Natural Gas Services Group (NYSE:NGS) Closing Bell Ringing Ceremony, Tuesday, December 17, 2013 at 4 pm EST

NGSG Celebrates at the New York Stock Exchange

Natural Gas Services Group (NYSE:NGS) will commemorate the fifth anniversary of their listing on the New York Stock Exchange and the fifteenth year of their founding by ringing the Closing Bell at the NYSE on Tuesday, December 17, 2013 at 4 pm EST. NGS went public through an IPO on the former American Stock Exchange in 2002 and moved their listing to the NYSE in 2008. Since listing on the NYSE, NGS has grown to be one of the largest providers of gas compression equipment to the industry and market capitalization has grown from approximately $130 million to $350 million presently.

The bell ringing may be seen at: http://new.livestream.com/NYSEeuronext

About Natural Gas Services Group, Inc. (NGS):
NGS is a leading provider of wellhead natural gas compression equipment to the natural gas industry with a primary focus on the non-conventional oil and gas industry, i.e., coal bed methane, tight gas and oil and gas shales. The Company manufactures, fabricates, rents and maintains natural gas compressors that enhance the production of natural gas and oil wells. The Company also designs and sells custom fabricated natural gas compressors and sells flare systems for gas plant and production facilities. NGS is headquartered in Midland, Texas with manufacturing facilities located in Tulsa, Oklahoma and Midland, Texas and service facilities located in major oil and gas producing basins in the U.S.