Thomas F. Swank

Part of Enron Dissolution Corp., Enron North America Corp gathers, transports, and markets natural gas. The company is based in Houston, TX.

Security Investors LLC (do-business-as Guggenheim Investments) is a registered investment advisor headquartered in New York City. The firm was founded in 1962 and is a subsidiary of Rydex Holdings LLC, ultimately held by Guggenheim Partners LLC. Security Investors provides investment advisory services to separately managed accounts (SMAs) and pooled investment vehicles that are registered as investment companies. The Funds include open-end registered funds, closed-end registered funds, and exchange-traded funds. Their SMA clients may include institutions, such as insurance companies, other financial institutions, pension and profit-sharing plans, US and non-US governmental entities, colleges, hospitals, charitable organizations, endowment funds and foundations, and certain individuals and trusts.

Sempra Energy Trading Corp. trades and markets physical and financial products. The company is headquartered in Stamford, CT.

Rocky Mountain Gas, Inc. is a company based in Sheridan, WY. Rocky Mountain Gas was acquired by Enterra Energy Trust from Crested Corp. on June 01, 2005 for $30 million.

Noble Environmental Power LLC operates as a renewable energy company. It designs, builds, and operates wind parks. The company was founded by Charles C. Hinckley and John Quirke in August 2004 and is headquartered in Centerbrook, CT.

Dynegy, Inc. is a holding company, engages in the production and sale of electric energy, capacity, and ancillary services. It operates through the following segments: PJM, NY/NE, ERCOT, MISO, and CAISO. The PJM segment comprises of power generation facilities located in Ohio, Pennsylvania, Illinois, Virginia, West Virginia, and New Jersey. It offers wholesale electricity and provides transmission planning. The NY/NE segment consists of power generation facilities located in Massachusetts, Connecticut, Maine, and New York. It dispatches power plants to meet system energy and reliability needs and settles physical power deliveries. The ERCOT segment serves the state of Texas over a high-voltage transmission system. The MISO segment includes three power generation facilities in Illinois. The CAISO segment contains two power generation facilities located in California. The company was founded in 1984 and is headquartered in Houston, TX.

El Paso Marketing LP (El Paso Merchant Energy) provides wholesale trading of natural gas, crude oil, electricity and other commodities. It also markets asset-based commodities. The firm also sells the unit's petroleum refining, coal mining, chemical production and LNG transportation operations. The company is headquartered in Houston, TX.