SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* McCormick Joseph L (Last) (First) (Middle) 15 E. 5TH STREET (Street) TULSA OK 74103 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol ONE Gas, Inc. [ OGS ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) See Remarks
	3. Date of Earliest Transaction (Month/Day/Year) 02/22/2016
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common stock, par value $0.01	02/22/2016		M		15,806(1)(2)	A	$58.36(1)(2)	31,593	D
Common stock, par value $0.01	02/22/2016		F		5,342(1)(2)	D	$58.36(1)(2)	26,251	D
Common stock, par value $0.01	02/22/2016		M		2,901(3)	A	$58.36(3)	29,152	D
Common stock, par value $0.01	02/22/2016		F		999(3)	D	$58.36(3)	28,153	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Performance Units 2013	(1)(2)	02/22/2016		M			15,806	(1)(2)	(1)(2)	Common stock, par value $0.01	15,806	$58.36	0	D
Restricted Units 2013	(3)	02/22/2016		M			2,901	(3)	(3)	Common stock, par value $0.01	2,901	$58.36	0	D

Explanation of Responses:

1. On January 31, 2014, ONEOK, Inc. ("ONEOK") effected the distribution of 100% of the outstanding shares of common stock of ONE Gas, Inc. ("ONE Gas") held by ONEOK to ONEOK's shareholders (the "Distribution"). In connection with the Distribution, performance units were awarded under ONE Gas' Equity Compensation Plan, pursuant to that certain Employee Matters Agreement by and between ONEOK and ONE Gas, dated January 14, 2014 (the "Employee Matters Agreement"). The award vested on February 20, 2016, and was certified by the Executive Compensation Committee of the Board of Directors on February 22, 2016. A portion of the award, or 11,943 performance units, vested in an amount equal to 177% of the performance units awarded based upon ONE Gas' total shareholder return compared to total shareholder return of a selected peer group plus accrued dividends of 503.48 shares.

2. (Continued from Footnote 1) The remainder of the award vested in an amount equal to 200% of the performance units awarded based upon ONEOK's total shareholder return compared to total shareholder return of the ONEOK referenced peer group over the performance period from the original grant date to January 31, 2014, plus accrued dividends of 262.84 shares. The award was payable one share of ONE Gas' common stock for each vested performance unit and accrued dividends.

3. Restricted units awarded under ONE Gas' Equity Compensation Plan, pursuant to the Employee Matters Agreement entered into in connection with the Distribution. The award vested on February 20, 2016. The award was payable one share of ONE Gas' common stock for each vested restricted unit and accrued dividends of 140.70 shares.

Remarks:

Senior Vice President, General Counsel and Assistant Secretary

	/s/ Brian K. Shore, Attorney-in-Fact for Joseph L. McCormick	02/23/2016
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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