect to any provisions hereof or thereof, the recovery of any judgment
against ONEOK, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable
discharge or defense of the New Guarantor. The New Guarantor hereby agrees that in the event of a default in payment of any
Indenture Obligations, whether at the Stated Maturity, upon redemption or by declaration of acceleration or otherwise, legal
proceedings may be instituted by the Trustee on behalf of the Holders or, subject to Section&nbsp;6.04 of the Indenture, by such
Holders, on the terms and conditions set forth in the Indenture, directly against the New Guarantor to enforce the Guarantee without
first proceeding against ONEOK.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(c)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>To the fullest extent permitted by applicable law, subject to <U>Section&nbsp;3.04</U> hereof, the obligations of the New Guarantor
under this <U>ARTICLE III</U> shall be as aforesaid full, irrevocable, unconditional and absolute and shall not be impaired, modified,
discharged, released or limited by any occurrence or condition whatsoever, including, without limitation, (i)&nbsp;any compromise, settlement,
release, waiver, renewal, extension, indulgence or modification of, or any change in, any of the obligations and liabilities of ONEOK
or the New Guarantor contained in any of such Currently Outstanding Securities or the Indenture, (ii)&nbsp;any impairment, modification,
release or limitation of the liability of ONEOK, the New Guarantor or any of their estates in bankruptcy, or any remedy for the enforcement
thereof, resulting from the operation of any present or future provision of any applicable Bankruptcy Law, as amended, or other statute
or from the decision of any court, (iii)&nbsp;the assertion or exercise by the Trustee or any such Holder of any rights or remedies under
any of such Currently Outstanding Securities or the Indenture or their delay in or failure to assert or exercise any such rights or remedies,
(iv)&nbsp;the assignment or the purported assignment of any property as security for any of such Currently Outstanding Securities, including
all or any part of the rights of ONEOK or the New Guarantor under the Indenture, (v)&nbsp;the extension of the time for payment by ONEOK
or the New Guarantor of any payments or other sums or any part thereof owing or payable under any of the terms and provisions of any of
such Currently Outstanding Securities or the Indenture or of the time for performance by ONEOK or the New Guarantor of any other obligations
under or arising out of any such terms and provisions or the extension or the renewal of any thereof, (vi)&nbsp;the modification or amendment
(whether material or otherwise) of any duty, agreement or obligation of ONEOK or the New Guarantor set forth in the Indenture, (vii)&nbsp;the
voluntary or involuntary liquidation, dissolution, sale or other disposition of all or substantially all of the assets, marshaling of
assets and liabilities, receivership, insolvency, bankruptcy, assignment for the benefit of creditors, reorganization, arrangement, composition
or readjustment, rehabilitation or relief of, or other similar proceeding affecting, ONEOK or the New Guarantor or any of their respective
assets, or the disaffirmance of any of such Currently Outstanding Securities, the Guarantee or the Indenture in any such proceeding, (viii)&nbsp;the
release or discharge of ONEOK or the New Guarantor from the performance or observance of any agreement, covenant, term or condition contained
in any of such instruments by operation of law, (ix)&nbsp;the unenforceability of any of such Currently Outstanding Securities, the Guarantee
or the Indenture, (x)&nbsp;any change in the name, business, capital structure, corporate existence, or ownership of ONEOK or the New
Guarantor, or (xi)&nbsp;any other circumstance which might otherwise constitute a defense available to, or a legal or equitable discharge
of, a surety of the New Guarantor.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(d) To the fullest
extent permitted by applicable law, the New Guarantor hereby (i)&nbsp;waives diligence, presentment, demand of payment, notice of
acceptance, filing of claims with a court in the event of the merger, insolvency or bankruptcy of ONEOK or the New Guarantor, and
all demands and notices whatsoever, (ii)&nbsp;acknowledges that any agreement, instrument or document evidencing the Guarantee may
be transferred and that the benefit of its obligations hereunder shall extend to each holder of any agreement, instrument or
document evidencing the Guarantee without notice to them and (iii)&nbsp;covenants that the Guarantee will not be discharged except
by complete performance of the Guarantee. To the fullest extent permitted by applicable law, the New Guarantor further agrees that
if at any time all or any part of any payment theretofore applied by any Person to the Guarantee is, or must be, rescinded or
returned for any reason whatsoever, including without limitation, the insolvency, bankruptcy or reorganization of the New Guarantor,
the Guarantee shall, to the extent that such payment is or must be rescinded or returned, be deemed to have continued in existence
notwithstanding such application, and the Guarantee shall continue to be effective or be reinstated, as the case may be, as though
such application had not been made.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(e)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>The New Guarantor shall be subrogated to all rights of the Holders and the Trustee against ONEOK in respect of any amounts paid
by the New Guarantor pursuant to the provisions of the Indenture;&nbsp;<U>provided</U>,&nbsp;<U>however</U>, that the New Guarantor shall
not be entitled to enforce or to receive any payments arising out of, or based upon, such right of subrogation with respect to any of
such Currently Outstanding Securities until all of such Currently Outstanding Securities and the Guarantee shall have been indefeasibly
paid in full or discharged.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(f)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>To the fullest extent permitted by applicable law, no failure to exercise and no delay in exercising, on the part of the Trustee
or the Holders, any right, power, privilege or remedy under this <U>ARTICLE III</U> and the Guarantee shall operate as a waiver thereof,
nor shall any single or partial exercise of any rights, power, privilege or remedy preclude any other or further exercise thereof, or
the exercise of any other rights, powers, privileges or remedies. The rights and remedies herein provided for are cumulative and not exclusive
of any rights or remedies provided in law or equity. Nothing contained in this <U>ARTICLE III</U> shall limit the right of the Trustee
or the Holders to take any action to accelerate the maturity of such Currently Outstanding Securities pursuant to Article&nbsp;VI of the
Indenture or to pursue any rights or remedies under the Indenture or under applicable law.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 3.02 <U>Limitation on
Guarantor Liability</U>.&nbsp;The New Guarantor and the Trustee hereby confirm that it is the intention of all such parties that the
Guarantee of the New Guarantor not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform
Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to the
Guarantee. To effectuate the foregoing intention, the Trustee and the New Guarantor hereby irrevocably agree that the obligations of
the New Guarantor will be limited to the maximum amount that will, after giving effect to such maximum amount and all other
contingent and fixed liabilities of the New Guarantor that are relevant under such laws, and after giving effect to any collections
from, rights to receive contribution from or payments made by or on behalf of the New Guarantor in respect of the obligations of the
New Guarantor under this <U>ARTICLE III</U>, result in the obligations of the New Guarantor under the Guarantee not constituting a
fraudulent transfer or conveyance.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 3.03 <U>No
Requirement to Endorse Notation of Guarantee</U>.&nbsp;The New Guarantor hereby agrees that its execution and delivery of this
Supplemental Indenture and the provisions set forth in this <U>ARTICLE III</U> shall evidence the Guarantee without the need for
notation on any Currently Outstanding Securities.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">Section 3.04 <U>Release of
Guarantees</U>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">(a)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>Notwithstanding anything to the contrary in this <U>ARTICLE III</U>, if the New Guarantor (i)&nbsp;shall cease to be a Subsidiary
of ONEOK or (ii)&nbsp;shall no longer be (x)&nbsp;an obligor on, or issuer of, any capital markets debt securities or (y)&nbsp;a guarantor
of any capital markets debt securities issued by ONEOK or the other Guarantors, in each case other than the Currently Outstanding Securities
or any other series of capital market debt securities of ONEOK outstanding on, and for which the New Guarantor is giving a guarantee,
the date hereof, then if no Default or Event of Default shall have occurred and be continuing, the New Guarantor, upon giving notice to
the Trustee to the foregoing effect, shall be deemed to be released from all of its obligations under the Indenture, and the Guarantee
shall be of no further force or effect with respect to the New Guarantor. Following the receipt by the Trustee of any such notice, ONEOK
shall cause the Indenture to be amended and supplemented as provided in Section&nbsp;9.01 of the Indenture; <U>provided</U>, <U>however</U>,
that the failure to so amend the Indenture shall not affect the validity of the release and termination of the Guarantee with respect
to the New Guarantor.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1.5in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 112.5pt">(b)<FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">
</FONT>In addition, upon (i)&nbsp;the exercise of the legal defeasance or covenant defeasance option or the satisfaction and discharge
of the Indenture as provided in ARTICLE XI of the Indenture with respect to a series of Currently Outstanding Securities, or (ii)&nbsp;a
series of Currently Outstanding Securities ceasing to be Outstanding, the New Guarantor shall be deemed to be released from all its obligations
under the Indenture with respect to such series of Currently Outstanding Securities and the Guarantee of such series of Currently Outstanding
Securities shall be of no further force or effect.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 112.5pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 3.05 <U>Benefits
Acknowledged</U>.&nbsp;The New Guarantor acknowledges that it shall receive direct and indirect benefits from the financing
arrangements contemplated by the Indenture and from the Guarantee under this Supplemental Indenture.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 3.06 <U>Existing
Guarantors and the Partnership</U>. Following the Merger Transaction, each of the Existing Guarantors became a guarantor of, and
provided a guarantee for, the Notes, and the Partnership became a guarantor of, and provided a guarantee for certain of the
outstanding debt securities of ONEOK and ONEOK Partners. The Existing Guarantors and the Partnership hereby affirm that nothing
herein provided shall limit or affect their guarantees under the terms thereof as currently in full force and effect.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><FONT STYLE="text-transform: uppercase"><B>Article
IV</B></FONT><BR>
<B>MISCELLANEOUS</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 4.01 <U>Notices</U>.&nbsp;Notices
to the New Guarantor and the Existing Guarantors shall be made in accordance with Section&nbsp;13.03 of the Indenture. The address
for the New Guarantor and the Existing Guarantors is 100 West Fifth Street, Tulsa, Oklahoma 74103, or such other address as the New
Guarantor or the Existing Guarantors, as applicable, may designate from time to time by notice to the Holders and the Company. The
address for the Corporate Trust Office of the Trustee shall be located at 2 Concourse Parkway, Suite 800, Atlanta, Georgia
30328-5588 Attention: Corporate Trust Department, or such other address as the Trustee may designate from time to time by notice to
the Holders and the Company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify"></P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 4.02 <U>No Recourse
Against Others</U>.&nbsp;No director, officer, employee, partner (including, for greater certainty, any general partner of any
general partnership who is an individual person), incorporator, manager, stockholder or member of ONEOK, the Partnership, ONEOK
Partners or Intermediate Partners, as such, will have any liability for any obligations of ONEOK, the Partnership, ONEOK Partners or
Intermediate Partners or any other guarantors under the Currently Outstanding Securities or the Indenture or for any claim based on,
in respect of, or by reason of, such obligations or their creation. The waiver and release are part of the consideration for the
assumption of the Partnership&rsquo;s obligations under the Indenture and the Currently Outstanding Securities.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">Section 4.03 <U>Certain
Trustee Matters</U>.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">The recitals contained herein
shall be taken as the statements of ONEOK, the Partnership, ONEOK Partners and Intermediate Partners, and the Trustee assumes no responsibility
for their correctness. The Trustee shall have no obligation and has not independently verified the terms of the Merger Transaction or
the Distributions under the Distribution Agreement, or the completeness of such data and information, and shall rely solely upon the Officers&rsquo;
Certificate and Opinion of Counsel of even date herewith, to be delivered to the Trustee in connection with this Supplemental Indenture,
as to satisfaction of the conditions under Section 10.01 of the Original Indenture and any amendments or supplements thereto.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">The Trustee makes no representations
as to the validity or sufficiency of this Supplemental Indenture or the proper authorization or the due execution hereof or thereof by
ONEOK, the Partnership, ONEOK Partners or Intermediate Partners.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Except as expressly set forth
herein, nothing in this Supplemental Indenture shall alter the duties, rights, privileges, immunities or obligations of the Trustee set
forth in the Indenture and the Trustee shall not be liable with respect to the actions taken hereunder, including the Merger Transaction
and the Distribution Agreement, and shall be indemnified and held harmless in accordance with the terms thereof as fully and with like
effect as if set forth herein in full.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 4.04 <U>Continued
Effect</U>.&nbsp;Except as expressly supplemented and amended by this Supplemental Indenture, the Indenture shall continue in full
force and effect in accordance with the provisions thereof, and the Indenture (as supplemented and amended, including by this
Supplemental Indenture) is in all respects hereby ratified and confirmed. This Supplemental Indenture and all its provisions shall
be deemed a part of the Indenture in the manner and to the extent herein and therein provided.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 4.05 <U>Governing
Law</U>.&nbsp;This Supplemental Indenture and the Currently Outstanding Securities shall be governed by and construed in accordance
with the laws of the State of New York. This Supplemental Indenture and the Currently Outstanding Securities are subject to the
provisions of the Trust Indenture Act that are required to be part of this Supplemental Indenture and the Currently Outstanding
Securities and shall, to the extent applicable, be governed by such provisions.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: left; text-indent: 1in">Section 4.06 <U>Counterparts</U>.&nbsp;This
instrument may be executed in any number of counterparts, each of which, when delivered, shall be deemed to be an original, but all
such counterparts shall together constitute but one and the same instrument.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 1in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in; background-color: white">(<I>Signature
Page Follows</I>)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0.25in; background-color: white">&nbsp;</P>

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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; background-color: white">&nbsp;</P>

<P STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in; background-color: white"><B>IN WITNESS WHEREOF</B>,
the parties hereto have caused this Supplemental Indenture to be duly executed as of the date first above written.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0.25in; background-color: white">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt"><B>ONEOK, INC.</B></TD></TR>
  <TR>
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 35%">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">By:</TD>
    <TD STYLE="border-bottom: black 1.5pt solid; vertical-align: top; font-size: 10pt">/s/ Pierce H. Norton II</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Name:</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Pierce H. Norton II</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">President and Chief Executive Officer</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt"><B>ONEOK PARTNERS, L.P.</B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>By: </TD>
    <TD STYLE="font-size: 10pt">ONEOK Partners GP, L.L.C., its General Partner</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">By:</TD>
    <TD STYLE="border-bottom: black 1.5pt solid; vertical-align: top; font-size: 10pt">/s/ Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Name:</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="text-align: left; vertical-align: bottom; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>ONEOK PARTNERS INTERMEDIATE LIMITED PARTNERSHIP</B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>By: </TD>
    <TD STYLE="font-size: 10pt">ONEOK ILP GP, L.L.C., its General Partner</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">By:</TD>
    <TD STYLE="border-bottom: black 1.5pt solid; vertical-align: top; font-size: 10pt">/s/ Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Name:</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="text-align: left; vertical-align: bottom; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt"><B>MAGELLAN MIDSTREAM PARTNERS, L.P.</B></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD COLSPAN="2" STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>By: </TD>
    <TD STYLE="font-size: 10pt">Magellan GP, LLC, its General Partner</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="font-size: 10pt">&nbsp;</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">By:</TD>
    <TD STYLE="border-bottom: black 1.5pt solid; vertical-align: top; font-size: 10pt">/s/ Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Name:&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Walter S. Hulse III</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="text-align: left; vertical-align: bottom; font-size: 10pt">Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><I>(Signature Page to Thirteenth
Supplemental Indenture)</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>

<!-- Field: Page; Sequence: 8 -->
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    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>TRUSTEE:</B></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD><B>&nbsp;</B></TD>
    <TD COLSPAN="2"><B>U.S. BANK TRUST COMPANY, <BR>
NATIONAL ASSOCIATION, <BR>
as Trustee</B></TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR>
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="vertical-align: top; width: 5%; font-size: 10pt">By:</TD>
    <TD STYLE="border-bottom: black 1.5pt solid; vertical-align: top; width: 35%; font-size: 10pt">/s/ Gregory M. Jackson</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Name:&nbsp;</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Gregory M. Jackson</TD></TR>
  <TR>
    <TD>&nbsp;</TD>
    <TD STYLE="vertical-align: top; font-size: 10pt">Title:</TD>
    <TD STYLE="vertical-align: bottom; font-size: 10pt">Vice President</TD></TR>
  </TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; background-color: white"><I>(Signature
Page to Thirteenth Supplemental Indenture)</I></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; background-color: white">&nbsp;</P>

<!-- Field: Page; Sequence: 9 -->
    <DIV STYLE="margin-top: 12pt; margin-bottom: 6pt; border-bottom: Black 1.5pt solid"><P STYLE="text-align: center; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P></DIV>
    <DIV STYLE="break-before: page; margin-top: 6pt; margin-bottom: 12pt"><P STYLE="margin: 0pt">&nbsp;</P></DIV>
    <!-- Field: /Page -->

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>Schedule A</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">1.</TD><TD>$250,000,000 3.20% Notes due 2025</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.</TD><TD>$650,000,000 5.00% Notes due 2026</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.</TD><TD>$500,000,000 3.25% Notes due 2030</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">4.</TD><TD>$250,000,000 4.20% Notes due 2042</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">5.</TD><TD>$550,000,000 5.15% Notes due 2043</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">6.</TD><TD>$250,000,000 4.20% Notes due 2045</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">7.</TD><TD>$500,000,000 4.25% Notes due 2046</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">8.</TD><TD>$500,000,000 4.20% Notes due 2047</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">9.</TD><TD>$500,000,000 4.85% Notes due 2049</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">10.</TD><TD>$800,000,000 3.95% Notes due 2050</TD></TR></TABLE>

<P STYLE="margin-top: 0pt; margin-bottom: 0pt; font: 10pt Times New Roman, Times, Serif">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"></P>


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<DOCUMENT>
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      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine1" xlink:label="dei_EntityAddressAddressLine1" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine1" xlink:to="dei_EntityAddressAddressLine1_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine1_lbl" xml:lang="en-US">Entity Address, Address Line One</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine2" xlink:label="dei_EntityAddressAddressLine2" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine2" xlink:to="dei_EntityAddressAddressLine2_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine2_lbl" xml:lang="en-US">Entity Address, Address Line Two</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressAddressLine3" xlink:label="dei_EntityAddressAddressLine3" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressAddressLine3" xlink:to="dei_EntityAddressAddressLine3_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressAddressLine3_lbl" xml:lang="en-US">Entity Address, Address Line Three</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCityOrTown" xlink:label="dei_EntityAddressCityOrTown" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCityOrTown_lbl" xml:lang="en-US">Entity Address, City or Town</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressStateOrProvince" xlink:label="dei_EntityAddressStateOrProvince" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressStateOrProvince" xlink:to="dei_EntityAddressStateOrProvince_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressStateOrProvince_lbl" xml:lang="en-US">Entity Address, State or Province</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressCountry" xlink:label="dei_EntityAddressCountry" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCountry" xlink:to="dei_EntityAddressCountry_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressCountry_lbl" xml:lang="en-US">Entity Address, Country</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityAddressPostalZipCode" xlink:label="dei_EntityAddressPostalZipCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressPostalZipCode" xlink:to="dei_EntityAddressPostalZipCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityAddressPostalZipCode_lbl" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CountryRegion" xlink:label="dei_CountryRegion" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CountryRegion" xlink:to="dei_CountryRegion_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CountryRegion_lbl" xml:lang="en-US">Country Region</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_CityAreaCode" xlink:label="dei_CityAreaCode" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CityAreaCode" xlink:to="dei_CityAreaCode_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_CityAreaCode_lbl" xml:lang="en-US">City Area Code</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LocalPhoneNumber" xlink:label="dei_LocalPhoneNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LocalPhoneNumber" xlink:to="dei_LocalPhoneNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_LocalPhoneNumber_lbl" xml:lang="en-US">Local Phone Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Extension" xlink:label="dei_Extension" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Extension" xlink:to="dei_Extension_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Extension_lbl" xml:lang="en-US">Extension</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_WrittenCommunications" xlink:label="dei_WrittenCommunications" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_WrittenCommunications" xlink:to="dei_WrittenCommunications_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_WrittenCommunications_lbl" xml:lang="en-US">Written Communications</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SolicitingMaterial" xlink:label="dei_SolicitingMaterial" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SolicitingMaterial" xlink:to="dei_SolicitingMaterial_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SolicitingMaterial_lbl" xml:lang="en-US">Soliciting Material</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementTenderOffer" xlink:label="dei_PreCommencementTenderOffer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementTenderOffer" xlink:to="dei_PreCommencementTenderOffer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_PreCommencementTenderOffer_lbl" xml:lang="en-US">Pre-commencement Tender Offer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_PreCommencementIssuerTenderOffer" xlink:label="dei_PreCommencementIssuerTenderOffer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_PreCommencementIssuerTenderOffer" xlink:to="dei_PreCommencementIssuerTenderOffer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_PreCommencementIssuerTenderOffer_lbl" xml:lang="en-US">Pre-commencement Issuer Tender Offer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12bTitle" xlink:label="dei_Security12bTitle" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12bTitle" xlink:to="dei_Security12bTitle_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12bTitle_lbl" xml:lang="en-US">Title of 12(b) Security</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_NoTradingSymbolFlag" xlink:label="dei_NoTradingSymbolFlag" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_NoTradingSymbolFlag" xlink:to="dei_NoTradingSymbolFlag_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_NoTradingSymbolFlag_lbl" xml:lang="en-US">No Trading Symbol Flag</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_TradingSymbol_lbl" xml:lang="en-US">Trading Symbol</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityExchangeName" xlink:label="dei_SecurityExchangeName" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityExchangeName" xlink:to="dei_SecurityExchangeName_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityExchangeName_lbl" xml:lang="en-US">Security Exchange Name</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_Security12gTitle" xlink:label="dei_Security12gTitle" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_Security12gTitle" xlink:to="dei_Security12gTitle_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_Security12gTitle_lbl" xml:lang="en-US">Title of 12(g) Security</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_SecurityReportingObligation" xlink:label="dei_SecurityReportingObligation" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_SecurityReportingObligation" xlink:to="dei_SecurityReportingObligation_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_SecurityReportingObligation_lbl" xml:lang="en-US">Security Reporting Obligation</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AnnualInformationForm" xlink:label="dei_AnnualInformationForm" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AnnualInformationForm" xlink:to="dei_AnnualInformationForm_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AnnualInformationForm_lbl" xml:lang="en-US">Annual Information Form</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_AuditedAnnualFinancialStatements" xlink:label="dei_AuditedAnnualFinancialStatements" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AuditedAnnualFinancialStatements" xlink:to="dei_AuditedAnnualFinancialStatements_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_AuditedAnnualFinancialStatements_lbl" xml:lang="en-US">Audited Annual Financial Statements</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityWellKnownSeasonedIssuer_lbl" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityVoluntaryFilers" xlink:label="dei_EntityVoluntaryFilers" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityVoluntaryFilers" xlink:to="dei_EntityVoluntaryFilers_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityVoluntaryFilers_lbl" xml:lang="en-US">Entity Voluntary Filers</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityCurrentReportingStatus" xlink:label="dei_EntityCurrentReportingStatus" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCurrentReportingStatus" xlink:to="dei_EntityCurrentReportingStatus_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCurrentReportingStatus_lbl" xml:lang="en-US">Entity Current Reporting Status</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityInteractiveDataCurrent" xlink:label="dei_EntityInteractiveDataCurrent" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityInteractiveDataCurrent" xlink:to="dei_EntityInteractiveDataCurrent_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xml:lang="en-US">Entity Interactive Data Current</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityFilerCategory" xlink:label="dei_EntityFilerCategory" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityFilerCategory_lbl" xml:lang="en-US">Entity Filer Category</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntitySmallBusiness" xlink:label="dei_EntitySmallBusiness" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntitySmallBusiness" xlink:to="dei_EntitySmallBusiness_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntitySmallBusiness_lbl" xml:lang="en-US">Entity Small Business</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityEmergingGrowthCompany" xlink:label="dei_EntityEmergingGrowthCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityEmergingGrowthCompany" xlink:to="dei_EntityEmergingGrowthCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xml:lang="en-US">Entity Emerging Growth Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityExTransitionPeriod" xlink:label="dei_EntityExTransitionPeriod" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityExTransitionPeriod" xlink:to="dei_EntityExTransitionPeriod_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityExTransitionPeriod_lbl" xml:lang="en-US">Elected Not To Use the Extended Transition Period</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentAccountingStandard" xlink:label="dei_DocumentAccountingStandard" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentAccountingStandard" xlink:to="dei_DocumentAccountingStandard_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentAccountingStandard_lbl" xml:lang="en-US">Document Accounting Standard</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_OtherReportingStandardItemNumber" xlink:label="dei_OtherReportingStandardItemNumber" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_OtherReportingStandardItemNumber" xlink:to="dei_OtherReportingStandardItemNumber_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_OtherReportingStandardItemNumber_lbl" xml:lang="en-US">Other Reporting Standard Item Number</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityShellCompany" xlink:label="dei_EntityShellCompany" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityShellCompany" xlink:to="dei_EntityShellCompany_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityShellCompany_lbl" xml:lang="en-US">Entity Shell Company</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityPublicFloat" xlink:label="dei_EntityPublicFloat" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityPublicFloat" xlink:to="dei_EntityPublicFloat_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityPublicFloat_lbl" xml:lang="en-US">Entity Public Float</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityBankruptcyProceedingsReportingCurrent_lbl" xml:lang="en-US">Entity Bankruptcy Proceedings, Reporting Current</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
      <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="dei_DocumentsIncorporatedByReferenceTextBlock_lbl" xml:lang="en-US">Documents Incorporated by Reference [Text Block]</link:label>
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<TYPE>EX-101.PRE
<SEQUENCE>7
<FILENAME>oke-20231213_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
<XBRL>
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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>8
<FILENAME>R1.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="include/report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<body>
<span style="display: none;">v3.23.3</span><table class="report" border="0" cellspacing="2" id="idm140439810615808">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Cover<br></strong></div></th>
<th class="th"><div>Dec. 13, 2023</div></th>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CoverAbstract', window );"><strong>Cover [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">8-K<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Dec. 13,  2023<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityFileNumber', window );">Entity File Number</a></td>
<td class="text">001-13643<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityRegistrantName', window );">Entity Registrant Name</a></td>
<td class="text">ONEOK, Inc.<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityCentralIndexKey', window );">Entity Central Index Key</a></td>
<td class="text">0001039684<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityTaxIdentificationNumber', window );">Entity Tax Identification Number</a></td>
<td class="text">73-1520922<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityIncorporationStateCountryCode', window );">Entity Incorporation, State or Country Code</a></td>
<td class="text">OK<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressAddressLine1', window );">Entity Address, Address Line One</a></td>
<td class="text">100 West Fifth Street<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressCityOrTown', window );">Entity Address, City or Town</a></td>
<td class="text">Tulsa<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressStateOrProvince', window );">Entity Address, State or Province</a></td>
<td class="text">OK<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityAddressPostalZipCode', window );">Entity Address, Postal Zip Code</a></td>
<td class="text">74103<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_CityAreaCode', window );">City Area Code</a></td>
<td class="text">918<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_LocalPhoneNumber', window );">Local Phone Number</a></td>
<td class="text">588-7000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_WrittenCommunications', window );">Written Communications</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SolicitingMaterial', window );">Soliciting Material</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementTenderOffer', window );">Pre-commencement Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_PreCommencementIssuerTenderOffer', window );">Pre-commencement Issuer Tender Offer</a></td>
<td class="text">false<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_Security12bTitle', window );">Title of 12(b) Security</a></td>
<td class="text">Common stock, par value of $0.01<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_TradingSymbol', window );">Trading Symbol</a></td>
<td class="text">OKE<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_SecurityExchangeName', window );">Security Exchange Name</a></td>
<td class="text">NYSE<span></span>
</td>
</tr>
<tr class="re">
<td class="pl" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="Show.showAR( this, 'defref_dei_EntityEmergingGrowthCompany', window );">Entity Emerging Growth Company</a></td>
<td class="text">false<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CityAreaCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Area code of city</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CityAreaCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CoverAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Cover page.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CoverAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period.  The format of the date is YYYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:dateItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentType">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressAddressLine1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Address Line 1 such as Attn, Building Name, Street Name</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressAddressLine1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressCityOrTown">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the City or Town</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressCityOrTown</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressPostalZipCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Code for the postal or zip code</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressPostalZipCode</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityAddressStateOrProvince">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the state or province.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityAddressStateOrProvince</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:stateOrProvinceItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityEmergingGrowthCompany">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFileNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFileNumber</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td>dei:fileNumberItemType</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityIncorporationStateCountryCode">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Two-character EDGAR code representing the state or country of incorporation.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityIncorporationStateCountryCode</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>dei:edgarStateCountryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityTaxIdentificationNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityTaxIdentificationNumber</td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LocalPhoneNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Local phone number for entity.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LocalPhoneNumber</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementIssuerTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 13e<br> -Subsection 4c<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementIssuerTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_PreCommencementTenderOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 14d<br> -Subsection 2b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_PreCommencementTenderOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_Security12bTitle">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Title of a 12(b) registered security.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection b<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_Security12bTitle</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:securityTitleItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SecurityExchangeName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Name of the Exchange on which a security is registered.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Number 240<br> -Section 12<br> -Subsection d1-1<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SecurityExchangeName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dei:edgarExchangeCodeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_SolicitingMaterial">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Exchange Act<br> -Section 14a<br> -Number 240<br> -Subsection 12<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_SolicitingMaterial</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_WrittenCommunications">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="Show.toggleNext( this );">- Definition</a><div><p>Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.</p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Securities Act<br> -Number 230<br> -Section 425<br></p></div>
<a href="javascript:void(0);" onclick="Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_WrittenCommunications</td>
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<td><strong> Balance Type:</strong></td>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
