OGS

SEC source: 0000899243-18-004856 · doc4.xml · nonDerivative · entry 2

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 193,886

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 3,697 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 3,697 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004856 · doc4.xml · nonDerivative · entry 1

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,947

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 3,697 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 3,697 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004897 · doc4.xml · derivative · entry 9

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,247

Underlying: Common stock, par value $0.01 · 1,247 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.exercise_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.expiration_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

SEC source: 0000899243-18-004897 · doc4.xml · derivative · entry 8

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,988

Underlying: Common stock, par value $0.01 · 4,988 shares

Expires not disclosed

F3 · derivative.exercise_price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.exercise_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.expiration_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

SEC source: 0000899243-18-004897 · doc4.xml · derivative · entry 6

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 7,725 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.exercise_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.expiration_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004897 · doc4.xml · nonDerivative · entry 2

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,506

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004897 · doc4.xml · nonDerivative · entry 1

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,882

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004950 · doc4.xml · derivative · entry 8

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 836

Underlying: Common stock, par value $0.01 · 836 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.exercise_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.expiration_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

SEC source: 0000899243-18-004950 · doc4.xml · derivative · entry 7

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,345

Underlying: Common stock, par value $0.01 · 3,345 shares

Expires not disclosed

F3 · derivative.exercise_price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.exercise_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.expiration_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

SEC source: 0000899243-18-004950 · doc4.xml · derivative · entry 5

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 2,725 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.exercise_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.expiration_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004950 · doc4.xml · nonDerivative · entry 2

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,457

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004950 · doc4.xml · nonDerivative · entry 1

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,070

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 417 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004945 · doc4.xml · derivative · entry 9

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,100

Underlying: Common stock, par value $0.01 · 1,100 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · price: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.exercise_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

F4 · derivative.expiration_date: Restricted units awarded under the Issuer's Equity Compensation Plan. The award vests on February 13, 2021. 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 and dividend equivalent.

SEC source: 0000899243-18-004945 · doc4.xml · derivative · entry 8

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,401

Underlying: Common stock, par value $0.01 · 4,401 shares

Expires not disclosed

F3 · derivative.exercise_price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · price: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.exercise_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

F3 · derivative.expiration_date: Performance units awarded under the Issuer's Equity Compensation Plan. The award will vest on February 13, 2021, for a percentage (0% to 200%) of the performance units awarded based upon the Issuer's total shareholder return compared to total stockholder return of a selected peer group. 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 and dividend equivalent.

SEC source: 0000899243-18-004945 · doc4.xml · derivative · entry 6

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 5,800 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.exercise_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · derivative.expiration_date: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004945 · doc4.xml · nonDerivative · entry 2

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,762

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-004945 · doc4.xml · nonDerivative · entry 1

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,294

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

SEC source: 0000899243-18-006969 · doc4a.xml · nonDerivative · entry 2

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,188

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 1,073 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006969 · doc4a.xml · nonDerivative · entry 1

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 122,562

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 1,073 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006970 · doc4a.xml · nonDerivative · entry 2

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 111,587

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 4,919 shares of ONE Gas common stock held by the 401(k) Plan.

SEC source: 0000899243-18-006970 · doc4a.xml · nonDerivative · entry 1

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,963

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 1,182 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 4,919 shares of ONE Gas common stock held by the 401(k) Plan.

SEC source: 0000899243-18-006968 · doc4a.xml · nonDerivative · entry 2

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,874

F1 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 2,887 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006968 · doc4a.xml · nonDerivative · entry 1

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,406

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 · shares: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F1 · price: Performance units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018, and was certified by the Executive Compensation Committee of the Board of Directors on February 19, 2018. The award vested in an amount equal to 200% of the performance units awarded based upon Issuer's total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 888 shares. The award was payable one share of Issuer's common stock for each vested performance unit and accrued dividends.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 2,887 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-004941 · doc4.xml · derivative · entry 6

McAnnally Robert S. · CIK 0001636734 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,450 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

SEC source: 0000899243-18-004941 · doc4.xml · nonDerivative · entry 4

McAnnally Robert S. · CIK 0001636734 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,565

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

SEC source: 0000899243-18-004941 · doc4.xml · nonDerivative · entry 3

McAnnally Robert S. · CIK 0001636734 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,319

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 108 shares.

SEC source: 0000899243-18-004869 · doc4.xml · derivative · entry 7

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,925 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004869 · doc4.xml · nonDerivative · entry 4

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,356

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004869 · doc4.xml · nonDerivative · entry 3

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,334

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004856 · doc4.xml · derivative · entry 6

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 6,050 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

SEC source: 0000899243-18-004856 · doc4.xml · nonDerivative · entry 4

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 197,489

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

SEC source: 0000899243-18-004856 · doc4.xml · nonDerivative · entry 3

NORTON PIERCE · CIK 0001283387 · Director · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 200,399

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 463 shares.

SEC source: 0000899243-18-004897 · doc4.xml · derivative · entry 7

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,925 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004897 · doc4.xml · nonDerivative · entry 4

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,609

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004897 · doc4.xml · nonDerivative · entry 3

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,578

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

SEC source: 0000899243-18-004950 · doc4.xml · derivative · entry 6

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 900 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

SEC source: 0000899243-18-004950 · doc4.xml · nonDerivative · entry 4

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,947

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

SEC source: 0000899243-18-004950 · doc4.xml · nonDerivative · entry 3

Bender Mark A. · CIK 0001657393 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,431

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 74 shares.

SEC source: 0000899243-18-004945 · doc4.xml · derivative · entry 7

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common stock, par value $0.01 · 1,450 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 Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · derivative.exercise_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · derivative.expiration_date: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

SEC source: 0000899243-18-004945 · doc4.xml · nonDerivative · entry 4

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,565

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

SEC source: 0000899243-18-004945 · doc4.xml · nonDerivative · entry 3

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,323

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

SEC source: 0000899243-18-006969 · doc4a.xml · nonDerivative · entry 4

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 116,282

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 1,073 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006969 · doc4a.xml · nonDerivative · entry 3

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 117,260

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 1,073 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006970 · doc4a.xml · nonDerivative · entry 4

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,690

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 4,919 shares of ONE Gas common stock held by the 401(k) Plan.

SEC source: 0000899243-18-006970 · doc4a.xml · nonDerivative · entry 3

DINAN CURTIS · CIK 0001278745 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 113,659

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 147 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 4,919 shares of ONE Gas common stock held by the 401(k) Plan.

SEC source: 0000899243-18-006968 · doc4a.xml · nonDerivative · entry 4

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,677

F2 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 2,887 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-18-006968 · doc4a.xml · nonDerivative · entry 3

McCormick Joseph L · CIK 0001595607 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,435

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 · shares: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F2 · price: Restricted units awarded under Issuer's Equity Compensation Plan. The award vested on February 17, 2018. The award was payable one share of Issuer's common stock for each vested restricted unit and accrued dividends of 111 shares.

F3 · balance_after: This amendment is being filed to correct an administrative error in the number of shares of ONE Gas common stock reported in lines 1-4 of Column 5 of Table I in the Form 4 filed on February 21, 2018. The original balances in lines 1-4 of Column 5 of Table I inadvertently included 2,887 shares of ONE Gas common stock held by the 401(k) Plan and the equivalent of one fractional share.

SEC source: 0000899243-17-014720 · doc4.xml · nonDerivative · entry 1

McAnnally Robert S. · CIK 0001636734 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 467

F1 · kind: Share acquired under Issuer's Employee Stock Award Program.

SEC source: 0000899243-17-014702 · doc4.xml · nonDerivative · entry 1

YAEGER DOUGLAS H · CIK 0001182558 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · Douglas H. Yaeger, Revocable Trust

Disclosed balance after: 18,118

F1 · kind: Annual stock retainer shares are issued under the Issuer's Equity Compensation Plan.

F2 · ownership.nature: The reporting person is the trustee of the Douglas H. Yaeger, Revocable Trust. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

SEC source: 0000899243-17-014712 · doc4.xml · nonDerivative · entry 1

Lawhorn Caron A · CIK 0001302089 · See Remarks

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 105,523

F1 · kind: Share acquired under Issuer's Employee Stock Award Program.