OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-31398 NATURAL GAS SERVICES GROUP, INC. (Exact name of registrant as specified in its charter) UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 (State or other jurisdiction of (I.R.S. Employer ...

Natural Gas Services Group, Inc. (NYSE:NGS) Q1 2019 Earnings Conference Call May 9, 2019 11:00 AM ET Company Participants Alicia Dada ??? Investor Relations-Coordinator Steve Taylor ??? Chairman, President and Chief Executive Officer Conference Call Participants Kyle May ??? Capital One Securities Rob Brown ??? Lake Street Capital Richard Dearnley ??? Longport Partners Operator Good morning, ladies and gentlemen, and welcome to the Natural Gas Services Group First Quarter Earnings Call. [Operator Instructio ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K [ x ] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 or [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from________________________to__________________________ Commission file number: 1-31398 NATURAL GAS SERVICES GROUP, INC. (Exact Name of Registrant as Specified in its Chart ...

Natural Gas Services Group, Inc. (NYSE:NGS) Q4 2018 Earnings Conference Call March 14, 2019 11:00 AM ET Company Participants Alicia Dada - Investor Relations Steve Taylor - Chairman, President and Chief Executive Officer Conference Call Participants Rob Brown - Lake Street Capital Tate Sullivan - Maxim Group Kyle May - Capital One Securities Richard Dearnley - Longport Partners Jason Wangler - Imperial Capital Mike Urban - Seaport Global Securities Operator Good morning, ladies and gentlemen and welcome to ...