EnCana Corporation (EnCana) is a natural gas producer. The Company is one of the holders of natural gas and oil resource lands onshore North America. EnCana's other operations include the transportation and marketing of crude oil, natural gas and natural gas liquids, as well as the... more

Entergy Corporation is an integrated energy company engaged primarily in electric power production and retail distribution operations. Entergy owns and operates power plants with approximately 30,000 megawatts of electric generating capacity, and it is the second-largest nuclear power... more

Based in Kansas City, Mo., Aquila operates electricity and natural gas distribution utilities serving 1.3 million customers in seven U.S. states. The company also owns and operates power generation assets.

Founded in 1997 to change the way power is made, Green Mountain Energy Company is one of the nation's leading retail providers of cleaner electricity products, offering residential, business, institutional and governmental customers the choice to support cleaner electricity generated from... more

The Williams Companies, Inc. (Williams) is a natural gas company. The Company primarily finds, produces, gathers, processes and transports natural gas. Its operations are concentrated in the Pacific Northwest, Rocky Mountains, Gulf Coast and the Eastern Seaboard. Its activities are... more

NRG Energy, Inc. (NRG) is a wholesale power generation company. NRG is engaged in the ownership, development, construction and operation of power generation facilities, the transacting in and trading of fuel and transportation services, and the trading of energy, capacity and related... more

Dynegy Inc. (Dynegy) is engaged in the production and selling of electric energy, capacity and ancillary services from the fleet of 29 operating power plants in 13 states totaling nearly 20,000 megawatt of generating capacity. The Company conducts its operations through its subsidiary,... more

Mirant is a competitive energy company that produces and sells electricity in the United States, the Caribbean, and the Philippines. Mirant owns or leases approximately 13,900 megawatts of electric generating capacity globally. The company operates an asset management and energy marketing... more

KeySpan owns and operates more than 6,000 MW of electric power generation on Long Island and in New York City, and provides management of the electric transmission and distribution (T&D) system, and customer services, to the Long Island Power Authority's 1.1 million customers. The... more

Ontario Power Generation Inc. is an Ontario-based electricity generation company whose principal business is the generation and sale of electricity in Ontario. The company's focus is on the efficient production and sale of electricity from its generation assets, while operating in a safe,... more

Public Service Enterprise Group Incorporated (PSEG) is an energy company. The wholly owned subsidiaries of the Company are PSEG Power LLC (Power), Public Service Electric and Gas Company (PSE&G), PSEG Energy Holdings L.L.C. (Energy Holdings) and PSEG Services Corporation (Services). The... more

DTE Energy Company is an energy company. The Company’s utility operations consist primarily of The Detroit Edison Company (Detroit Edison), which is a direct wholly owned subsidiary of DTE Energy Company and Michigan Consolidated Gas Company (MichCon), which is an indirect wholly owned... more

Powergen is an anglo-american integrated energy company. In the it UK Powergen is a leading UK supplier of electricity, gas and telephone services to domestic and small business customers. With 3.2 million customer accounts it is the fastest growing of the major suppliers. In the UK,... more

Renewable Energy Corporation ASA (REC) was established in 1996 and has quickly become the world's leading integrated solar company. Today, REC is the world's largest producer of polysilicon and wafers for PV applications. REC is involved in all steps of the value chain, from production of... more

TransAlta Corporation (TransAlta) is a wholesale power generator and marketer focused on the western regions of Canada and the United States. The Company owns, operates and manages a contracted and geographically diversified portfolio of assets, and has capability in generation fuels,... more

TXU Energy is the largest electric retailer based in Texas. It provides electricity and energy-related services in Texas and across the US, and is part of TXU, one of the largest energy companies in the world.

Ameren Corporation (Ameren) is a holding Company. Ameren’s subsidiaries include Union Electric Company, Central Illinois Public Service Company, Ameren Energy Generating Company, CILCORP Inc. and Illinois Power Company. These subsidiaries operate rate-regulated electric generation,... more

Allegheny Energy, Inc. (Allegheny) is a diversified utility holding company that operates through its directly and indirectly owned subsidiaries. The Company is an integrated energy business that owns and operates electric generation facilities and delivers electric services to customers... more

NUI Utilities, Inc. is a wholly-owned subsidiary of NUI Corporation. NUI Corporation, based in Bedminster, NJ, provides energy, telecommunications and business services. NUI Corporation operates four natural gas utilities, and businesses involved in natural gas storage and pipeline... more

Scottish and Southern Energy is one of the U.K.'s largest energy companies. It is involved in the generation, transmission, distribution and supply of electricity to industrial, commercial and domestic customers; the storage and supply of gas; electrical and utility contracting; domestic... more

Avista Corporation (Avista Corp.) is an energy company engaged in the generation, transmission and distribution of energy as well as other energy-related businesses. The Company has three business segments: Avista Utilities, Energy Marketing and Resource Management, Advantage IQ, Inc.... more

Electrabel is a leading European energy company and number one on the Benelux market. It is part of SUEZ, an international industrial and services group, which designs sustainable and innovative solutions in the management of public utilities as a partner of public authorities, businesses... more

Allegheny Energy is an integrated energy company with a balanced portfolio of businesses, including: Allegheny Energy Supply Company, LLC, which owns and operates electric generating facilities in the Mid-Atlantic and Midwestern regions of the United States; and Allegheny Power, which... more

Select Energy was established in 1997 as the competitive energy marketing subsidiary of Northeast Utilities (NYSE: NU). Based in Berlin, Connecticut, the company employs over 400 people and supplies electricity, natural gas, and renewable products to businesses in 12 states from Maine to... more

TXU is a global leader in electric and natural gas services, merchant trading, energy marketing, energy delivery, telecommunications, and other energy-related services. TXU is one of the largest energy companies in the world with more than $28 billion of annual revenue and $43 billion of... more

Based in Kansas City, Missouri, UtiliCorp United is an international electric and gas company with energy customers and operations across the U.S. and in Canada, the United Kingdom, New Zealand and Australia.

Coral Energy, an affiliate of Shell, operates as part of the global Shell Trading network in North America and provides a comprehensive portfolio of energy-related products and services associated with wholesale natural gas and power marketing and trading. Coral acts as the marketer of... more

SolArc was founded in 1991, by three Andersen Consulting (now Accenture) colleagues offering consulting services and customized software solutions to the energy and insurance industries. In 1994, SolArc revolutionized the liquid hydrocarbon trading industry with SolArc RightAngle, which... more

PPL Electric Utilities Corporation (PPL Electric) is a subsidiary of PPL Corporation (PPL), an energy and utility holding company. PPL Electric is a regulated public utility that provides electricity delivery service in its service territory in Pennsylvania, and provides electricity... more

Genscape, Inc., with operations in the US and Europe, is the world's only provider of critical, real-time energy generation and transmission data. Utilizing proprietary algorithms, Genscape's technology provides accurate, real-time information about power plant usage, start-ups, and... more

SemGroup, L.P. is a midstream service company providing the energy industry means to move products from the wellhead to the wholesale marketplace. It is ranked No. 9 on Forbes magazine's list of America's Largest Private Companies.

The New York Mercantile Exchange Inc is the world's largest physical commodity futures exchange and a pre-eminent trading forum for energy and precious metals.

Sequent Energy Management is a wholly owned subsidiary of Atlanta-based AGL Resources (NYSE:ATG) and enjoys a strong financial profile, access to its parent company's key utility assets in North America, and extensive market knowledge and experience.

Located in the Pacific Northwest, Avista Energy provides electricity, natural gas and hydroelectric portfolio optimization and management, as well as risk management services. With its focus on Western energy markets, Avista Energy capitalizes on its knowledge of and experience with... more

Powerex Corp., a wholly-owned subsidiary of BC Hydro, is a leading marketer of wholesale energy products and services in western Canada and the western US, and a growing niche player in other markets across North America. At Powerex we work hard to provide our customers -- utilities,... more

Vitol is thriving proof that a multi-billion dollar oil conglomerate does not have to be a lumbering corporate giant. Certainly, we are by any standards a major force in world energy trading. We ship 200m tonnes of oil a year; we have revenues of over $100bn; and we offer 24-hour... more

The Brattle Group provides economic consulting services and expert testimony to corporations, law firms, and public agencies worldwide. The firm has offices in Cambridge (Massachusetts), Washington, DC, San Francisco, London, and Brussels. www.brattle.com.

Sempra Energy, our parent company, is a fortune 500 energy services holding company with nearly 13,000 employees worldwide. Headquartered in San Diego, California, Sempra Energy was formed in 1998 by the merger of Enova Corporation and Pacific Enterprises, the holding companies of San... more

EOTT Energy Partners, L.P. is a major independent marketer of crude oil in the United States and Canada. Together with its predecessors, the Partnership has been serving the petroleum industry since 1946. Both EOTT Energy Partners, L.P. and EOTT Energy Corp., the general partner, are... more

TEA was organized in 1997 by three of its six current owners (JEA, MEAG, and Santee Cooper) to address the changes in the electric utility industry, enhance the use of its owners' electric generating assets in the wholesale electric power market, optimize power purchases from the... more

ENERGI E2 is a leading Danish energy production and trading company. The company has 1,400 employees and owns 18 power stations in Eastern Denmark as well as interests in a number of hydropower stations in Sweden and Norway. In addition to this E2 owns wind turbines in Denmark, Sweden,... more

BizzEnergy is the most innovative energy supplier in the market. Set up in 2000 BizzEnergy is the largest independent energy supplier in the UK. BizzEnergy aims to make a complex industry simple by challenging the industry norm and developing innovative, flexible and efficient ways to... more

Questar Pipeline Company (Questar Pipeline) is an interstate pipeline company that provides natural gas-transportation and underground storage services in Utah, Wyoming and Colorado. It also provides processing and treatment services and other energy services. Questar Pipeline and its... more

EDF Trading is one of the leading traders in European emission allowances (EUA) and certified emission reduction (CER) credits. Our global reach spans Clean Development Mechanism (CDM) project developers in China, India, Brazil and Russia; industrial customers in EU countries; Japanese... more

Amelot Holdings, Inc., (AMHD) is a publicly traded company incorporated in the state of Wyoming. Headquartered in Osterville, MA., Amelot is focused on developing a global renewable energy trading and manufacturing company. Through its divisions , Amelot is executing a strategy to... more

Founded in 1985, Tradition Financial Services (TFS) is a market leader in the inter-dealer brokering of OTC physical and derivative products. With offices in the world's major financial centers, the Company covers global foreign exchange, commodity, equity, freight, precious metals,... more

Southern Company (NYSE: SO) is an international energy company with $36 billion in assets through regional utilities and operations around the world. It is the largest producer of electricity in the United States and one of the world's leading independent power producers. Based in... more