William A. Lang

Somerset Gas Transmission Co. LLC develops, owns, and operates natural gas pipelines. The firm also operates low pressure pipeline systems in western Pennsylvania that gather production from local production and transport this production into a nearby interstate pipeline. The company was founded in 1997 and is headquartered in Columbus, OH.

Part of Enterprise Products Partners LP, Coast Energy Group, Inc. provides wholesale gas distribution services. Coast Energy Group was acquired by Enterprise Products Partners LP from Cornerstone Propane Partners LP on November 13, 2002 for $12 million.

Cornerstone Propane Partners LP distributes propane for residential and commercial use.

North American Propane, Inc. provides propane gas and heating services. The firm offers services to industrial, commercial, and residential users. The company was founded by Robert R. Kaplan in 2001 and is headquartered Taunton, MA.

Part of GenOn Holdings, Inc., Southern Co. Energy Marketing LP provides energy trading, marketing, physical and financial products, and services. Southern Co. Energy Marketing was acquired by Mirant Corp. (Georgia) from Vastar Resources, Inc. on September 11, 2000 for $250 million.

Vastar Resources, Inc. is one of the largest independent oil and natural gas exploration and production companies in the United States. The company is active in approximately 80 fields in some of the nation's most prolific producing areas, including the Gulf of Mexico, the Gulf Coast, the Oklahoma/Arklatex and the Rockies/Hugoton regions. In addition, the company's drilling rigs are exploring for new reserves both onshore and in the promising shelf and deepwater Gulf of Mexico drilling plays, the latter the site of rising industry activity and excitement.

Part of Tenneco, Inc., Tenneco Gas is a company that specializes in farm machinery and equipment. The company is based in Houston, TX.