Release Details

MIDLAND, Texas, Oct. 31 /PRNewswire-FirstCall/ -- Natural Gas Services Group, Inc. (NYSE: NGS), a leading provider of compression equipment and services to the natural gas industry, announces plans to release its 2008 third quarter and nine months financial results at 8:25 AM Central Time on Wednesday, November 5, 2008. In conjunction with the release, the Company has scheduled a conference call Wednesday, November 5, 2008 at 10:00 AM Central Time/11:00 AM Eastern Time.

    What:    Natural Gas Services 2008 Third Quarter and Nine Months Financial
             Results Conference Call

    When:    Wednesday, November 5, 2008 -- 10:00 AM Central Time, 11:00 AM
             Eastern Time

    How:     Live via phone by dialing 800-624-7038. Code: Natural Gas
             Services. Participants to the conference call should call in at
             least 5 minutes prior to the start time.

Stephen Taylor, Chairman, President and CEO of Natural Gas Services Group, Inc. will be leading the call and discussing third quarter and nine months financial results, the status of the Company and the industry.

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.

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

    Or visit the Company's website at www.ngsgi.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-                             10/31/2008
    /CONTACT:  Jim Drewitz, Investor Relations, +1-830-669-2466,
jim@jdcreativeoptions.com, for Natural Gas Services Group, Inc./
    /Web site:  http://www.ngsgi.com /
    (NGS)

CO:  Natural Gas Services Group, Inc.
ST:  Texas
IN:  OIL UTI MAC REA
SU:  CCA

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8845 10/31/2008 10:59 EDT http://www.prnewswire.com