Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Taylor Stephen Charles
   2. Issuer Name and Ticker or Trading Symbol
NATURAL GAS SERVICES GROUP INC [ngs] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Executive Officer
(Last)
(First)
(Middle)
2911 SOUTH COUNTY ROAD 1260		 3. Date of Earliest Transaction (Month/Day/Year)
03/15/2018
(Street)

MIDLAND, TX 79706		 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 03/15/2018   A   56,749 (4) A $ 24.55 316,662 D  
Common Stock               21,139 I By Rabbi Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
Restricted Stock Units (1) 03/15/2018   A   27,951     (2)   (2) Common Stock 27,951 $ 0 27,951 D  
Restricted Stock Units (3)               (3)   (3) Common Stock 42,279   42,279 D  
Employee Stock Option $ 17.51             09/10/2009 09/10/2018 Common Stock 25,000   25,000 D  
Employee Stock Option $ 9.95             01/28/2010 01/28/2019 Common Stock 30,000   30,000 D  
Employee Stock Option $ 7.84             03/17/2010 03/16/2019 Common Stock 23,852   23,852 D  
Employee Stock Option $ 19.9             01/18/2011 01/17/2020 Common Stock 30,000   30,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Taylor Stephen Charles
2911 SOUTH COUNTY ROAD 1260
MIDLAND, TX 79706		   X     Chief Executive Officer  

Signatures

 Stephen C. Taylor   03/19/2018
**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) Not Applicable. The acquisition reflects an award of Restricted Stock Units ("RSU") pursuant to the Company's 2009 Restricted Stock/Unit Plan, as amended. Each RSU represents the right to receive one share of the Company's common stock upon vesting without payment.
(2) Not Applicable. The RSU award vests in one-third annual increments beginning upon the first anniversary of the grant date, subject to the reporting person's continued employment with the Company and subject to accelerated vesting upon death or disability of the reporting person, or upon certain change in control events.
(3) Not Applicable. Each Restricted Stock Unit represents a right to receive one share of Company common stock upon vesting without payment.
(4) The acquisition reflects an award of Restricted Stock pursuant to the Company's 2009 Restricted Stock/Unit Plan, as amended. The award vests in one-third annual increments beginning upon the first anniversary of the grant date, subject to the reporting person's continued employment with the Company and subject to accelerated vesting upon death or disability of the reporting person, or upon certain change in control events.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.