Scott D. Schingen - 17 Feb 2024 Form 4/A Insider Report for ONEOK INC /NEW/ (OKE)

Footnote F1

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.

Footnote F2

Restricted units awarded under the Issuer's Equity Incentive Plan. The award vested on February 17, 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.

Footnote F3

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.

Footnote F4

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.