Release Details

                             Third Year in a Row
              Company Was No. 48 Overall; No. 6 In Sales Growth

MIDLAND, Texas, Nov. 29 /PRNewswire-FirstCall/ -- Natural Gas Services Group, Inc. (Amex: NGS), a leading provider of gas compression equipment and services to the natural gas industry, announces that it has been named to the Forbes magazine list of America's 200 Best Small Companies for the third consecutive year. The Company was ranked in the Top 50 at number 48 in 2007 and was ranked No. 6 in 5-year average sales growth. NGS was also identified as one of 10 companies on their 'Under the Radar' list, which is defined as 'a solid performer with two or fewer analysts on their quarterly call'.

Forbes judged candidates with annual revenues of between $5 million -- $750 million and share prices above $5, with rankings based on return on equity, as well as sustained sales and net profit growth over 12-month and five-year periods. The complete list is available at http://www.forbes.com/lists/2007/23/biz_07200best_The-200-Best-Small-Companies_Rank_2.html (To view this web page, copy and paste the URL into your browser.)

Stephen Taylor, Chairman, President and CEO of Natural Gas Services Group, Inc. said, "We are very pleased to again be highly ranked by Forbes in their 'Top 200' listing of best small companies in the US. Being on their list for the third year in a row attests to our consistently strong performance, both operationally and financially."

About Natural Gas Services Group, Inc.

NGS is a leading provider of small to medium horsepower, wellhead compression equipment to the natural gas industry with a primary focus on the non-conventional gas industry, i.e., coalbed methane, gas shales and tight gas. The Company manufactures, fabricates, rents and maintains natural gas compressors that enhance the production of natural gas wells. The Company also designs and sells custom fabricated natural gas compressors to particular customer specifications and sells flare systems for gas plant and production facilities. NGS is headquartered in Midland, Texas with manufacturing facilities located in Tulsa, Oklahoma, Lewiston, Michigan and Midland, Texas and service facilities located in major gas producing basins in the U.S.

    Or visit the Company's website at www.ngsgi.com

    For More Information, Contact: Jim Drewitz, Investor Relations
                                   830-669-2466 jim@jdcreativeoptions.com

Certain statements contained herein are "forward looking" statements as such term is defined in the Private Securities Litigation Reform Act of 1995. Because statements include risks and uncertainties, actual results may differ materially from those expressed or implied and include, but are not limited to, those discussed in filings by the Company with the Securities and Exchange Commission.

SOURCE  Natural Gas Services Group, Inc.
    -0-                             11/29/2007
    /CONTACT:  Jim Drewitz, Investor Relations, +1-830-669-2466,
jim@jdcreativeoptions.com /
    /Web site:  http://www.ngsgi.com /
    (NGS)

CO:  Natural Gas Services Group, Inc.; Forbes
ST:  Texas
IN:  OIL FIN UTI
SU:  AWD

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4583 11/29/2007 09:25 EST http://www.prnewswire.com