<SEC-DOCUMENT>0000354204-23-001420-index.html : 20230210 <SEC-HEADER>0000354204-23-001420.hdr.sgml : 20230210 <ACCEPTANCE-DATETIME>20230210144224 ACCESSION NUMBER: 0000354204-23-001420 CONFORMED SUBMISSION TYPE: SC 13G/A PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20230210 DATE AS OF CHANGE: 20230210 SUBJECT COMPANY: 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: SC 13G/A SEC ACT: 1934 Act SEC FILE NUMBER: 005-78868 FILM NUMBER: 23610779 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 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: DIMENSIONAL FUND ADVISORS LP CENTRAL INDEX KEY: 0000354204 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 222370029 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13G/A BUSINESS ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 BUSINESS PHONE: (512) 306-7400 MAIL ADDRESS: STREET 1: 6300 BEE CAVE ROAD STREET 2: BUILDING ONE CITY: AUSTIN STATE: TX ZIP: 78746 FORMER COMPANY: FORMER CONFORMED NAME: DIMENSIONAL FUND ADVISORS INC DATE OF NAME CHANGE: 19920929 </SEC-HEADER> <DOCUMENT> <TYPE>SC 13G/A <SEQUENCE>1 <FILENAME>SEC13G_Filing.htm <DESCRIPTION>SEC SCHEDULE 13G <TEXT> Document 1 - file: SEC13G_Filing.htm
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