NATURAL GAS SERVICES GROUP INC

Natural Gas Services Group (NGS) is a premier provider of natural gas and electric compression equipment, technology, and services to the energy industry. Incorporated in December 1998, NGS initially operated as a holding company for subsidiaries manufacturing, operating, and leasing natural gas compression equipment, flares, and related assets, focusing on unconventional natural gas production plays in the U.S., such as coalbed methane, gas shales, and tight gas. The company completed its initial public offering in October 2002, with common stock trading on the American Stock Exchange under "NGS," and later on the New York Stock Exchange starting October 2008. NGS rents, designs, installs, services, and maintains natural gas engine and electric motor drive compressors for oil and gas production and processing facilities. The company also provides aftermarket services, including call-out services for customer-owned equipment and commissioning new units for customers. Headquartered in Southlake, Texas, NGS has administrative offices in Midland, Texas, an engineering facility in Tulsa, Oklahoma, and service facilities in several major U.S. oil and gas producing basins. The primary business and source of revenue and gross profit is derived from renting natural gas engine and electric motor drive compressor units for oil and gas production applications, with a focus on large and medium horsepower applications. Customers, particularly for large and medium horsepower units, are exploration and production (E&P) companies that use NGS compressor units for artificial lift, or "gas lift," applications in unconventional oil wells on single and multi-well pads.