(OKE)

Role: President and Chief Executive Officer, Director
Signature: /s/ Sarah M. Rechter, Attorney-in-Fact for Pierce H Norton II
Issuer symbol: OKE
Transactions as of: 22 Feb 2026
Net transactions value: -$678,943
Form type: 4
Filing time: 24 Feb 2026, 16:26:40 UTC
Previous filing: 20 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
NORTON PIERCE	President and Chief Executive Officer, Director	100 WEST FIFTH STREET, TULSA	/s/ Sarah M. Rechter, Attorney-in-Fact for Pierce H Norton II	24 Feb 2026	0001283387

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	OKE	Common Stock, par value $0.01	Options Exercise		+17,588	+15%		135,556	22 Feb 2026	Direct	F1
transaction	OKE	Common Stock, par value $0.01	Tax liability	$678,943	-7,774	-5.7%	$87.33	127,782	22 Feb 2026	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	OKE	RSU 2023	Options Exercise		-17,588	-100%		0	22 Feb 2026	Common Stock, par value $0.01	17,588		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on February 22, 2026. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents was payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

Content

Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on February 22, 2026. During the 3-year vesting period, the award was credited with dividend equivalents that were paid out in shares of common stock at the time the underlying units vested and were issued. The award and credited dividend equivalents was payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

Remarks:

President and Chief Executive Officer