PETRONAS was incorporated on 17 August 1974 as the national oil company of Malaysia, vested with the entire ownership and control of the petroleum resources in the country. It has since grown from merely being the manager and regulator of Malaysia’s upstream sector into a fully integrated oil and gas corporation, ranked among the FORTUNE Global 500® largest corporations in the world. Headquartered in the world's tallest buildings (PETRONAS Twin Towers), state-owned Petroliam Nasional Berhad (PETRONAS) towers above other Malaysian companies in revenues. As a holding company for Malaysia's oil and natural gas concerns, PETRONAS' subsidiaries engage in exploration and production and refining and sales ventures in more than 30 countries, primarily in Asia and Africa. The company has estimated proved reserves of more than 27 billion barrels of oil equivalent (the bulk of which is natural gas). It is a major producer of liquefied petroleum gas (LPG). PETRONAS markets petroleum products through more than 900 domestic gas stations; it also sells aviation fuels, kerosene, and lubricants.

El Paso Corporation conducts meaningful work—day in, day out. We provide natural gas and related energy products in a safe, efficient, and dependable manner. We are organized around two core businesses—pipelines and exploration and production. We own North America’s largest interstate natural gas pipeline system—approximately 42,000 miles—transporting more than a quarter of the natural gas consumed in the country each day. Some of our pipeline assets are owned by El Paso Pipeline Partners, our master limited partnership (Learn more at www.eppipelinepartners.com).Our E&P operation ranks in the top 10 domestic independent producers, operating in high-quality basins across the United States and in Brazil and Egypt.

Total Energy Services Inc. ("Total") is a growth oriented energy services company based in Calgary, Alberta. Total Energy Services has two core businesses, both focused on the energy industry. Total Energy Services Inc. Drilling Services unit provides contract drilling and surface equipment rental and transportation to the oil and gas industry in western and northern Canada. Total Energy Services' Chinook Drilling subsidiary offers contract drilling throughout the Western Canadian Sedimentary Basin. Total Energy Services Inc. second core business, Production Services, manufactures, sells, rents, and services new and used natural gas compression equipment. Its Bidell Equipment unit supplies natural gas compressors. In 2009 Total Energy Services Inc. reorganized from a trust to a corporation to give it greater financial flexibility.

Petroleum Development Corporation was founded in 1955 and is based in Denver, Colorado.Petroleum Development Corporation engages in the exploration, development, production, and marketing of oil and natural gas. Petroleum Development Corporation also specializes in the purchase, aggregation, and resale of natural gas from other producers. As of December 31, 2008, Petroleum Development Corporation owned interests in approximately 4,712 gross wells located primarily in the Rocky Mountain Region, and the Appalachian and Michigan Basins with 753 billion cubic feet equivalent of net proved oil and natural gas reserves. Petroleum Development Corporation sells natural gas to other gas marketers, utilities, industrial end-users, and other wholesale gas purchasers.

China National Offshore Oil Corporation (CNOOC) is the largest offshore oil and gas producer in China. Besides production, which is handled through subsidiary CNOOC Limited, CNOOC has more than two dozen other subsidiaries involved in oil and gas refining and marketing, chemicals (China BlueChemical), technical and engineering services (such as China Oilfield Services), and financial services (such as a life insurance joint venture with AEGON). About half of the government-owned company's revenue comes from oil production; in 2008, China National Offshore Oil Corporation produced 194 million barrels of oil equivalent, while its refineries processed 3.35 million tons of crude. CNOOC's marketing arm owns almost 200 gas stations and eight oil depots.

Penn Virginia Corporation was founded in 1882 and is headquartered in Radnor, Pennsylvania with its additional offices in Oklahoma, Tennessee, Texas, and West Virginia.Penn Virginia Corporation is an independent oil and gas company primarily engaged in the development, exploration and production of natural gas and oil through our wholly owned subsidiary, Penn Virginia Oil & Gas Corporation, or PVOG. Penn Virginia Corporation also own partner interests in Penn Virginia Resource Partners, L.P., (NYSE: PVR), which is involved in the coal and natural resource management and natural gas midstream businesses, and Penn Virginia GP Holdings, L.P., or PVG, which owns PVR’s general partner.We have a geographically diverse asset base with core areas of operation in the East Texas, Mid-Continent, Appalachian, Mississippi and Gulf Coast regions of the United States. As of December 31, 2008, Penn Virginia Corporation had proved natural gas and oil reserves of approximately 916 Bcfe, of which 82% were natural gas and 51% were proved developed, with an SEC pre-tax PV-10 value of $908.0 million and standardized measure of discounted future net cash flows of $729.4 million.

The Company, headquartered in El Dorado, Arkansas, was originally incorporated in Louisiana in 1950 as Murphy Corporation. It was reincorporated in Delaware in 1964, at which time it adopted the name Murphy Oil Corporation. But, the Company's roots go back to a lumber and banking business in South Arkansas and, more directly, to 1907, when the first oil production was established in the Caddo Field in North Louisiana. Thereafter, oil and gas were important phases of the business. Until the mid 1930's however, oil and gas remained subordinate to timber operations and banking. Today, Murphy Oil Corporation is a worldwide oil and gas exploration and production company with refining and marketing operations in the United States and the United Kingdom. The Company's farm, timber and real estate subsidiary was spun-off to shareholders in 1996 and is now known as Deltic Timber Corporation.

Sharon Energy Ltd. holds a 25% working interest in the Hound Dog Dickson well of the Wilcox gas zone. The junior oil and gas company has natural gas exploration programs in Texas in the US, and in Alberta and Saskatchewan in Canada. Sharon Energy Ltd. produces more than 300 barrels of oil equivalent per day. Operations in Alberta include participation in gas discoveries, including interests in gas wells in the Harmattan field. Sharon Energy has total net proved plus probable reserves of nearly 1.5 million barrels of oil equivalent. To raise cash, In 2009 Sharon Energy Ltd. sold subsidiary Sharon Resources to Houston-based Magnum Hunter Resources.

Tristream Energy, which provides natural gas producers with a range of gathering, transportation, fractionation, processing, marketing, treating, and related services. Tristream Energy, LLC. develops, acquires and operates infrastructure downstream of producer facilities in major US producing basins (in Louisiana, Oklahoma, Texas, and the Rockies). Tristream Energy, LLC. was formed by Ken Purgason, Tony Catalano, and Mike Urban (all formerly of Sago Energy) in 2005. Sago Energy had been owned and operated by president Purgason and Catalano. Tristream Energy, LLC. sold its major operating subsidiaries (Sago Jameson, LEDCO, Louisiana State Gas, and LEDCO Gas Gathering) in 2004.

PetroQuest was founded in 1985 as a Gulf Coast oil and gas company. From 1985 to 2002 PetroQuest grew its reserves to 69 Bcfe located principally onshore in Louisiana and offshore in the Gulf of Mexico. In 2003, PetroQuest implemented an asset diversification strategy to balance its Gulf Coast and Gulf of Mexico operations with longer lived, lower risk onshore properties. Using the cash flow generated from its Gulf Coast Basin assets, PetroQuest has expanded its asset portfolio to include properties in the Woodford and Fayetteville Shale plays in the Arkoma Basin and it has acquired a significant position in the East Texas Basin where it is pursuing both oil and gas potential.The strategy has yielded results as PetroQuest has more than doubled reserves since 2002 to 157 Bcfe while production has increased an average of more than 18% per year to 31 Bcfe in 2007. PetroQuest Energy, Inc. is now focused on expanding its onshore operations with approximately 75% of its $230 million 2008 capital expenditure budget allocated to East Texas and the Arkoma Basin.

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