Aera Energy LLC (Aera), a California limited liability company, is one of California’s largest oil and gas producers, accounting for approximately 30% of the state’s production. With headquarters in Bakersfield, most of Aera’s production is centered in the San Joaquin Valley. Aera Energy LLC also has oilfield operations in the L.A. Basin and in Ventura and Monterey Counties. Aera produces approximately 160,000 barrels of oil and 50 million cubic feet of natural gas each day and has proved oil and gas reserves equivalent to approximately 800 million barrels of oil. Aera Energy LLC, which began operating as Aera Energy LLC on June 1, 1997, consists of the California onshore and offshore exploration and production (E&P) assets previously operated by CalResources LLC (a former Shell Oil Company affiliate), Mobil Exploration & Producing U.S. Inc. (now an Exxon Mobil Corporation affiliate), and ARCO. Today Aera is jointly owned by Shell and ExxonMobil and is operated as a stand-alone company through its own board of managers (directors). The California-based refining, retail petroleum marketing and pipeline operations of Shell and ExxonMobil are not included in Aera.

Emerald Energy is the oil and gas exploration and production company focuses on Colombia, where it has proved and probable reserves of 13.8 million barrels of oil equivalent. Emerald Energy was awarded a contract to drill its first well in the Campo Rico oil field in 2004, and Emerald Energy Plc has since expanded its operations in Colombia. Emerald Energy also has a 50% stake in an oilfield in Syria; Gulfsands Petroleum Syria holds the remaining 50% interest. In 2009 Chinese giant Sinochem, trying to gain further access to the South American and Middle Eastern markets, moved to buy Emerald Energy for about $875 million.

W&T Offshore, Inc. are an independent oil and natural gas acquisition, exploitation and exploration company. W&T Offshore, Inc. are focused primarily in the Gulf of Mexico area, where W&T Offshore, Inc. have developed significant technical expertise and where the high production rates associated with hydrocarbon deposits have historically provided us the best opportunity to achieve a rapid payback on our invested capital. W&T Offshore, Inc. has interests in approximately 77 producing fields in federal and state waters; leases covering approximately 0.6 million net acres in the outer continental shelf off the coasts of Louisiana, Texas, Mississippi, and Alabama; and interests in approximately 288 structures. As of December 31, 2009, W&T Offshore, Inc. had proved reserves of 371.0 billion cubic feet of gas equivalent. W&T Offshore, Inc. was founded in 1983 and is based in Houston, Texas.

Far East Energy Corporation was founded in 2000 and is headquartered in Houston, Texas. Far East Energy Corporation, a development stage company, together with its subsidiaries, focuses on the exploration, development, production, and sale of coalbed methane gas in the People's Republic of China. Far East Energy Corporation owns interests in three production sharing contracts, which cover the 485,000-acre Shouyang Block in Shanxi Province; the 573,000-acre Qinnan Block in Shanxi Province; and the Enhong and Laochang areas, which total 265,000 acres, in Yunnan Province. Far East Energy Corporation has a strategic alliance with Arrow Energy International Pte Ltd.

Blue Rhino, the cerulean rhinoceros with a flaming snout is displayed across all 50 states in the US and Puerto Rico. Blue Rhino exchanges propane cylinders (the ones used for gas grills). Customers exchange empty cylinders for prefilled ones at hardware and convenience stores, including Home Depot, Lowe's, Wal-Mart, and Circle K. In an effort to gain greater control over distribution, the company has acquired additional independent propane distributors that deliver the cylinders to stores. Blue Rhino also serves the paintball market through Rhino Power, which provides a retail-based CO2 tank exchange program. Blue Rhino is a unit of propane powerhouse Ferrellgas.

Warren Equities fills car tanks and stomachs in the US Northeast. The holding company sells fuel and groceries from more than 300 Xtra Mart brand service stations and convenience stores from Maine to Virginia. Warren's distribution companies supply those stores, as well as independent outlets, with gasoline, grocery, and tobacco products. Other Warren companies trade and store petroleum, provide environmental testing services, and make promotional signs and clothing. Founder Warren Alpert's foundation gives annual grants to medical researchers. Alpert died in 2007.

Goodrich Petroleum Corporation was founded in 1970 and is based in Houston, Texas. Goodrich Petroleum Corporation engages in the exploration, exploitation, development, and production of oil and natural gas properties in the Cotton Valley trend and Haynesville Shale play of East Texas and Northwest Louisiana. Goodrich Petroleum Corporation offers drilling activities and holds interests in various areas, including primarily North Minden, Dirgin-Beckville, Angelina River, South Henderson, Bethany-Longstreet, Longwood, and Caddo Pine Island. As of December 31, 2008, Goodrich Petroleum Corporation had estimated proved reserves of approximately 390.4 billion cubic feet of natural gas and 1.9 million barrels of oil and condensate. Goodrich Petroleum Corporation owned working interests in 414 active oil and gas wells located in 30 fields in six states.

Century Energy Ltd. is a junior oil and gas exploration company actively pursuing exploration opportunities in Canada and South America. Century Energy Ltd. owns the petroleum and natural gas rights to 1,100 acres in the Bakken oil formation in Southern Saskatchewan. In conjunction with TriAxon Resources Ltd. (its joint venture partner with extensive experience in the Backken Shale play) Century Energy Ltd. has succeeded in producing oil from its first exploratory Bakken well and plans to develop several others.

Shell is a leading oil and gas producer in the deepwater Gulf of Mexico, a recognized pioneer in oil and gas exploration and production technology and one of America’s leading oil and natural gas producers, gasoline and natural gas marketers and petrochemical manufacturers. We operate in 50 states and employ more than 22,000 people delivering energy in technically innovative ways. Shell Pipeline Company keeps the oil moving and the pipes pumped. The company, a subsidiary of Shell Oil's Shell Oil Products US unit, is one of the largest petroleum products pipeline transportation companies in the US. Shell Pipeline has partial ownership of 10,000 miles of pipeline and annually moves more than 2 billion gallons of oil and petroleum products across 21 states. Shell Pipeline transports more than 50 different kinds of crude oil, more than 20 different grades of gasoline, including diesel fuel, jet fuel, chemicals, ethylene, and NGLs. The company manages more than 1,200 miles of offshore pipelines, 600 miles of onshore pipelines, and more than 10 terminals throughout the Gulf of Mexico.

Spectrum ASA provides surveys, 2D and 3D seismic data processing, and electronic data management services for oil and gas exploration and production customers worldwide. Spectrum ASA provides information technology consultancy, network design, and system installation services, and has regional centers in Houston, London, Oslo, and Singapore. Spectrum ASA has also developed software that enables vintage seismic data to be loaded onto a workstation for interpretation. UK-based Spectrum Energy and Information Technology was founded in 1985. Spectrum ASA merged with Norway's Global Geo Services to form GGS-Spectrum Limited in 2005. Spectrum was spun out in 2008.

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