EX-23.1 2 form10k_exhibit23-1.htm EXHIBIT 23.1

form10k_exhibit23-1.htm

EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Natural Gas Services Group, Inc.

Midland, Texas

We consent to the incorporation by reference in the registration statements on Form S-8 (No. 333-147311 and No. 333-110954) and the registration statements (No. 333-119502 and No. 333-122687) on Form S-3, of Natural Gas Services Group, Inc. of our report dated March 2, 2009, relating to our audits of the consolidated financial statements and internal control over financial reporting, which appear in this Annual Report on Form 10-K of Natural Gas Services Group, Inc for the year ended December 31, 2008.

/s/ HEIN & ASSOCIATES LLP

Dallas, Texas

March 2, 2009