FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * McCormick Joseph L   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 (Last) (First) (Middle) 15 E. 5TH STREET 3. Date of Earliest Transaction (Month/Day/Year) 02/22/2016 (Street) TULSA, OK 74103 4. If Amendment, Date 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 (City) (State) (Zip) 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

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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 Underlying Securities (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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
McCormick Joseph L 15 E. 5TH STREET TULSA, OK 74103			See Remarks

Signatures

/s/ Brian K. Shore, Attorney-in-Fact for Joseph L. McCormick		02/23/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(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

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