Stephen A. Snider

Spire Alabama, Inc. engages in the purchase, retail distribution, and sale of natural gas principally in central and northern Alabama. It offers services to commercial and industrial customers. The company was founded in 1948 and is headquartered in Birmingham, AL.

Energen Corp. is an independent oil and natural gas company, which engages in the acquisition, development, exploration, and exploitation of onshore oil and natural gas reserves. Its portfolio includes the Permian Basin in West Texas. The company was founded on October 26, 1978 and is headquartered in Montgomery, AL.

T-3 Energy Services, Inc. designs, manufactures, and repairs custom-machined well control performance parts and components for oil and gas industry installations. Its products include valves, chokes, actuators, blow out preventers, manifolds, and wellhead equipment. The company was founded in 1989 and is headquartered in Houston, TX.

Universal Compression Holdings, Inc., provides natural gas compression services including sales, operations, maintenance, fabrication services, products to the natural gas industry, both domestically and internationally. The Company operates in four business segments, domestic contract compression, international contract compression, fabrication and aftermarket services.The core business, contract compression, involves providing compression equipment and service to customers. Their fabrication business involves the design, engineering and assembly of natural gas compressors for sale to third parties. Their aftermarket services business sells parts and components, and provides maintenance and operations services. And its Headquarter situated at Houston, Texas.

Dresser-Rand Group, Inc. manufactures rotating equipments for oil, gas, petrochemical, and process industries. It is engaged in the design, manufacture, sale and servicing of centrifugal and reciprocating compressors, gas and steam turbines, gas expanders and engines and associated control panels. The firm operates through two segments: New Units and Aftermarket Parts and Services. The New Units segment manufactures highly-engineered turbo and reciprocating compression equipment and steam turbines. This segment includes engineering, manufacturing, project management, packaging, testing, sales and administrative support. The Aftermarket Parts and Services consist of support solutions for the existing population of installed equipment and the operation and maintenance of several types of energy plants. The segment includes engineering, manufacturing, project management, installation, commissioning, start-up and other field services, repairs, overhauls, refurbishment, sales and administrative support. The company was founded in October 2004 and is headquartered in Houston, TX.

Universal Compression Partners LP provides natural gas contract compression services to customers nationwide. Its services include designing, installing, operating, repairing, and maintaining compression equipment. Following the company's IPO, it will operate a fleet of compressor units, comprising more than 331,000 horsepower, or some 17% of parent and global compression. It is located in Houston, TX.