OKE: Acquisition or asset disposal · Company disclosure

Item 2.02 Results of Operations and Financial Condition On August 3, 2026, we announced our results of operations for the quarter ended June 30, 2026, and increased 2026 financial guidance. The news release is furnished as Exhibit 99.1 and is incorporated by reference herein. Item 7.01 Regulation FD Disclosure On August 3, 2026, we announced our results of operations for the quarter ended June 30, 2026, and increased 2026 financial guidance. The news release is furnished as Exhibit 99.1 and is incorporated by reference herein. Item 9.01 Financial Statements and Exhibits (d) Exhibits Exhibit Number Description 99.1 News release issued by ONEOK, Inc. dated August 3, 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 Exchange Act, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized. ONEOK, Inc. Date: August 3, 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