NORTON PIERCE

SEC source: 0001283387-26-000004 · wk-form4_1771968398.xml · derivative · entry 3

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 17,588.4574 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: 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.

F1 · price: 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.

F1 · derivative.exercise_date: 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.

F1 · derivative.expiration_date: 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.

SEC source: 0001283387-26-000004 · wk-form4_1771968398.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,781.906

SEC source: 0001283387-26-000004 · wk-form4_1771968398.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 135,556.3634

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: 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.

SEC source: 0001283387-26-000002 · wk-form4_1771622351.xml · derivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,491

Underlying: Common Stock, par value $0.01 · 60,491 shares

Expires not disclosed

F1 · derivative.exercise_price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 18, 2029. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents. This award represents 50% of the annual Equity Incentive Plan award granted to the reporting person in Febuary 2026.

F1 · price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 18, 2029. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents. This award represents 50% of the annual Equity Incentive Plan award granted to the reporting person in Febuary 2026.

F1 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 18, 2029. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents. This award represents 50% of the annual Equity Incentive Plan award granted to the reporting person in Febuary 2026.

F1 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 18, 2029. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable in one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents. This award represents 50% of the annual Equity Incentive Plan award granted to the reporting person in Febuary 2026.

SEC source: 0001039684-25-000092 · wk-form4_1750191617.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,712.231

F2 · shares: Reflects shares of Issuer's common stock withheld to satisfy withholding taxes due in connection with the Issuance.

SEC source: 0001039684-25-000092 · wk-form4_1750191617.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,719.231

F1 · shares: The reporting person was issued 14 shares of the Issuer's common stock (the Issuance) pursuant to the ONEOK, Inc. 2025 Employee Stock Award Program (2025 ESAP). Following shareholder approval of the 2025 ESAP at the Issuer's 2025 Annual Meeting of Shareholders, the Issuer's Board of Directors approved discretionary awards to eligible employees of one share for each of the 14 share price milestones attained between November 7, 2024 and November 22, 2024, for which no shares were awarded under Issuer's prior employee stock award program due to insufficient shares.

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · derivative · entry 6

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 17,365.39 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · derivative.exercise_date: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · derivative.expiration_date: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · derivative · entry 5

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 30,813.43 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025, for 50% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F2 · price: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025, for 50% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F2 · derivative.exercise_date: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025, for 50% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F2 · derivative.expiration_date: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025, for 50% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · nonDerivative · entry 4

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,700.858

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · nonDerivative · entry 3

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,376.248

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 108,010.858

SEC source: 0001039684-25-000037 · wk-form4_1740519028.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 121,600.288

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on Feb. 23, 2025. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-25-000018 · wk-form4_1740172637.xml · derivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,242

Underlying: Common Stock, par value $0.01 · 30,242 shares

Expires not disclosed

F2 · derivative.exercise_price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on Feb. 19, 2028. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on Feb. 19, 2028. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on Feb. 19, 2028. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on Feb. 19, 2028. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-25-000018 · wk-form4_1740172637.xml · derivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,565

Underlying: Common Stock, par value $0.01 · 70,565 shares

Expires not disclosed

F1 · derivative.exercise_price: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on Feb. 19, 2028, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F1 · price: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on Feb. 19, 2028, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F1 · derivative.exercise_date: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on Feb. 19, 2028, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F1 · derivative.expiration_date: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on Feb. 19, 2028, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

SEC source: 0001039684-24-000394 · wk-form4_1731446637.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,405.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program (ESAP). The ESAP is preauthorized to distribute a set number of shares. The current allocation has been fully awarded with ONEOK achieving the $103 milestone on Nov. 7, 2024. The ESAP will now pause until the 2025 annual shareholder meeting can take place to request additional shares. The meeting typically takes place in May; however, an official meeting date will be set and communicated in the future. We expect the program to resume upon shareholder approval of additional shares.

SEC source: 0001039684-24-000375 · wk-form4_1731100768.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,404.4265

F1 · shares: The reporting person was issued 4 shares of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000352 · wk-form4_1731014657.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,400.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000335 · wk-form4_1729110086.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,399.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000312 · wk-form4_1729023967.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,398.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000288 · wk-form4_1727295878.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,397.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000276 · wk-form4_1726777420.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,396.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000257 · wk-form4_1726691428.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,395.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000230 · wk-form4_1725497084.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,394.4265

F1 · shares: The reporting person was issued 2 shares of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000205 · wk-form4_1725049762.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,392.4265

F1 · shares: The reporting person was issued 2 shares of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program

SEC source: 0001039684-24-000187 · wk-form4_1724272389.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,390.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000170 · wk-form4_1724185199.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,389.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000157 · wk-form4_1723840389.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,388.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000128 · wk-form4_1721334297.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,387.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000101 · wk-form4_1721163307.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,386.4265

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · derivative · entry 6

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 14,201.17 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: Restricted units awarded under the Issuers Equity Incentive Plan. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half herein vested on 6/28/2024. During 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 one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · price: Restricted units awarded under the Issuers Equity Incentive Plan. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half herein vested on 6/28/2024. During 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 one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · derivative.exercise_date: Restricted units awarded under the Issuers Equity Incentive Plan. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half herein vested on 6/28/2024. During 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 one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · derivative.expiration_date: Restricted units awarded under the Issuers Equity Incentive Plan. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half herein vested on 6/28/2024. During 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 one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · derivative · entry 5

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 16,125.02 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on June 28th, 2024. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on June 28th, 2024. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · derivative.exercise_date: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on June 28th, 2024. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F1 · derivative.expiration_date: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on June 28th, 2024. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · nonDerivative · entry 4

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,385.4265

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · nonDerivative · entry 3

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,648.4265

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · price: Restricted units awarded under the Issuers Equity Incentive Plan. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half herein vested on 6/28/2024. During 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 one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,447.2565

SEC source: 0001039684-24-000080 · wk-form4_1719951481.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,559.2565

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on June 28th, 2024. 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 one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001213900-24-046266 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,398.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-045335 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,397.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-037373 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,396.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-029421 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,395.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-025669 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,394.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-024891 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,393.5045

F1 · shares: The reporting person was issued 1 share of the Issuer's common stock pursuant to the Issuer's Employee Stock Award Program.

SEC source: 0001213900-24-016640 · ownership.xml · derivative · entry 5

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,819

Underlying: Common Stock, par value $0.01 · 21,819 shares

Expires not disclosed

F3 · derivative.exercise_price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 17, 2027. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F3 · price: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 17, 2027. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

F2 · derivative.exercise_date: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on February 17, 2027, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F3 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 17, 2027. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001213900-24-016640 · ownership.xml · derivative · entry 4

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,277

Underlying: Common Stock, par value $0.01 · 87,277 shares

Expires not disclosed

F2 · derivative.exercise_price: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on February 17, 2027, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F2 · price: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on February 17, 2027, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F2 · derivative.exercise_date: Performance units awarded under Issuer's Equity Incentive Plan. The award will vest on February 17, 2027, for a percentage (0% to 200%) of performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group, subject to the certification by Executive Compensation Committee of the applicable performance requirements. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and shares are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested performance unit, including additional performance units resulting from dividend equivalents.

F3 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Incentive Plan. The award vests on February 17, 2027. During the 3-year vesting period, the award will be credited with dividend equivalents that will be paid out in shares of common stock at the time the underlying units vest and are issued. The award and credited dividend equivalents will be payable one share of the Issuer's common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001213900-24-016640 · ownership.xml · derivative · entry 3

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $0.01 · 55,454.315 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 2024, for 88% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F1 · price: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 2024, for 88% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F1 · derivative.exercise_date: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 2024, for 88% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

F1 · derivative.expiration_date: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 2024, for 88% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

SEC source: 0001213900-24-016640 · ownership.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,392.5045

SEC source: 0001213900-24-016640 · ownership.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · See Remarks

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,891.5045

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Performance units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 2024, for 88% of the performance units awarded based upon the Issuer's total shareholder return compared to total shareholder return of a selected peer group. 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 shares were issued. The award and credited dividend equivalents were payable one share of the Issuer's common stock for each vested performance unit including additional performance units resulting from dividend equivalents.

SEC source: 0001209191-23-040200 · doc4.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 42,017

F1 · price: The price reported in column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $60.80 to $61.18. The reporting person undertakes to provide ONEOK, Inc., any security holder of ONEOK, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in this footnote to this Form 4.

SEC source: 0001209191-23-040153 · doc4.xml · derivative · entry 3

NORTON PIERCE · CIK 0001283387 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,647

Underlying: Common Stock, par value $0.01 · 13,440 shares

Expires 2023-06-28

F1 · derivative.exercise_date: 23,828 restricted units were awarded to the participant under the Issuers Equity Incentive Plan upon becoming the Issuers President and CEO, effective 6/28/2021. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half will vest on 6/28/2024. During the remaining vesting period, the award will continue to be credited with dividend equivalents that will be paid out in shares of common stock at the time the second half of the underlying units vest and are issued. The award and credited dividend equivalents are payable one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.

SEC source: 0001209191-23-040153 · doc4.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,410

SEC source: 0001209191-23-040153 · doc4.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · President & CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,337

F1 · shares: 23,828 restricted units were awarded to the participant under the Issuers Equity Incentive Plan upon becoming the Issuers President and CEO, effective 6/28/2021. Half of the award, including accumulated dividends, vested 6/28/2023, and the remaining half will vest on 6/28/2024. During the remaining vesting period, the award will continue to be credited with dividend equivalents that will be paid out in shares of common stock at the time the second half of the underlying units vest and are issued. The award and credited dividend equivalents are payable one share of the Issuers common stock for each vested restricted unit, including additional restricted units resulting from dividend equivalents.