United States securities and exchange commission logo November 29, 2021 Stephen C. Taylor Chief Executive Officer NATURAL GAS SERVICES GROUP INC 404 Veterans Airpark Lane, Suite 300 Midland, Texas 79705 Re: NATURAL GAS SERVICES GROUP INC Registration Statement on Form S-3 Filed November 16, 2021 File No. 333-261091 Dear Mr. Taylor: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Please contact Michael Purcell, Law Clerk, at 202-551-5351 with any questions. Sincerely, Division of Corporation Finance Office of Energy & Transportation cc: David Thayer