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Item 9A. Controls and Procedures

2025-02-25 compared with 2024-02-27 · 404 added, 184 removed, 209 unchanged (74% of the section changed)

2 unchanged sentences

Our Chief Executive Officer (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer) have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) were effective as of the end of the period covered by this report.

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Management’s Report on Internal Control over Financial Reporting

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Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Based on our evaluation under that framework, our management concluded that our internal control over financial reporting was effective as of December 31, 2023.

Our evaluation of the effectiveness of internal control over financial reporting excludes the Magellan Acquisition.

Our Consolidated Statement of Income for the year ended December 31, 2023, includes approximately 6% of total revenue and our Consolidated Balance Sheet as of December 31, 2023, includes approximately 32% of total assets attributable to Magellan that was excluded from management’s assessment of the effectiveness of internal controls over financial reporting.

Based on our evaluation under that framework, our management concluded that our internal control over financial reporting was effective as of Dec.

Our evaluation of the effectiveness of internal control over financial reporting excludes the EnLink Controlling Interest Acquisition and the Medallion Acquisition.

Our Consolidated Statement of Income for the year ended Dec.

31, 2024, includes approximately 7% and 1% of total revenue attributable to EnLink and Medallion, respectively, and our Consolidated Balance Sheet as of Dec.

31, 2024, includes approximately 20% and 3% of total assets attributable to EnLink and Medallion, respectively, that were excluded from management’s assessment of the effectiveness of internal controls over financial reporting.

In accordance with guidance issued by the SEC, companies are allowed to exclude acquisitions from their assessment of internal control over financial reporting during the first year subsequent to the acquisition while integrating the acquired operations.

The effectiveness of our internal control over financial reporting as of December 31, 2023, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is included herein (Item 8).

The effectiveness of our internal control over financial reporting as of Dec.

31, 2024, has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is included herein (Item 8).

Changes in Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the quarter ended December 31, 2023, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

There have been no changes in our internal control over financial reporting during the quarter ended Dec.

31, 2024, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

OTHER INFORMATION

Not applicable.

During the three months ended Dec.

31, 2024, no director or officer of the Company adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangements,” as each term is defined in item 408(a) Regulation S-K.

DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

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Information concerning the code of ethics, or code of business conduct, is set forth in our 2025 definitive Proxy Statement and is incorporated herein by this reference.

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Corporate Governance

Information concerning our corporate governance is set forth in our 2025 definitive Proxy Statement and is incorporated herein by this reference.

Insider Trading Policy

We have adopted insider trading policies and procedures that govern the purchase, sale and other disposition of our securities by our directors, officers and employees that we believe are reasonably designed to promote compliance with insider trading laws, rules and regulations and the listing standards of the NYSE.

A copy of our Insider Trading Policy is filed with this Annual Report as Exhibit 19.

EXECUTIVE COMPENSATION

6 unchanged sentences

Equity Compensation Plan Information

The following table sets forth certain information concerning our equity compensation plans as of December 31, 2023:

The following table sets forth certain information concerning our equity compensation plans as of Dec.

Plan Category Number of Securities

4 unchanged sentences

Outstanding Options,

Warrants and Rights (3)

Number of Securities

Warrants and Rights (3) Number of Securities

Remaining Available For

8 unchanged sentences

Total 2,979,573 $ 100.40 4,695,916

(1) - Includes shares granted under our Employee Stock Purchase Plan, Employee Stock Award Program and restricted stock incentive unit awards and performance unit awards granted under our former Long-Term Incentive Plan, our former Equity Compensation Plan, our Equity Incentive Plan and the assumed former Magellan Midstream Partners, L.P.

Long-Term Incentive Plan.

For a brief description of the material features of these plans, see Note K of the Notes to Consolidated Financial Statements in this Annual Report.

(1) - Includes shares granted under our Employee Stock Purchase Plan, Employee Stock Award Program and restricted stock incentive unit awards and performance unit awards granted under our former Equity Compensation Plan, our Equity Incentive Plan and the assumed former Magellan Midstream Partners, L.P., Long-Term Incentive Plan.

For a brief description of the material features of these plans, see Note L of the Notes to Consolidated Financial Statements in this Annual Report.

(2) - Includes our NQDC Plan, Deferred Compensation Plan for Non-Employee Directors and our former Stock Compensation Plan for Non-Employee Directors.

For a brief description of the material features of these plans, see Notes K and L of the Notes to Consolidated Financial Statements in this Annual Report.

For a brief description of the material features of these plans, see Notes L and M of the Notes to Consolidated Financial Statements in this Annual Report.

(3) - There is no exercise price associated with restrictive stock incentive unit awards and performance unit awards.

4 unchanged sentences

Information on certain relationships and related transactions and director independence is set forth in our 2025 definitive Proxy Statement and is incorporated herein by this reference.

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PRINCIPAL ACCOUNTING FEES AND SERVICES

4 unchanged sentences

(b) Consolidated Statements of Income for the years ended

December 31, 2023, 2022 and 2021 62

31, 2024, 2023 and 2022 67

December 31, 2023, 2022 and 2021 63

(d) Consolidated Balance Sheets as of December 31, 2023 and 2022 64

31, 2024, 2023 and 2022 67

(d) Consolidated Balance Sheets as of Dec.

31, 2024 and 2023 68

(e) Consolidated Statements of Cash Flows for the years ended

December 31, 2023, 2022 and 2021 65

31, 2024, 2023 and 2022

(f) Consolidated Statements of Changes in Equity for the years ended

December 31, 2023, 2022 and 2021 66-67

31, 2024, 2023 and 2022 70

(g) Notes to Consolidated Financial Statements 71 - 113

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(incorporated by reference from Exhibit 2.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed May 15, 2023 (File No.

3.1 Amended and Restated Certificate of Incorporation of ONEOK, Inc., dated July 3, 2017, as amended (incorporated by reference from Exhibit 3.2 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2017, filed November 1, 2017 (File No.

2.1 Purchase Agreement, dated as of Aug.

28, 2024, by and among ONEOK, Inc., GIP III Stetson I, L.P., GIP III Stetson II, L.P.

and EnLink Midstream Manager, LLC (incorporated by reference from Exhibit 2.1 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

30, 2024 (File No.

2.2 Purchase and Sale Agreement, dated as of Aug.

28, 2024, by and among ONEOK, Inc., GIP III Trophy GP 2, LLC, GIP III Trophy Acquisition Partners, L.P.

and Medallion Management, L.P.

(incorporated by reference from Exhibit 2.2 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

30, 2024 (File No.

2.3 Agreement and Plan of Merger, d ate d as of No v.

24, 202 4 , by and among ONEOK, I nc., Elk Merger Sub I, L.L.C., Elk Merger Sub II, L.L.C., En Link Midstream LLC and EnLink Midstream Manager, LLC (incorporated by reference from Exhibit 2.1 to O NEOK Inc.

’ s Curre n t Report on Form 8-K , filed Nov.

25, 2024 (File No.

3 Amended and Restated Certificate of Incorporation of ONEOK, Inc., dated July 3, 2017, as amended (incorporated by reference from Exhibit 3.2 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended Sept .

30, 2017, filed Nov .

1, 2017 (File No.

3.1 Amended and Restated By-laws of ONEOK, Inc.

(incorporated by reference from Exhibit 3.1 to ONEOK Inc.’s Current Report on Form 8-K filed February 24, 2023 (File No.

(incorporated by reference from Exhibit 3.1 to ONEOK Inc.’s Current Report on Form 8-K filed Feb .

24, 2023 (File No.

3.2 Certificate of Designation for Convertible Preferred Stock of WAI, Inc.

(now ONEOK, Inc.) filed November 21, 2008 (incorporated by reference from Exhibit 3.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012, filed August 1, 2012 (File No.

(now ONEOK, Inc.) filed Nov .

21, 2008 (incorporated by reference from Exhibit 3.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012, filed Aug .

1, 2012 (File No.

3.3 Certificate of Designation for Series C Participating Preferred Stock of ONEOK, Inc.

filed November 21, 2008 (incorporated by reference from Exhibit No.

3.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012, filed August 1, 2012 (File No.

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21, 2008 (incorporated by reference from Exhibit No.

3.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2012, filed Aug .

1, 2012 (File No.

3.4 Certificate of Designation, Preferences and Rights of Series E Non-Voting Perpetual Preferred Stock of ONEOK, Inc.

filed April 20, 2017 (incorporated by reference from Exhibit No.

3.1 to ONEOK, Inc.’s Current Report on Form 8-K filed April 20, 2017 (File No.

4 Form of Common Stock Certificate (incorporated by reference from Exhibit 1 to ONEOK, Inc.’s Registration Statement on Form 8-A filed Nov.

21, 1997 (File No.

4.1 Second Supplemental Indenture, dated as of Sept.

25, 1998, between ONEOK, Inc.

and Chase Bank of Texas, as trustee, with respect to the 6.875% Debentures due 2028 (incorporated by reference from Exhibit 5(b) to ONEOK, Inc.’s Current Report on Form 8-K/A filed Oct.

2, 1998 (File No.

4.2 Fifth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and The Bank of New York Mellon Trust, as trustee (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K filed July 3, 2017 (File No.

4.2 Sixth Supplemental Indenture, dated as of September 25, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and The Bank of New York Mellon Trust, as trustee (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K filed September 25, 2023 (File No.

4.3 Form of Common Stock Certificate (incorporated by reference from Exhibit 1 to ONEOK, Inc.’s Registration Statement on Form 8-A filed November 21, 1997 (File No.

4.4 Indenture dated December 28, 2001, between ONEOK, Inc.

4.3 Sixth Supplemental Indenture, dated as of Sept .

25, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and The Bank of New York Mellon Trust, as trustee (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K filed Sept .

25, 2023 (File No.

4.4 Indenture, dated as of Dec.

28, 2001, between ONEOK, Inc.

and SunTrust Bank, as trustee (incorporated by reference from Exhibit 4.1 to Amendment No.

1 to ONEOK, Inc.’s Registration Statement on Form S-3 filed December 28, 2001 (File No.

4.5 Second Supplemental Indenture dated September 25, 1998, between ONEOK, Inc.

and Chase Bank of Texas, as trustee, with respect to the 6.875% Debentures due 2028 (incorporated by reference from Exhibit 5(b) to ONEOK, Inc.’s Current Report on Form 8-K/A filed October 2, 1998 (File No.

1 to ONEOK, Inc.’s Registration Statement on Form S-3 filed Dec.

28, 2001 (File No.

4.5 Third Supplemental Indenture, dated as of June 17, 2005, between ONEOK, Inc.

and SunTrust Bank, as trustee, with respect to the 6.00% Senior Notes due 2035 (incorporated by reference from Exhibit 4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed June 17, 2005 (File No.

4.6 Fourth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 6.00% Senior Notes due 2035 (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K filed July 3, 2017 (File No.

4.7 Fifth Supplemental Indenture, dated as of July 13, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 4.95% Senior Notes due 2047 (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K filed July 13, 2017 (File No.

4.8 Indenture, dated as of Jan.

26, 2012, among ONEOK, Inc.

Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed Jan.

26, 2012 (File No.

4.9 Third Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K filed July 3, 2017 (File No.

4.7 Fourteenth Supplemental Indenture, dated March 20, 2015, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 4.90% Senior Notes due 2025 (incorporated by reference to Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on March 20, 2015 (File No.

4.10 Fourth Supplemental Indenture, dated as of July 13, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

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4.10 Fifteenth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK Partners, L.P., ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee (incorporated by reference from Exhibit 4.1 to ONEOK, Partners, L.P.’s Current Report on Form 8-K filed July 3, 2017 (File No.

4.12 Sixteenth Supplemental Indenture, dated as of September 25, 2023, among ONEOK Partners, L.P., ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference from Exhibit 4.4 to ONEOK Inc.’s Current Report on Form 8-K, filed September 25, 2023 (File No.

4.13 Certificate of Designation, Preferences and Rights of Series E Non-Voting Perpetual Preferred Stock of ONEOK, Inc.

filed April 20, 2017 (incorporated by reference from Exhibit No.

3.1 to ONEOK, Inc.’s Current Report on Form 8-K filed April 20, 2017 (File No.

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4.14 Third Supplemental Indenture, dated June 17, 2005, between ONEOK, Inc.

and SunTrust Bank, as trustee, with respect to the 6.00% Senior Notes due 2035 (incorporated by reference from Exhibit 4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed June 17, 2005 (File No.

4.15 Fifth Supplemental Indenture, dated as of September 25, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K filed September 25, 2023 (File No.

4.16 Eleventh Supplemental Indenture, dated September 12, 2013, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 5.000% Senior Notes due 2023 (incorporated by reference to Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 12, 2013 (File No.

4.17 Twelfth Supplemental Indenture, dated September 12, 2013, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.200% Senior Notes due 2043 (incorporated by reference to Exhibit 4.4 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 12, 2013 (File No.

4.18 Indenture, dated September 25, 2006, between ONEOK Partners, L.P.

and Wells Fargo Bank, N.A., as trustee (incorporated by reference to Exhibit 4.1 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 26, 2006 (File No.

4.19 Third Supplemental Indenture, dated September 25, 2006, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.65% Senior Notes due 2036 (incorporated by reference to Exhibit 4.4 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 26, 2006 (File No.

4.20 Fourth Supplemental Indenture, dated September 28, 2007, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.85% Senior Notes due 2037 (incorporated by reference to Exhibit 4.2 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 28, 2007 (File No.

4.21 Ninth Supplemental Indenture, dated September 13, 2012, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 3.375% Senior Notes due 2022 (incorporated by reference from Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed September 13, 2012 (File No.

4.22 Seventh Supplemental Indenture, dated January 26, 2011, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.125% Senior Notes due 2041 (incorporated by reference from Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed January 26, 2011 (File No.

4.23 Indenture, dated January 26, 2012, among ONEOK, Inc.

Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed January 26, 2012 (File No.

4.24 First Supplemental Indenture, dated January 26, 2012, among ONEOK, Inc.

Bank National Association, as trustee, with respect to the 4.25% Senior Notes due 2022 (incorporated by reference to Exhibit 4.2 to ONEOK, Inc.’s Current Report on Form 8-K filed January 26, 2012 (File No.

4.25 Second Supplemental Indenture, dated August 21, 2015, between ONEOK, Inc.

Bank National Association, as trustee, with respect to the 7.50% Notes due 2023 (incorporated by reference to Exhibit 4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed August 21, 2015 (File No.

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4.26 Fourth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

4.12 Sixth Supplemental Indenture, dated as of July 2, 2018, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

7 unchanged sentences

4.2 to ONEOK, Inc.’s Current Report on Form 8-K filed March 13, 2019 (File No.

4.30 Ninth Supplemental Indenture, dated as of March 13, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.20% Senior Notes due 2048 (incorporated by reference from Exhibit No.

4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed March 13, 2019 (File No.

4.31 Tenth Supplemental Indenture, dated as of August 15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

4.15 Ninth Supplemental Indenture, dated March 13, 201 9 , among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 5.20 % Senior Notes due 20 48 (incorporated by reference from Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed March 13, 201 9 (File No.

4.16 Tenth Supplemental Indenture, dated as of Aug.

15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 2.75% Senior Notes due 2024 (incorporated by reference from Exhibit No.

4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed August 15, 2019 (File No.

4.32 Eleventh Supplemental Indenture, dated as of August 15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed Aug.

15, 2019 (File No.

4.17 Eleventh Supplemental Indenture, dated as of Aug.

15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 3.40% Senior Notes due 2029 (incorporated by reference from Exhibit No.

4.2 to ONEOK, Inc.’s Current Report on Form 8-K filed August 15, 2019 (File No.

4.33 Twelfth Supplemental Indenture, dated as of August 15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

4.2 to ONEOK, Inc.’s Current Report on Form 8-K filed Aug.

15, 2019 (File No.

4.18 Twelfth Supplemental Indenture, dated as of Aug.

15, 2019, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 4.45% Senior Notes due 2049 (incorporated by reference from Exhibit No.

4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed August 15, 2019 (File No.

4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed Aug.

15, 2019 (File No.

4.19 Thirteenth Supplemental Indenture, dated as of March 10, 2020, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

7 unchanged sentences

4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed March 20, 2020 (File No.

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4.22 Sixteenth Supplemental Indenture, dated as of May 7, 2020, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

7 unchanged sentences

4.3 to ONEOK, Inc.’s Current Report on Form 8-K filed May 7, 2020 (File No.

4.40 Nineteenth Supplemental Indenture, dated as of November 18, 2022, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

4.25 Nineteenth Supplemental Indenture, dated as of Nov.

18, 2022, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank Trust Company, National Association (successor in interest to U.S.

Bank National Association), as trustee, with respect to the 6.100% Senior Notes due 2032 (incorporated by reference from Exhibit No.

4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed November 18, 2022 (File No.

4.41 Twentieth Supplemental Indenture, dated as of August 24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.550% Senior Notes due 2026 (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K, filed August 25, 2023 (File No.

4.42 Twenty-First Supplemental Indenture, dated as of August 24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.650% Senior Notes due 2028 (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K, filed August 25, 2023 (File No.

4.43 Twenty-Second Supplemental Indenture, dated as of August 24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.800% Senior Notes due 2030 (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K, filed August 25, 2023 (File No.

4.44 Twenty-Third Supplemental Indenture, dated as of August 24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 6.050% Senior Notes due 2033 (incorporated by reference from Exhibit 4.4 to ONEOK Inc.’s Current Report on Form 8-K, filed August 25, 2023 (File No.

4.45 Twenty-Fourth Supplemental Indenture, dated as of August 24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 6.625% Senior Notes due 2053 (incorporated by reference from Exhibit 4.5 to ONEOK Inc.’s Current Report on Form 8-K, filed August 25, 2023 (File No.

4.46 Twenty-Fifth Supplemental Indenture, dated as of September 25, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K, filed September 25, 2023 (File No.

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4.1 to ONEOK, Inc.’s Current Report on Form 8-K filed Nov.

18, 2022 (File No.

4.26 Twentieth Supplemental Indenture, dated as of Aug.

24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.550% Senior Notes due 2026 (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

25, 2023 (File No.

4.27 Twenty-First Supplemental Indenture, dated as of Aug.

24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.650% Senior Notes due 2028 (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

25, 2023 (File No.

4.28 Twenty-Second Supplemental Indenture, dated as of Aug.

24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 5.800% Senior Notes due 2030 (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

25, 2023 (File No.

4.29 Twenty-Third Supplemental Indenture, dated as of Aug.

24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 6.050% Senior Notes due 2033 (incorporated by reference from Exhibit 4.4 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

25, 2023 (File No.

4.30 Twenty-Fourth Supplemental Indenture, dated as of Aug.

24, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank National Association, as trustee, with respect to the 6.625% Senior Notes due 2053 (incorporated by reference from Exhibit 4.5 to ONEOK Inc.’s Current Report on Form 8-K, filed Aug.

25, 2023 (File No.

4.31 Twenty-Fifth Supplemental Indenture, dated as of Sept.

25, 2023, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

25, 2023 (File No.

4.32 Twenty-Sixth Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 4.250% Notes due 2027 (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.33 Twenty-Seventh Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 4.400% Notes due 2029 (incorporated by reference from Exhibit 4.3 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.34 Twenty-Eighth Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 4.750% Notes due 2031 (incorporated by reference from Exhibit 4.4 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.35 Twenty-Ninth Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 5.050% Notes due 2034 (incorporated by reference from Exhibit 4.5 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.36 Thirtieth Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 5.700% Notes due 2054 (incorporated by reference from Exhibit 4.6 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.37 Thirty-First Supplemental Indenture, dated as of Sept.

24, 2024, among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank National Association, as trustee, with respect to 5.850% Notes due 2064 (incorporated by reference from Exhibit 4.7 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

24, 2024 (File No.

4.38 Indenture, dated as of Sept.

25, 2006, between ONEOK Partners, L.P.

and Wells Fargo Bank, N.A., as trustee (incorporated by reference to Exhibit 4.1 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed Sept.

26, 2006 (File No.

4.39 Third Supplemental Indenture, dated as of Sept.

25, 2006, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.65% Senior Notes due 2036 (incorporated by reference to Exhibit 4.4 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed Sept.

26, 2006 (File No.

4.40 Fourth Supplemental Indenture, dated as of Sept.

28, 2007, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.85% Senior Notes due 2037 (incorporated by reference to Exhibit 4.2 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed Sept.

28, 2007 (File No.

4.41 Seventh Supplemental Indenture, dated as of Jan.

26, 2011, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.125% Senior Notes due 2041 (incorporated by reference from Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed Jan.

26, 2011 (File No.

4.42 Twelfth Supplemental Indenture, dated as of Sept.

12, 2013, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 6.200% Senior Notes due 2043 (incorporated by reference to Exhibit 4.4 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed Sept.

12, 2013 (File No.

4.43 Fourteenth Supplemental Indenture, dated as of March 20, 2015, among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee, with respect to the 4.90% Senior Notes due 2025 (incorporated by reference to Exhibit 4.3 to ONEOK Partners, L.P.’s Current Report on Form 8-K filed on March 20, 2015 (File No.

4.44 Fifteenth Supplemental Indenture, dated as of June 30, 2017, by and among ONEOK Partners, L.P., ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership and Wells Fargo Bank, N.A., as trustee (incorporated by reference from Exhibit 4.1 to ONEOK, Partners, L.P.’s Current Report on Form 8-K filed July 3, 2017 (File No.

4.45 Sixteenth Supplemental Indenture, dated as of Sept.

25, 2023, among ONEOK Partners, L.P., ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference from Exhibit 4.4 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

25, 2023 (File No.

4.46 Indenture, dated as of April 19, 2007, between Magellan Midstream Partners, L.P.

2 unchanged sentences

Bank National Association, as trustee, with respect to the 6.400% Senior Notes due 2037 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Form 8-K, filed April 20, 2007 (File No.

4.49 Second Supplemental Indenture, dated as of September 25, 2023, among Magellan Midstream Partners, L.P., ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.5 to ONEOK Inc.’s Current Report on Form 8-K, filed September 25, 2023 (File No.

4.50 Indenture dated as of August 11, 2010 between Magellan Midstream Partners, L.P.

Bank National Association, as trustee (incorporated by reference from Exhibit 4.1 to Midstream Partners, L.P.’s Form 8-K, filed August 16, 2010 (File No.

4.51 Second Supplemental Indenture, dated as of November 9, 2012, between ONEOK, Inc.

4.48 Second Supplemental Indenture, dated as of Sept.

25, 2023, among Magellan Midstream Partners, L.P., ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.5 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

25, 2023 (File No.

4.49 Third Supplemental Indenture, dated as of Dec.

13, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K filed Dec.

14, 2023 (File No.

4.50 Indenture, dated as of Aug.

11, 2010, between Magellan Midstream Partners, L.P.

Bank National Association, as trustee (incorporated by reference from Exhibit 4.1 to Midstream Partners, L.P.’s Form 8-K, filed Aug.

16, 2010 (File No.

4.51 Second Supplemental Indenture, dated as of Nov.

9, 2012, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 4.200% Senior Notes due 2042 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed November 9, 2012 (File No.

4.52 Third Supplemental Indenture, dated as of October 10, 2013, between ONEOK, Inc.

9, 2012 (File No.

4.52 Third Supplemental Indenture, dated as of Oct.

10, 2013, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 5.15% Senior Notes due 2043 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed October 10, 2013 (File No.

10, 2013 (File No.

4.53 Fourth Supplemental Indenture, dated as of March 4, 2015, between ONEOK, Inc.

4 unchanged sentences

Bank National Association, as trustee, with respect to the 4.20% Senior Notes due 2045 (incorporated by reference from Exhibit 4.3 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed March 4, 2015 (File No.

4.57 Sixth Supplemental Indenture, dated as of February 29, 2016, between ONEOK, Inc.

4.55 Sixth Supplemental Indenture, dated as of Feb.

29, 2016, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 5.00% Senior Notes due 2026 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed February 29, 2016 (File No.

4.58 Seventh Supplemental Indenture, dated as of September 13, 2016, between ONEOK, Inc.

29, 2016 (File No.

4.56 Seventh Supplemental Indenture, dated as of Sept.

13, 2016, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 4.25% Senior Notes due 2046 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed September 13, 2016 (File No.

4.59 Eighth Supplemental Indenture, dated as of October 3, 2017, between ONEOK, Inc.

13, 2016 (File No.

4.57 Eighth Supplemental Indenture, dated as of Oct.

3, 2017, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 4.200% Senior Notes due 2047 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed October 3, 2017 (File No.

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4.60 Ninth Supplemental Indenture, dated as of January 18, 2019, between ONEOK, Inc.

3, 2017 (File No.

4.58 Ninth Supplemental Indenture, dated as of Jan.

18, 2019, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 4.850% Senior Notes due 2049 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed January 18, 2019 (File No.

4.61 Tenth Supplemental Indenture, dated as of August 19, 2019, between ONEOK, Inc.

18, 2019 (File No.

4.59 Tenth Supplemental Indenture, dated as of Aug.

19, 2019, between ONEOK, Inc.

(successor in interest to Magellan Midstream Partners, L.P.), and U.S.

Bank National Association, as trustee, with respect to the 3.950% Senior Notes due 2050 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed August 19, 2019 (File No.

19, 2019 (File No.

4.60 Eleventh Supplemental Indenture, dated as of May 20, 2020, between ONEOK, Inc.

1 unchanged sentence

Bank National Association, as trustee, with respect to the 3.250% Senior Notes due 2030 (incorporated by reference from Exhibit 4.2 to Magellan Midstream Partners, L.P.’s Current Report on Form 8-K, filed May 20, 2020 (File No.

4.63 Twelfth Supplemental Indenture, dated as of September 25, 2023, among Magellan Midstream Partners, L.P., ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.6 to ONEOK Inc.’s Current Report on Form 8-K, filed September 25, 2023 (File No.

4.64 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.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.1 to ONEOK Inc.’s Current Report on Form 8-K filed December 14, 2023 (File No.

4.65 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.

Bank Trust Company, National Association, as trustee, (incorporated by reference from Exhibit 4.

2 to ONEOK Inc.’s Current Report on Form 8-K filed December 14, 2023 (File No.

4.66 Description of securities (incorporated by reference from Exhibit 4.43 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed February 23, 2021 (File No.

4.61 Twelfth Supplemental Indenture, dated as of Sept.

25, 2023, among Magellan Midstream Partners, L.P., ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership and U.S.

Bank Trust Company, National Association, as trustee (incorporated by reference from Exhibit 4.6 to ONEOK Inc.’s Current Report on Form 8-K, filed Sept.

25, 2023 (File No.

4.62 Thirteenth Supplemental Indenture, dated as of Dec.

13, 2023, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

Bank Trust Company, National Association, as trustee, (incorporated by reference from Exhibit 4.2 to ONEOK Inc.’s Current Report on Form 8-K filed Dec.

14, 2023 (File No.

4.63 Indenture, dated as of March 19, 2014, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed March 21, 2014 (File No.

4.64 First Supplemental Indenture, dated as of March 19, 2014, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.3 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed March 21, 2014 (File No.

4.65 Second Supplemental Indenture, dated as of Nov .

12, 2014, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.3 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed Nov.

12, 2014 (File No.

4.66 Third Supplemental Indenture, dated as of May 12, 2015, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.3 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed May 12, 2015 (File No.

4.67 Fourth Supplemental Indenture, dated as of July 14, 2016, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed July 14, 2016 ((File No.

4.68 Fifth Supplemental Indenture, dated as of May 11, 2017, by and between EnLink Midstream Partners, LP and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream Partners, LP’s Current Report on Form 8-K, filed May 11, 2017 (File No.

4.69 Indenture, dated as of April 9, 2019, by and between EnLink Midstream, LLC and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed April 9, 2019 (File No.

4.70 First Supplemental Indenture, dated as of April 9, 2019, by and among EnLink Midstream, LLC, EnLink Midstream Partners, LP, and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed April 9, 2019 (File No.

4.71 Indenture, dated as of Dec.

17, 2020, by and among EnLink Midstream, LLC, as issuer, EnLink Midstream Partners, LP, as guarantor, and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.1 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Dec.

18, 2020 (File No.

4.72 Indenture, dated as of Aug.

31, 2022, by and among EnLink Midstream, LLC, as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.1 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed on Aug.

31, 2022 (File No.

4.73 Indenture, dated as of Aug.

15, 2024, by and among EnLink Midstream, LLC, as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.1 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Aug.

15, 2024 (File No.

4.74 First Supplemental Indenture, dated as of Aug.

15, 2024, by and among EnLink Midstream, LLC, as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Aug.

15, 2024 (File No.

4.75 First Supplemental Indenture, dated as of Jan .

31, 2025, by and among Elk Merger Sub II, L.L.C., as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.1 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Jan .

31, 2025, File No.

4.76 Second Supplemental Indenture, dated as of Jan .

31, 2025, by and among Elk Merger Sub II, L.L.C., as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.2 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Jan .

31, 2025, File No.

4.77 First Supplemental Indenture, dated as of Jan .

31, 2025, by and among Elk Merger Sub II, L.L.C., as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.3 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Jan .

31, 2025, File No.

4.78 Second Supplemental Indenture, dated as of Jan .

31, 2025, by and among Elk Merger Sub II, L.L.C., as issuer, EnLink Midstream Partners, LP, as guarantor, and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.4 to EnLink Midstream, LLC’s Current Report on Form 8-K, filed Jan .

31, 2025, File No.

4.79 Third Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., Elk Merger Sub II, L.L.C., EnLink Midstream Partners, LP, ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.5 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.80 Second Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., Elk Merger Sub II, L.L.C., EnLink Midstream Partners, LP, ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.6 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.81 Second Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., Elk Merger Sub II, L.L.C., EnLink Midstream Partners, LP, ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.7 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.82 Third Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., Elk Merger Sub II, L.L.C., EnLink Midstream Partners, LP, ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.8 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.83 Sixth Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P.

and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.9 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.84 Seventh Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C.

and The Bank of New York Mellon Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.10 to ONEOK, Inc.’s Current Report on Form 8-K filed Feb .

5, 2025 (File No.

4.85 Fourteenth Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C., and U.S.

Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.11 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.86 Fourth Supplemental Indenture, dated as of Jan .

Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.12 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.87 Sixth Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C.

Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.13 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.88 Thirty-Second Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK, Inc., ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C.

Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.14 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.89 Seventeenth Supplemental Indenture, dated as of Jan .

31, 2025, by and among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, ONEOK, Inc., Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, Elk Merger Sub II, L.L.C., and Computershare Trust Company, N.A., as trustee (incorporated by reference to Exhibit 4.15 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

5, 2025 (File No.

4.90 Description of securities (incorporated by reference from Exhibit 4.43 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2020, filed Feb.

23, 2021 (File No.

10 ONEOK, Inc.

Long-Term Incentive Plan (incorporated by reference from Exhibit 10(a) to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2001, filed March 14, 2002 (File No.

Long-Term Incentive Plan (incorporated by reference from Exhibit 10(a) to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2001, filed March 14, 2002 (File No.

10.1 ONEOK, Inc.

Stock Compensation Plan for Non-Employee Directors (incorporated by reference from Exhibit 99 to ONEOK, Inc.’s Registration Statement on Form S-8 filed January 25, 2001 (File No.

Stock Compensation Plan for Non-Employee Directors (incorporated by reference from Exhibit 99 to ONEOK, Inc.’s Registration Statement on Form S-8 filed Jan.

25, 2001 (File No.

10.2 ONEOK, Inc.

Supplemental Executive Retirement Plan terminated and frozen December 31, 2004 (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed December 20, 2004 (File No.

Supplemental Executive Retirement Plan terminated and frozen Dec.

31, 2004 (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed Dec.

20, 2004 (File No.

10.3 ONEOK, Inc.

2005 Supplemental Executive Retirement Plan, as amended and restated, dated December 18, 2008 (incorporated by reference from Exhibit 10.3 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2008, filed February 25, 2009 (File No.

10.4 Credit Agreement, dated as of April 18, 2017, among ONEOK, Inc., Citibank, N.A., as administrative agent, a swingline lender, a letter of credit issuer and a lender, and the other lenders, swingline lenders and letter of credit issuers parties thereto (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed April 19, 2017 (File No.

T able of Contents

2005 Supplemental Executive Retirement Plan, as amended and restated, dated as of Dec.

18, 2008 (incorporated by reference from Exhibit 10.3 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2008, filed Feb.

25, 2009 (File No.

10.4 Form of Indemnification Agreement between ONEOK, Inc.

and ONEOK, Inc.

officers and directors, as amended (incorporated by reference from Exhibit 10.5 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, filed February 25, 2015 (File No.

officers and directors, as amended (incorporated by reference from Exhibit 10.5 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2014, filed Feb.

25, 2015 (File No.

10.5 Amended and Restated ONEOK, Inc.

1 unchanged sentence

10.6 ONEOK, Inc.

Employee Nonqualified Deferred Compensation Plan, as amended and restated December 16, 2004 (incorporated by reference from Exhibit 10.3 to ONEOK, Inc.’s Current Report on Form 8-K filed December 20, 2004 (File No.

Employee Nonqualified Deferred Compensation Plan, as amended and restated Dec.

16, 2004 (incorporated by reference from Exhibit 10.3 to ONEOK, Inc.’s Current Report on Form 8-K filed Dec.

20, 2004 (File No.

10.7 ONEOK, Inc.

2005 Nonqualified Deferred Compensation Plan, as amended and restated, dated December 18, 2008 (incorporated by reference from Exhibit 10.8 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2008, filed February 25, 2009 (File No.

2005 Nonqualified Deferred Compensation Plan, as amended and restated, dated as of Dec.

18, 2008 (incorporated by reference from Exhibit 10.8 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2008, filed Feb.

25, 2009 (File No.

10.8 ONEOK, Inc.

Deferred Compensation Plan for Non-Employee Directors, as amended and restated, dated December 18, 2008 (incorporated by reference from Exhibit 10.9 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2008, filed February 25, 2009 (File No.

10.10 Guaranty Agreement, dated as of June 30, 2017, by and between ONEOK Partners, L.P.

and ONEOK Partners Intermediate Limited Partnership, in favor of Citibank, N.A., as administrative agent, under the Credit Agreement, dated as of April 18, 2017, by and among ONEOK, Inc., Citibank, N.A.

and the other lenders parties thereto (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed July 3, 2017 (File No.

10.11 Extension Agreement, dated as of June 18, 2018, among ONEOK, Inc., Citibank, N.A., as administrative agent, a swingline lender, a letter of credit issuer and a lender, and the other lenders, swingline lenders and letter of credit issuers parties thereto (incorporated by reference from Exhibit No.

10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed June 18, 2018 (File No.

10.12 First Amendment and Extension Agreement, dated as of May 24, 2019, among ONEOK, Inc., Citibank, N.A., as administrative agent, a swingline lender, a letter of credit issuer and a lender, and the other lenders, swingline lenders and letter of credit issuers parties thereto (incorporated by reference from Exhibit No.

10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed May 29, 2019 (File No.

Deferred Compensation Plan for Non-Employee Directors, as amended and restated, dated as of Dec.

18, 2008 (incorporated by reference from Exhibit 10.9 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2008, filed Feb.

25, 2009 (File No.

10.9 Amended and Restated Limited Liability Company Agreement of Overland Pass Pipeline Company LLC entered into between ONEOK Overland Pass Holdings, L.L.C.

and Williams Field Services Company, LLC dated May 31, 2006 (incorporated by reference to Exhibit 10.6 to ONEOK Partners, L.P.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2006, filed August 4, 2006 (File No.

and Williams Field Services Company, LLC, dated as of May 31, 2006 (incorporated by reference to Exhibit 10.6 to ONEOK Partners, L.P.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2006, filed Aug.

4, 2006 (File No.

10.10 Form of ONEOK, Inc.

Officer Change in Control Severance Plan (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K filed July 22, 2011 (File No.

10.15 Form of 2023 Restricted Unit Stock Award Agreement dated February 22, 2023 (incorporated by reference from Exhibit 10.15 to ONEOK, Inc.’s Annual Report on Form 10-K, filed February 28, 2023 (File No.

10.16 Form of 2023 Performance Unit Award Agreement dated February 22, 2023 (incorporated by reference from Exhibit 10.16 to ONEOK, Inc.’s Annual Report on Form 10-K, filed February 28, 2023 (File No.

10.11 Form of 2023 Restricted Unit Stock Award Agreement, dated as of Feb.

22, 2023 (incorporated by reference from Exhibit 10.15 to ONEOK, Inc.’s Annual Report on Form 10-K, filed Feb.

28, 2023 (File No.

10.12 Form of 2023 Performance Unit Award Agreement, dated as of Feb.

22, 2023 (incorporated by reference from Exhibit 10.16 to ONEOK, Inc.’s Annual Report on Form 10-K, filed Feb.

28, 2023 (File No.

10.13 Form of 2022 Restricted Unit Award Agreement (incorporated by reference from Exhibit 10.17 to ONEOK, Inc.’s Annual Report on Form 10-K, filed March 1, 2022 (File No.

T able of Contents

10.14 Form of 2022 Performance Unit Award Agreement (incorporated by reference from Exhibit 10.18 to ONEOK, Inc.’s Annual Report on Form 10-K, filed March 1, 2022 (File No.

2 unchanged sentences

10.16 ONEOK, Inc.

Profit Sharing Plan, dated January 1, 2005 (incorporated by reference from Exhibit 99 to ONEOK, Inc.’s Registration Statement on Form S-8 filed December 30, 2004 (File No.

Profit Sharing Plan, dated as of Jan.

1, 2005 (incorporated by reference from Exhibit 99 to ONEOK, Inc.’s Registration Statement on Form S-8 filed Dec.

30, 2004 (File No.

333-121769)).

10.17 ONEOK, Inc.

Equity Compensation Plan, as amended and restated, dated December 18, 2008 (incorporated by reference from Exhibit 10.44 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2008, filed February 25, 2009 (File No.

10.22 Equity Distribution Agreement, dated August 3, 2023 , among ONEOK, Inc., and BofA Securities, Inc., as sales agent , principals and/or forward sellers, as forward purchasers (incorporated by reference from Exhibit 1.1 to ONEOK, Inc.’s Current Report on Form 8-K with a fil ed August 3, 2023 (File No.

10.23 Second Amendment to Credit Agreement, dated as of June 26, 2020, among ONEOK, Inc., Citibank, N.A., as administrative agent, a swingline lender, a letter of credit issuer and a lender, and the other lenders, swingline lenders and letter of credit issuers parties thereto (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed June 30, 2020 (File No.

10.24 Form of 2024 Restricted Unit Award Agreement, dated February 27 , 2024.

10.25 Form of 2024 Performance Unit Award Agreement, dated February 27 , 2024.

10.26 Form of 2021 Restricted Unit Award Agreement (incorporated by reference from Exhibit 10.33 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed February 23, 2021 (File No.

10.27 Form of 2021 Performance Unit Award Agreement (incorporated by reference from Exhibit 10.34 to ONEOK, Inc's Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed February 23, 2021 (File No.

10.28 Form of 2020 Restricted Unit Award Agreement (incorporated by reference to Exhibit 10.35 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, filed February 25, 2020 (File No.

10.29 Form of 2020 Performance Unit Award Agreement (incorporated by reference to Exhibit 10.36 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2019, filed February 25, 2020 (File No.

Equity Compensation Plan, as amended and restated, dated as of Dec.

18, 2008 (incorporated by reference from Exhibit 10.44 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2008, filed Feb.

25, 2009 (File No.

10.18 Equity Distribution Agreement, dated as of Aug.

3, 2023, among ONEOK, Inc., and BofA Securities, Inc., as sales agent, principals and/or forward sellers, as forward purchasers (incorporated by reference from Exhibit 1.1 to ONEOK, Inc.’s Current Report on Form 8-K with a filed Aug.

3, 2023 (File No.

10.19 Form of 2024 Restricted Unit Award Agreement, dated as of Feb.

27, 2024 (incorporated by reference from Exhibit 10.24 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2023, filed Feb.

27, 2024 (File No.

10.20 Form of 2024 Performance Unit Award Agreement, dated as of Feb.

27, 2024 (incorporated by reference from Exhibit 10.25 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2023, filed Feb.

27, 2024 (File No.

10.21 Form of 2021 Restricted Unit Award Agreement (incorporated by reference from Exhibit 10.33 to ONEOK, Inc.'s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2020, filed Feb.

23, 2021 (File No.

10.22 Form of 2021 Performance Unit Award Agreement (incorporated by reference from Exhibit 10.34 to ONEOK, Inc's Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2020, filed Feb.

23, 2021 (File No.

10.23 Form of 2025 Restricted Unit Award Agreement, dated as of Feb.

10.24 Form of 2025 Performance Unit Award Agreement, dated as of Feb.

10.25 ONEOK, Inc.

Employee Stock Purchase Plan as amended and restated effective May 2 4 , 20 23 (incorporated by reference to Exhibit 99.1 to ONEOK, Inc.’s Registration Statement on Form S-8, filed November 9, 2023 (File No.

Employee Stock Purchase Plan as amended and restated effective May 24, 2023 (incorporated by reference to Exhibit 99.1 to ONEOK, Inc.’s Registration Statement on Form S-8, filed Nov.

9, 2023 (File No.

10.26 ONEOK, Inc.

2020 Nonqualified Deferred Compensation Plan dated July 24, 2019, and effective as of January 1, 2020 (incorporated by reference from Exhibit 10.40 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, filed February 23, 2021 (File No.

2020 Nonqualified Deferred Compensation Plan, dated as of July 24, 2019, and effective as of Jan.

1, 2020 (incorporated by reference from Exhibit 10.40 to ONEOK, Inc.’s Annual Report on Form 10-K for the fiscal year ended Dec.

31, 2020, filed Feb.

23, 2021 (File No.

10.27 Form of ONEOK, Inc.

1 unchanged sentence

and Pierce H.

Norton II (incorporated by reference to Exhibit 10.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2021, filed August 4, 2021 (File No.

T able of Contents

Norton II (incorporated by reference to Exhibit 10.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2021, filed Aug.

4, 2021 (File No.

10.28 Form of ONEOK, Inc.

Equity Incentive Plan Restricted Unit Award Agreement (Make-Whole Award) (incorporated by reference to Exhibit 10.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed November 2, 2022 (File No.

10.34 Restricted Unit Award Agreement between ONEOK, Inc.

and Pamela Amburgy (incorporated by reference to Exhibit 10.2 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed November 2, 2022 (File No.

Equity Incentive Plan Restricted Unit Award Agreement (Make-Whole Award) (incorporated by reference to Exhibit 10.1 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended Sept.

30, 2022, filed Nov.

2, 2022 (File No.

10.30 Restricted Unit Award Agreement between ONEOK, Inc.

and Janet Hogan (incorporated by reference to Exhibit 10.3 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed November 2, 2022 (File No.

and Janet Hogan (incorporated by reference to Exhibit 10.3 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended Sept.

30, 2022, filed Nov.

2, 2022 (File No.

10.31 Restricted Unit Award Agreement between ONEOK, Inc.

and Darren Wallis (incorporated by reference to Exhibit 10.4 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022, filed November 2, 2022 (File No.

10.37 Amended and Restated Credit Agreement, dated June 10, 2022, by and among ONEOK, Inc., as borrower, Citibank, N.A., as administrative agent, a swing line lender, a letter of credit issuer and a lender, and the other lenders, swing line lenders and letter of credit issuers parties thereto (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed June 13, 2022 (File No.

10.38 Amended and Restated Guaranty Agreement, dated June 10, 2022, by and between ONEOK Partners, L.P.

and ONEOK Partners Intermediate Limited Partnership, in favor of Citibank, N.A.

(incorporated by reference from Exhibit 10.2 to ONEOK, Inc.’s Current Report on Form 8-K, filed June 13, 2022 (File No.

10.39 Guaranty Agreement, dated September 25, 2023, by and between Magellan Midstream Partners, L.P., in favor of Citibank, N.A., as administrative agent, under the Credit Agreement, dated as of June 10, 2022, by and among ONEOK, Inc., Citibank, N.A.

and the other lenders (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed September 25, 2023 (File No.

10.40 First Amendment to Amended and Restated Credit Agreement dated as of May 26, 2023 by and among ONEOK, Inc., ONEOK Partners Intermediate Limited Partnership and ONEOK Partners, L.P., the lenders party thereto and Citibank, N.A., as administrative agent, swing line lender and L/C Issuer (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed May 26, 2023 (File No.

and Darren Wallis (incorporated by reference to Exhibit 10.4 to ONEOK, Inc.’s Quarterly Report on Form 10-Q for the quarter ended Sept.

30, 2022, filed Nov.

2, 2022 (File No.

10.32 Second Amended and Restated Credit Agreement, dated as of Feb.

14, 2025, by and amount ONEOK, Inc., as borrower, Citibank, N.A., as administrative ag ent, a swing line lender, a letter of credit issuer and a lender, and each of the other lenders, swing line l enders and letter of credit issuers party th ereto (incorporated by reference from Exhibit 10.1 to ONEOK, Inc.

’ s Current Report on Form 8-K, filed Feb.

20, 2025 (File No.

10.33 Second Amended and Restated Guaranty Agreement, dated as of Feb .

14, 2025, by and among ONEOK Partners, L.P., ONEOK Partners Intermediate Limited Partnership, Magellan Midstream Partners, L.P., EnLink Midstream Partners, LP, and Elk Merger Sub II, L.L.C., in favor of Citibank, N.A.

(incorporated by reference from Exhibit 10.2 to ONEOK, Inc.’s Current Report on Form 8-K, filed Feb .

20 , 2025 (File No.

10.34 ONEOK, Inc.

Long-Term Incentive Plain, as amended and restated, dated January 26, 2021 (f/k/a the Magellan Midstream Partners, L.P., Long -Term Incentive Plan) (incorporated by reference to Magell an Midstream Partners, L.P.

’ s Exhibit 10 (a) to Form 10-K filed April 29, 2021) (File No.

10.42 Amendment N o.

1 dated April 1, 2021 to ONEOK, Inc.

Long-Term Incentive Plain, as amended and restated, dated as of Jan.

26, 2021 (f/k/a the Magellan Midstream Partners, L.P., Long-Term Incentive Plan) (incorporated by reference to Magellan Midstream Partners, L.P.’s Exhibit 10(a) to Form 10-K filed April 29, 2021) (File No.

10.35 Amendment No.

1, dated as of April 1, 2021 to ONEOK, Inc.

Long-Term Incentive Plan (f/k/a the Magellan Midstream Partners, L.P.

Long-Term Incentive Plan) (inco r porated by reference to Exhibit 10.2 to Magellan Midstream Partners, L.P.

’ s Form 10-Q filed April 29, 2021) (File No.

Long-Term Incentive Plan) (incorporated by reference to Exhibit 10.2 to Magellan Midstream Partners, L.P.’s Form 10-Q filed April 29, 2021) (File No.

10.36 EnLink Midstream, LLC 2014 Long-Term Incentive Plan, as amended and restated, dated Dec .

16, 2021 (incorporated by reference to EnLink Midstream, LLC’s Exhibit 10.3 to Form 10-K, filed Feb .

16, 2022 (File No.

10.37 Support Agreement, dated as of Nov .

24, 2024, by and among ONEOK, Inc.

and EnLink Midstream, LLC (incorporated by reference to Exhibit 10.1 to ONEOK, Inc.’s Current Report on Form 8-K, filed Nov .

25, 2024 (File No.

19 Securities and Insider Trading Policy

21 Required information concerning the registrant’s subsidiaries.

3 unchanged sentences

Norton II pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

T able of Contents

31.2 Certification of Walter S.

16 unchanged sentences

(i) Document and Entity Information;

(ii) Consolidated Statements of Income for the years ended December 31, 2023, 2022, and 2021 (iii) Consolidated Statements of Comprehensive Income for the years ended December 31, 2023, 2022, and 2021;

(iv) Consolidated Balance Sheets at December 31, 2023 and 2022;

(v) Consolidated Statements of Cash Flows for the years ended December 31, 2023, 2022, and 2021;

(vi) Consolidated Statements of Changes in Equity for the years ended December 31, 2023, 2022, and 2021 and (vii) Notes to Consolidated Financial Statements.

(ii) Consolidated Statements of Income for the years ended Dec.

31, 2024, 2023 and 2022 (iii) Consolidated Statements of Comprehensive Income for the years ended Dec.

31, 2024, 2023 and 2022;

(iv) Consolidated Balance Sheets at Dec.

31, 2024 and 2023;

(v) Consolidated Statements of Cash Flows for the years ended Dec.

31, 2024, 2023 and 2022;

(vi) Consolidated Statements of Changes in Equity for the years ended Dec.

31, 2024, 2023 and 2022 and (vii) Notes to Consolidated Financial Statements.

FORM 10-K SUMMARY

T able of Contents

Pursuant to the requirements of Section 13 or 15(d) of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

15 unchanged sentences

Relations and Corporate Development

Derksen /s/ Jim W.

Derksen Jim W.

Derksen /s/ Pattye L.

Derksen Pattye L.

Director Director

/s/ Pattye L.

/s/ Eduardo A.

Director Director

Helderman /s/ Eduardo A.

Helderman Eduardo A.

Helderman /s/ Gerald B.

Helderman Gerald B.

Director Director

/s/ Randall J.

Larson /s/ Gerald B.

Larson Gerald B.

Director Director

/s/ Steven J.

Malcolm Wayne T.

Larson /s/ Wayne T.

Larson Wayne T.

Director Director

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-K

Item 9A. Controls and Procedures