ONEOK 10-Q 2025-09-30

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended September 30, 2025.

OR

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from __________ to __________.

Commission file number 001-13643

ONEOK, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (918) 588-7000

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ Emerging growth company ☐

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.☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

On October 20, 2025, the Company had 629,231,557 shares of common stock outstanding.

Table of Contents

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ONEOK, Inc.

TABLE OF CONTENTS

As used in this Quarterly Report, references to “ONEOK,” “we,” “our” or “us” refer to ONEOK, Inc., an Oklahoma corporation, and its predecessors and subsidiaries, including Magellan, EnLink and Medallion, unless the context indicates otherwise.

The statements in this Quarterly Report that are not historical information, including statements concerning plans and objectives of management for future operations, economic performance or related assumptions, are forward-looking statements. Forward-looking statements may include words such as “anticipates,” “believes,” “continues,” “could,” “estimates,” “expects,” “forecasts,” “goal,” “guidance,” “intends,” “may,” “might,” “outlook,” “plans,” “potential,” “projects,” “scheduled,” “should,” “target,” “will,” “would” and other words and terms of similar meaning. Although we believe that our expectations regarding future events are based on reasonable assumptions, we can give no assurance that such expectations or assumptions will be achieved. Important factors that could cause actual results to differ materially from those in the forward-looking statements are described under Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Forward-Looking Statements” and Part II, Item 1A, “Risk Factors,” in this Quarterly Report, and under Part I, Item 1A, “Risk Factors,” in our Annual Report.

GLOSSARY

The abbreviations, acronyms and industry terminology used in this Quarterly Report are defined as follows:

INFORMATION AVAILABLE ON OUR WEBSITE

We make available, free of charge, on our website (www.oneok.com) copies of our Annual Reports on Form 10-K, Quarterly Reports, Current Reports on Form 8-K, Proxy Statements, amendments to those reports filed or furnished to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act and reports of holdings of our securities filed by our officers and directors under Section 16 of the Exchange Act as soon as reasonably practicable after filing such material electronically or otherwise furnishing it to the SEC. Copies of our Code of Business Conduct and Ethics, Corporate Governance Guidelines, Director Independence Guidelines, Corporate Sustainability Report and the written charters of our Board Committees also are available on our website, and we will provide copies of these documents upon request.

In addition to our filings with the SEC and materials posted on our website, we also use social media platforms as additional channels of distribution to reach public investors. Information contained on our website or posted on our social media accounts, including any corresponding applications, are not incorporated by reference into this report.

PART I - FINANCIAL INFORMATION

See accompanying Notes to Consolidated Financial Statements.

See accompanying Notes to Consolidated Financial Statements.

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The following discussion and analysis should be read in conjunction with our unaudited Consolidated Financial Statements and the Notes to Consolidated Financial Statements in this Quarterly Report, as well as our Annual Report.

RECENT DEVELOPMENTS

Please refer to the “Financial Results and Operating Information” and “Liquidity and Capital Resources” sections of Management’s Discussion and Analysis of Financial Condition and Results of Operations in this Quarterly Report for additional information.

Eiger Express Pipeline - In August 2025, we, WhiteWater, MPLX LP and Enbridge Inc., through the existing Matterhorn joint venture, announced the new approximately 450-mile Eiger Express Pipeline, designed to transport natural gas from the Permian Basin to Katy, Texas. WhiteWater will construct and operate the pipeline. Our total ownership interest in the pipeline will be 25.5%, which includes a 15% interest held directly in the Eiger joint venture with the remainder held through Matterhorn. We expect to invest a total of approximately $350 million into this project, which is expected to be completed in mid-2028.

Bighorn Natural Gas Processing Plant - In August 2025, we announced plans to construct the Bighorn natural gas processing plant in the Permian Basin, with processing capacity of 300 MMcf/d and the ability to treat natural gas containing high levels of CO2. We expect the Bighorn plant, including the high-CO2 treater, to cost approximately $365 million. The Bighorn plant is supported by acreage dedications with long-term primarily fee-based contracts and is expected to be completed in mid-2027.

BridgeTex Additional Interest Acquisition - On July 22, 2025, we completed the BridgeTex Additional Interest Acquisition. Pursuant to the purchase agreement, we paid approximately $270 million in cash, which we funded with short-term borrowings. Following the completion of the transaction, we now have a 60% ownership interest in BridgeTex.

Delaware Basin JV Acquisition - On May 28, 2025, we completed the Delaware Basin JV Acquisition for $941 million. Pursuant to the purchase agreement, we paid $550 million in cash, including post-closing adjustments, which we funded with short-term borrowings and issued approximately 4.9 million shares of ONEOK common stock to the seller with a fair value of $391 million as of the closing date. Following the completion of the transaction, Delaware Basin JV is now a wholly owned subsidiary.

Texas City Logistics and MBTC Pipeline - In February 2025, we announced definitive agreements to form joint ventures with MPLX to construct a 400 MBbl/d liquefied petroleum gas export terminal in Texas City, Texas, and a new 24-inch pipeline from our Mont Belvieu, Texas, storage facility to the new terminal. Texas City Logistics, the export terminal joint venture, is owned 50% by us and 50% by MPLX, with MPLX constructing and operating the facility. MBTC Pipeline, the pipeline joint venture, is owned 80% by us and 20% by MPLX, and we will construct and operate the pipeline. We expect to invest a total of approximately $1.0 billion into these projects, which are expected to be completed in early 2028.

EnLink Acquisition - On January 31, 2025, we completed the EnLink Acquisition. Pursuant to the EnLink Merger Agreement, each publicly held common unit of EnLink was exchanged for a fixed ratio of 0.1412 shares of ONEOK common stock, including EnLink Units that were exchanged for all previously outstanding Series B Preferred Units immediately prior to closing. We issued 41 million shares of common stock with a fair value of $4.0 billion as of the closing date of the EnLink Acquisition. EnLink is now a wholly owned subsidiary.

Business Update and Market Conditions - Earnings increased in the third quarter of 2025, compared with the third quarter of 2024, due primarily to the positive impact of the EnLink and Medallion Acquisitions across our segments. Our extensive and integrated assets are located in, and connected with, some of the most productive shale basins, as well as refineries and demand centers, in the United States.

Due to changes in the commodity price environment, we are monitoring producers’ drilling and completion plans, but we do not currently anticipate material changes to our volume expectations. Our counterparties are primarily major and independent crude oil and natural gas producers that are able to produce in a lower commodity price environment. We are also monitoring the impact of the tariffs announced by the federal government in 2025, which could increase our costs for materials and equipment. Due to the timing of construction of our larger projects, proactively monitoring lead times on materials and equipment used in constructing capital projects and entering into procurement agreements for long-lead items, we do not expect the announced tariffs to have a material impact on capital expenditures in 2025.

Although the energy industry has experienced many commodity cycles, we have positioned ourselves to reduce exposure to direct commodity price volatility. Each of our four reportable segments are primarily fee-based, and we expect our consolidated earnings to be approximately 90% fee-based in 2025. Our fee-based earnings are primarily supported by long-term contracts, including minimum volume commitments and take-or-pay agreements, with investment-grade counterparties.

In addition, our Natural Gas Gathering and Processing and Natural Gas Liquids segments are exposed to volumetric risk as a result of drilling and completion activity, severe weather disruptions, operational outages, global crude oil, NGL and natural gas demand and normal volumetric well declines. Our Refined Products and Crude segment is exposed to volumetric risk due to demand for Refined Products and crude oil in the markets we serve. Our Natural Gas Pipelines segment is not exposed to significant volumetric risk due to the majority of our capacity being subscribed under long-term, firm fee-based contracts.

One Big Beautiful Bill Act (OBBBA) - On July 4, 2025, the OBBBA was signed into law. The OBBBA makes changes to U.S. tax law and includes provisions that, beginning in January 2025, make permanent full expensing of tangible personal property and restore EBITDA-based calculations for purposes of the business interest deduction. We expect the OBBBA to reduce our cash taxes beginning with the 2025 tax year; however, we do not anticipate the OBBBA to materially impact net income. We will continue to monitor the implementation of the OBBBA by the U.S. Treasury Department and Internal Revenue Service and will review applicable guidance and rulemaking as it becomes available.

Capital Projects - Our primary capital projects are outlined in the table below:

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COUNTERPARTY CREDIT RISK

We assess the creditworthiness of our counterparties on an ongoing basis and require security, including prepayments, letters of credit, liens and other forms of collateral, when appropriate. Certain of our counterparties may be impacted by a relatively low commodity price environment and could experience financial problems, which could result in nonpayment and/or nonperformance, which could impact adversely our results of operations.

Natural Gas Gathering and Processing - In our Natural Gas Gathering and Processing segment, for the nine months ended September 30, 2025, including EnLink, approximately 75% of the downstream commodity sales were made to customers rated investment-grade by S&P, approved through comparable internal counterparty analysis or were secured by letters of credit or other collateral.

Natural Gas Liquids - In our Natural Gas Liquids segment, for the nine months ended September 30, 2025, the creditworthiness of our counterparties, which are primarily investment grade, is consistent with that discussed in Part II, Item 7A, Quantitative and Qualitative Disclosures about Market Risk, in our Annual Report.

Natural Gas Pipelines - In our Natural Gas Pipelines segment, for the nine months ended September 30, 2025, including EnLink, approximately 80% of our revenues were from customers rated investment-grade by S&P, approved through comparable internal counterparty analysis or were secured by letters of credit or other collateral. In addition, the majority of our pipeline tariffs in this segment provide us the ability to require security from shippers.

Refined Products and Crude - In our Refined Products and Crude segment, for the nine months ended September 30, 2025, including Medallion and EnLink, approximately 85% of our revenues were from customers rated investment-grade by S&P, approved through comparable internal counterparty analysis or were secured by letters of credit, liens or other collateral.

There have been no material changes in market risk exposures that would affect the other quantitative and qualitative disclosures presented in Part II, Item 7A, Quantitative and Qualitative Disclosures about Market Risk, in our Annual Report.

See Note D of the Notes to Consolidated Financial Statements in this Quarterly Report for more information on our hedging activities.

Quarterly Evaluation of Disclosure Controls and Procedures - 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.

Changes in Internal Control over Financial Reporting - There have been no changes in our internal control over financial reporting during the quarter ended September 30, 2025, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II - OTHER INFORMATION

**ITEM 1.**LEGAL PROCEEDINGS

We have elected to use a $1 million threshold for disclosing environmental proceedings.

Information about our legal proceedings is included in Note J of the Notes to Consolidated Financial Statements in this Quarterly Report and under Note P of the Notes to Consolidated Financial Statements in our Annual Report.

There have been no material changes to the risk factors set forth in Part I, Item 1A, Risk Factors, of our Annual Report that could affect us and our business. Although we have tried to discuss key factors, our investors need to be aware that other risks may prove to be important in the future. New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial performance. Investors should consider carefully the discussion of risks and the other information included or incorporated by reference in this Quarterly Report, including “Forward-Looking Statements,” which are included in Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

**ITEM 2.**UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

ISSUER PURCHASES OF EQUITY SECURITIES

(a) - In January 2024, our Board of Directors authorized a share repurchase program to buy up to $2.0 billion of our outstanding common stock. The program will terminate upon completion of the repurchases of the $2.0 billion of common stock, or on January 1, 2029, whichever occurs first.

(b) - Excludes 611,237 shares that were repurchased in September 2025, and settled in October 2025.

**ITEM 3.**DEFAULTS UPON SENIOR SECURITIES

Not applicable.

**ITEM 4.**MINE SAFETY DISCLOSURES

Not applicable.

During the three months ended September 30, 2025, 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.

Readers of this report should not rely on or assume the accuracy of any representation or warranty or the validity of any opinion contained in any agreement filed as an exhibit to this Quarterly Report, because such representation, warranty or opinion may be subject to exceptions and qualifications contained in separate disclosure schedules, may represent an allocation of risk between parties in the particular transaction, may be qualified by materiality standards that differ from what may be viewed as material for securities law purposes, or may no longer continue to be true as of any given date. All exhibits attached to this Quarterly Report are included for the purpose of complying with requirements of the SEC. Other than the certifications made by our officers pursuant to the Sarbanes-Oxley Act of 2002 included as exhibits to this Quarterly Report, all exhibits are included only to provide information to investors regarding their respective terms and should not be relied upon as constituting or providing any factual disclosures about us, any other persons, any state of affairs or other matters.

The following exhibits are filed as part of this Quarterly Report:

Attached as Exhibit 101 to this Quarterly Report are the following Inline XBRL-related documents: (i) Document and Entity Information; (ii) Consolidated Statements of Income for the three and nine months ended September 30, 2025 and 2024; (iii) Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2025 and 2024; (iv) Consolidated Balance Sheets at September 30, 2025, and December 31, 2024; (v) Consolidated Statements of Cash Flows for the nine months ended September 30, 2025 and 2024; (vi) Consolidated Statements of Changes in Equity for the three and nine months ended September 30, 2025 and 2024; and (vii) Notes to Consolidated Financial Statements.

SIGNATURES

Pursuant to the requirements of the Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.