<SEC-DOCUMENT>0001084991-17-000048-index.html : 20170612
<SEC-HEADER>0001084991-17-000048.hdr.sgml : 20170612
<ACCEPTANCE-DATETIME>20170612092324
ACCESSION NUMBER:		0001084991-17-000048
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20170612
DATE AS OF CHANGE:		20170612
EFFECTIVENESS DATE:		20170612

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATURAL GAS SERVICES GROUP INC
		CENTRAL INDEX KEY:			0001084991
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				752811855
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31398
		FILM NUMBER:		17904921

	BUSINESS ADDRESS:	
		STREET 1:		508 WEST WALL STREET
		STREET 2:		SUITE 550
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
		BUSINESS PHONE:		432-262-2700

	MAIL ADDRESS:	
		STREET 1:		508 WEST WALL STREET
		STREET 2:		SUITE 550
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>defa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: defa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>ngslogo1a19.jpg
<TEXT>
Document 2 - file: ngslogo1a19.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ngslogo1a20.jpg
<TEXT>
Document 3 - file: ngslogo1a20.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>ngslogo1a21.jpg
<TEXT>
Document 4 - file: ngslogo1a21.jpg

</DOCUMENT>
</SEC-DOCUMENT>