<SEC-DOCUMENT>0001084991-23-000072-index.html : 20230607 <SEC-HEADER>0001084991-23-000072.hdr.sgml : 20230607 <ACCEPTANCE-DATETIME>20230607151330 ACCESSION NUMBER: 0001084991-23-000072 CONFORMED SUBMISSION TYPE: DEFA14A PUBLIC DOCUMENT COUNT: 2 FILED AS OF DATE: 20230607 DATE AS OF CHANGE: 20230607 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: 23998792 BUSINESS ADDRESS: STREET 1: 404 VETERANS AIRPARK LANE STREET 2: SUITE 300 CITY: MIDLAND STATE: TX ZIP: 79705 BUSINESS PHONE: (432) 262-2700 MAIL ADDRESS: STREET 1: 404 VETERANS AIRPARK LANE STREET 2: SUITE 300 CITY: MIDLAND STATE: TX ZIP: 79705 </SEC-HEADER> <DOCUMENT> <TYPE>DEFA14A <SEQUENCE>1 <FILENAME>defa14aissletter2023.htm <DESCRIPTION>DEFA14A <TEXT> Document 1 - file: defa14aissletter2023.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>logo1a.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: logo1a.jpg
</DOCUMENT> </SEC-DOCUMENT>