(OKE)

Role: Officer
Signature: /s/ Sarah M. Rechter, Attorney-in-Fact for Walter S. Hulse III
Issuer symbol: OKE
Transactions as of: 22 Feb 2026
Net transactions value: -$301,672
Form type: 4
Filing time: 24 Feb 2026, 16:27:03 UTC
Previous filing: 20 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HULSE WALTER S III	Officer	100 WEST FIFTH STREET, TULSA	/s/ Sarah M. Rechter, Attorney-in-Fact for Walter S. Hulse III	24 Feb 2026	0001634099

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		+7,739	+4.7%		172,439	22 Feb 2026	Direct	F1
transaction	OKE	Common Stock, par value $0.01	Tax liability	$301,672	-3,454	-2%	$87.33	168,985	22 Feb 2026	Direct
holding	OKE	Common Stock, par value $0.01						25,000	22 Feb 2026	Hulse 2006 Rev Trust

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		-7,739	-100%		0	22 Feb 2026	Common Stock, par value $0.01	7,739		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:

Chief Financial Officer, Treasurer and Executive Vice President, Investor Relations and Corporate Development