Board veterans to exit ONEOK (NYSE: OKE) after 2026 meeting

Rhea-AI Filing Summary

ONEOK, Inc. reported that directors Gerald B. Smith and Pattye L. Moore will retire from its board at the end of their current terms on May 20, 2026, the date of the 2026 annual meeting of shareholders. Smith will retire under ONEOK’s mandatory director age retirement policy, while Moore has chosen to retire and not stand for re-election. The company stated that neither director’s decision is due to any disagreement with ONEOK on its operations, policies or practices. The report also notes that a related press release dated March 25, 2026 is included as an exhibit.

8-K Event Classification

2 items: 5.02, 9.01

2 items

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported) March 20, 2026

ONEOK, Inc.

(Exact name of registrant as specified in its charter)

Oklahoma

001-13643

73-1520922

(State or other jurisdiction

(Commission

(IRS Employer

of incorporation)

File Number)

Identification No.)

100 West Fifth Street; Tulsa, OK

(Address of principal executive offices)

74103

(Zip code)

(918) 588-7000

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class			Trading Symbol(s)			Name of each exchange on which registered
Common stock, par value of $0.01			OKE			New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

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.☐

Item 5.02						Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
						On March 20, 2026, Pattye L. Moore informed the Board of Directors (the “Board”) of ONEOK, Inc. (“ONEOK”) of her decision to retire from the Board at the end of her current term and not stand for re-election as a director at ONEOK’s 2026 annual meeting of shareholders (the “Annual Meeting”), which is scheduled for May 20, 2026. Ms. Moore’s current term as a director is scheduled to expire on the date of the Annual Meeting. Ms. Moore’s decision to retire and not stand for re-election is not a result of any disagreement with ONEOK, including on any matter relating to its operation, policies or practices. ONEOK also announced on March 25, 2026, that Gerald B. Smith will not be standing for re-election to the Board due to the Company’s mandatory age retirement policy, which provides that a director will retire from the Board no later than immediately prior to the annual meeting of shareholders following a director’s 75th birthday. Mr. Smith’s current term is scheduled to expire on the date of the Annual Meeting. Mr. Smith’s decision to retire and not stand for re-election is not a result of any disagreement with ONEOK, including on any matter relating to its operation, policies or practices.
Item 9.01						Financial Statements and Exhibits
			(d)			Exhibits
Exhibit number						Description
99.1						Press release, dated March 25, 2026
104						Cover page interactive data file (embedded within the Inline XBRL document and contained in Exhibit 101).

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

									ONEOK, Inc.
Date:			March 25, 2026			By:			/s/ Walter S. Hulse III
									Walter S. Hulse III Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development

3

-more- News ONEOK Announces Board Transitions Gerald B. Smith and Pattye L. Moore to Retire from ONEOK Board of Directors TULSA, Okla. – March 25, 2026 – ONEOK, Inc. (NYSE: OKE) today announced that directors Gerald B. Smith and Pattye L. Moore will retire from the company’s board of directors at the end of their current terms on May 20, 2026, the date of the company’s 2026 Annual Meeting of Shareholders. Smith will retire in accordance with ONEOK’s mandatory director retirement age policy and Moore has elected to retire. “Over the course of their many years of service, Gerald and Pattye have demonstrated a deep commitment to ONEOK and its long-term success,” said Julie H. Edwards, chair of ONEOK’s board of directors. “During their tenure, the company has undergone significant transformation and we are very grateful for the expertise, judgment and many meaningful contributions they have brought to ONEOK through that period.” Smith has served on ONEOK’s board since 2020. He was the founder, chairman and chief executive officer of Smith, Graham & Company Investment Advisors. Moore has served on ONEOK’s board since 2002. She is the former chairman of Red Robin Gourmet Burgers and former president of Sonic Corp. “On behalf of ONEOK’s management team and employees, I want to thank Gerald and Pattye for their years of service and the guidance they’ve provided,” said Pierce H. Norton II, ONEOK president and CEO. “Their counsel and oversight have helped shape the decisions that strengthened ONEOK into the premier midstream infrastructure company it is today and we’re grateful for the lasting impact they’ve made.” ---------------------------------------------------------------------------------------------------------------- At ONEOK (NYSE: OKE), we deliver energy products and services vital to an advancing world. We are a leading midstream operator that provides gathering, processing, fractionation, transportation, storage and marine export services. Through our approximately 60,000-mile pipeline network, we transport the natural gas, natural gas liquids (NGLs), refined products and crude oil that help meet domestic and international energy demand, contribute to energy security and provide safe, reliable and responsible energy solutions needed today and into the future. As one of the largest integrated energy infrastructure companies in North March 25, 2026 Exhibit 99.1

ONEOK Announces Board Transitions March 25, 2026 Page 2 -more- America, ONEOK is delivering energy that makes a difference in the lives of people in the U.S. and around the world. ONEOK is an S&P 500 company headquartered in Tulsa, Oklahoma. For information about ONEOK, visit the website: www.oneok.com. For the latest news about ONEOK, find us on LinkedIn, Facebook, X and Instagram. Contacts: Investor Relations: Megan Patterson 918-561-5325 ONEOKInvestorRelations@oneok.com Media Relations: Charlsey Phillips 918-510-1664 Media@oneok.com ###

FAQ

What board changes did ONEOK (OKE) announce in this filing?

ONEOK announced that directors Gerald B. Smith and Pattye L. Moore will retire from its board at the end of their current terms on May 20, 2026, coinciding with the company’s 2026 annual meeting of shareholders, and will not stand for re-election.

Why is ONEOK director Gerald B. Smith retiring from the board?

Gerald B. Smith will retire from ONEOK’s board in line with the company’s mandatory age retirement policy, which requires directors to retire no later than immediately before the annual meeting following their 75th birthday. His current term ends at the May 20, 2026 annual meeting.

Why is ONEOK director Pattye L. Moore leaving the board?

Pattye L. Moore informed ONEOK’s board that she has elected to retire at the end of her current term and will not stand for re-election at the May 20, 2026 annual meeting. The company states her decision is not due to any disagreement with ONEOK.

Did the retiring ONEOK directors cite any disagreements with the company?

No. ONEOK explicitly states that the decisions by Gerald B. Smith and Pattye L. Moore to retire and not stand for re-election are not the result of any disagreement with the company on its operations, policies, practices, or other matters, according to the disclosure.

How long have Gerald B. Smith and Pattye L. Moore served on ONEOK’s board?

The company notes that Gerald B. Smith has served on ONEOK’s board since 2020, while Pattye L. Moore has served since 2002. The press release highlights their many years of service and contributions during a period of significant transformation at ONEOK.

What additional information about ONEOK (OKE) is provided in the press release?

The press release describes ONEOK as a leading midstream operator with an approximately 60,000-mile pipeline network transporting natural gas, NGLs, refined products and crude oil. It emphasizes providing safe, reliable energy solutions and notes that ONEOK is an S&P 500 company headquartered in Tulsa, Oklahoma.

Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EX-99.1 4.0 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 3.2 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT 14.2 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 24.9 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 14.8 KB