Release Details

MIDLAND, Texas, April 28 /PRNewswire-FirstCall/ -- Natural Gas Services Group, Inc. (NYSE: NGS), a leading provider of gas compression equipment and services to the natural gas industry, announces the following conference call information for their first quarter 2009 earnings release:

-- Earnings Release: Friday, May 8, 2009 before market opens

Public distribution will be through PR Newswire and the Natural Gas Services Group, Inc. website at www.ngsgi.com.

-- Conference Call: Friday, May 8, 2009 at 10:00 a.m. Central

To avoid delays, pre-registration to receive your access code for this conference call is recommended and available at https://secure.confertel.net/tsregister.asp?course=156701 . Registrants may add this conference call to their calendar and will then receive an email reminder of the scheduled event 24 hours in advance. You may also call (866) 930-4500 should you prefer to pre-register and receive your access code via telephone.

All attendees and participants should arrange to register early to avoid conference date delays and should plan to call in at least 5 minutes prior to the start time.

-- Conference Call Replay

For those unable to attend or participate a replay of the conference call will be available within 2 hours on the NGS website at www.ngsgi.com and will remain available for 30 days.

Stephen Taylor, Chairman, President and CEO of Natural Gas Services Group, Inc. will be leading the call and discussing first quarter 2009 financial results.

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, sells and maintains natural gas compressors and flare systems for gas production and plant facilities. NGS is headquartered in Midland, Texas with fabrication 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 visit www.ngsgi.com or contact Kimberly Huckaba, Investor Relations, at 432-262-2700 or kim.huckaba@ngsgi.com

SOURCE  Natural Gas Services Group, Inc.

    -0-                           04/28/2009
    /CONTACT:  Kimberly Huckaba, Investor Relations, +1-432-262-2700,
kim.huckaba@ngsgi.com/
    /Web Site:  http://www.ngsgi.com /
    (NGS)

CO:  Natural Gas Services Group, Inc.

ST:  Texas
IN:  OIL GAS
SU:  CCA

PR
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3099 04/28/2009 18:10 EDT http://www.prnewswire.com