Release Details

MIDLAND, Texas, May 1 /PRNewswire-FirstCall/ -- Natural Gas Services Group, Inc. (Amex: NGS), a leading provider of gas compression equipment and services to the natural gas industry, plans to release its 2008 first quarter financial results at 8:25 AM Central Time on Tuesday, May 6, 2008. In conjunction with the release, the Company has scheduled a conference call Tuesday, May 6, 2008 at 10:00 AM Central Daylight Saving Time/11:00 AM Eastern Daylight Saving Time.

    What: Natural Gas Services 2008 First Quarter Financial Results Conference
          Call

    When: Tuesday, May 6, 2008 at 10:00 AM Central Daylight Saving
          Time/11:00 AM Eastern Daylight Saving 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 first quarter financial results and the status of the Company.

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-                             05/01/2008
    /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
SU:  CCA

LG-JT
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5628 05/01/2008 09:46 EDT http://www.prnewswire.com