Constellation Newenergy

CenterPoint Energy is a domestic energy delivery company that engages in electricity transmission and distribution, natural gas distribution and sales, and interstate pipeline and gathering operations. The company provides natural gas service to more than 2 million customers and both electricity and gas service to a combined customer base of more than 4 million. In addition to providing utilities for the Houston metropolitan area, the company serves customers located throughout the states of Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma and Texas. The company s pipelines division owns and operates two interstate pipelines, gathers natural gas, provides maintenance and technical services to third-party clients and installs the company s remote wellhead monitoring and measuring product, ServiceStar. David M. McClanahan has been the chief executive officer of CenterPoint Energy for more than four years. He has been with the utility company for over 34 years. McClanahan earned a BS degree from the University of Texas-El Paso, and a MBA from the University of Houston. An employer of more than 9,000 people, CenterPoint Energy is headquartered in Houston.

Southern Natural Gas, a subsidiary of El Paso Corporation, transports more than 3 billion cubic feet of natural gas per day during peak periods through 8,000 miles of pipeline within the Southeast region of the United States. The company also owns and operates the Elba Island liquefied natural gas regasification facility in the state of Georgia, with approximately 4 billion cubic feet of storage capacity and over 440 million cubic feet per day of send-out capacity. Its parent company, El Paso Corporation own one of North America s largest interstate natural gas pipeline systems, approximately 42,000 miles long, that transports more than a quarter of the natural gas consumed in the United States each day. The parent company provides natural gas and related energy products. El Paso Corporation is organized around two core businesses that include pipelines and exploration and production. The parent company sells power-to-power transmission and distribution companies owned by local governments. Some of its pipeline assets are owned by El Paso Pipeline Partners. The parent company offers natural gas transmission services to a range of customers, including natural gas producers, marketers and end-users, as well as other natural gas transmission, distribution and electric generation companies. El Paso Corporation s Exploration & Production Company finds, develops and produces natural gas, oil and natural gas liquids.

Calpine Corporation provides the United States economy with greater and cleaner sources of electricity. The company specializes in the production of geothermal power and has a program of developing and building natural gas-fired energy centers. At The Geysers, about 100 miles northeast of San Francisco, the company harnesses naturally heated steam from the earth to create electrical power. Calpine s renewable green power is available to consumers throughout California. The company s client list includes Alliant Energy, Aquilla Merchant Services, Arkansas Electric Cooperative, BP Energy Company, California Department of Water Resources, Citgo Petroleum, Pacific Gas and Electric Company, Natural Gas Pipeline Company of America and the New York Power Authority. Calpine Corporation is headquartered in San Jose, Calif.