HKN, Inc. was founded in 1973 and is based in Southlake, Texas.HKN, Inc., together with its subsidiaries, engages in the exploration, exploitation, development, and production of oil and gas properties primarily in the onshore and offshore Gulf Coast regions of south Texas and Louisiana. HKN, Inc. also explores and develops coal bed methane in Indiana and Ohio. As of December 31, 2008 HKN, Inc. operated or owned a non-operating working interest in 66 oil wells, 68 gas wells, and 12 injection wells.

GE's Oil & Gas business, headquartered in Florence, Italy, is a leader in the development and delivery of advanced product and service offerings for the global oil and gas industry. GE Oil & Gas provides compression technologies, transportation, processing, refining, and storage, drilling and production services, and power generation turnkey services to companies worldwide. GE Oil & Gas has an installed base of 11,000 compressors, 18,000 centrifugal pumps, 5,000 turbines, and 2,000 turboexpanders. GE Oil & Gas acquired leading oilfield services company VetcoGray in 2007. Other major brands include Conmec (turbomachinery), Nuovo Pignone (compressors and pumps), Odessa (turbine overhaul), and PII (pipeline inspection).

State-owned Perusahaan Pertambangan Minyak Dan Gas Bumi Negara (Pertamina) controls the entire oil and gas industry in Indonesia, and is the world's largest producer and exporter of liquefied natural gas (LNG). Pertamina also works with foreign petroleum companies, but solely on a contract basis. Pertamina has estimated proved reserves of 4 billion barrels of oil and 2.7 trillion cu. meters of natural gas, and operates seven oil refineries, and has numerous LNG, LPG, shipping, and fuel businesses. Pertamina also invests heavily in the development of geothermal energy as an alternative energy source.

Wenzel Downhole Tools Ltd. (WZL) and its predecessor companies has been a leading supplier of downhole drilling tools to the oil and gas industry for over thirty years. Wenzel Downhole Tools Ltd. has and continues to pioneer and patent new concepts in motor capabilities for numerous drilling applications. Wenzel Downhole Tools Ltd. makes drilling tools (drilling motors, shock tools, and drilling jars) used by the oil and gas drilling industry. Among the company's products are coatings (installation of protective coatings), downhole motors (straight hole, short radius, coiled tubing, and multi-point drilling motors), fabricated equipment, solids-control equipment (screens), and underground tooling. Wenzel Downhole Tools Ltd. also provides oil field equipment rental and repair. Wenzel Downhole Tools operates from Canada and the US; the company offers its products to customers worldwide.

BP Marine has a presence in more than 50 countries and 300 ports globally, supplying customers with high quality fuels, technologically advanced lubricants and a wide range of innovative services. Committed to the environment, BP Marine is developing cleaner fuels, biodegradable lubricants and innovative emissions abatement technology and trading solutions. It is also currently rolling out a programme of upgrading infrastructure at its existing ports, further underlining its long term commitment to the maritime industry.

Mariner Energy, Inc. was incorporated in 1983 and is headquartered in Houston, Texas with additional offices in Midland, Texas; and Lafayette, Louisiana. the independent explores in both the deep and shallow waters of the Gulf of Mexico, where Mariner Energy, Inc. has the bulk of its proved reserves. But the landlocked Permian Basin of West Texas is also an area of focus. Mariner Energy sees this diversified portfolio as a key strategic asset, allowing the company to work in two distinct exploration environments. In 2008 Mariner Energy, Inc. reported estimated proved reserves of 974 billion cu. ft. of natural gas equivalent. In late 2009 Mariner Energy acquired bankrupt Edge Petroleum for about $260 million.

Among the nation's first and most successful energy trading organizations, PSEG Energy Resources & Trade operates a leading wholesale energy business in the Eastern United States. As the trading arm of PSEG Power, PSEG Energy Resources & Trade markets the output of PSEG Power's generation assets, acquires and hedges fuel and power, economically dispatches plants and trades numerous energy-related products. PSEG Energy Resources & Trade operates from a cutting-edge trading floor at our corporate headquarters in Newark, NJ. PSEG Energy Resources & Trade trades throughout the greater Northeast United States, from New England to Virginia and as far south central as Texas. We focus primarily on those areas in which our generating assets are located: PJM, the nation's largest and most developed energy market, as well as New York, New England and ERCOT.

HOVENSA is among the top ten largest refineries in the world. The company became the owner and operator of the former Hess Oil Virgin Islands Corp. (HOVIC) refinery on October 30, 1998. HOVIC, a wholly owned Virgin Islands subsidiary of Hess Corporation, was established to construct and operate an oil refinery in coordination with the Virgin Islands Government’s efforts in the 1960’s to diversify the economy of the islands. HOVENSA provides employment to approximately 2,500 people in a culturally diverse workforce through its payroll and that of several maintenance contractors.

Newfield Exploration Company was founded in 1988 and is based in Houston, Texas. Newfield Exploration Company, an independent oil and gas company, engages in the exploration, development, and acquisition of natural gas and crude oil properties. As of December 31, 2008, it owned working interests in approximately 750,000 gross acres and 2,000 gross producing wells in Anadarko and Arkoma Basins; an interest in approximately 1.2 million gross acres and approximately 1,950 gross producing wells in the Rocky Mountains; interests in approximately 400,000 gross acres and approximately 1,000 gross producing wells in onshore Texas; and interests in 76 leases in deepwater with approximately 438,000 gross acres and 26 leases on the shelf. Newfield Exploration Company also had proved reserves of approximately 2.95 trillion cubic feet equivalent. In addition, Newfield Exploration Company has operations in Malaysia and the People's Republic of China.

ROC is one of Australia’s leading independent upstream oil and gas companies. Incorporated in Australia, ROC listed on the Australian Stock Exchange (ASX) in 1999. ROC currently has approximately 713 million shares on issue. ROC is an upstream oil and gas company with exploration and production interests in Australia, Africa, China, and the UK. Some of its assets include the Cliff Head Oil Field, located offshore in the Perth Basin in Western Australia, as well as the onshore Basker-Manta-Gummy (BMG) Oil and Gas Fields, also located in Australia. Together, the company's total assets cover 57,000 square kilometers and produced more than 4 million barrels of oil equivalent in 2008. ROC was formed 1997 as a private company, but Roc Oil Company Limited became a publicly-traded company two years later.

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