Range Resources Corporation was founded in 1975 and is headquartered in Fort Worth, Texas. Range Resources Corporation, an independent oil and gas company, engages in the exploration, development, and acquisition of oil and gas properties primarily in the southwestern, Appalachian, and Gulf Coast regions of the United States. Range Resources Corporation southwestern operations include the Barnett Shale of north central Texas, the Permian Basin of west Texas, and eastern New Mexico, as well as the East Texas Basin, the Texas Panhandle, and the Anadarko Basin of western Oklahoma. Its Appalachian operations include tight-gas, shale, coal bed methane, and conventional oil and gas production in Pennsylvania, Virginia, Ohio, New York, and West Virginia. Range Resources Corporation Gulf Coast operations include Texas, Louisiana, and Mississippi. Range Resources Corporation sells gas to utilities, marketing companies, and industrial users. As of December 31, 2008, Range Resources Corporation had 2.7 Tcfe of proved reserves. Range Resources Corporation also owns and operates 5,255 miles of gas gathering pipelines in Appalachia, which transport gas to transmission lines, and directly to end-users and interstate pipelines. Range Resources Corporation was formerly known as Lomak Petroleum, Inc. and changed its name to Range Resources Corporation in 1998.

Nicklos Drilling Company provides land and offshore contract drilling services in the Texas Gulf Coast, Southeast Texas, and Southwest Louisiana. Nicklos Drilling has four differently configured rigs capable of drilling in a depth range from 6,500 feet depth maximum to 17,000 feet maximum. Nicklos Drilling Company is owned and managed by Texas oil industry veterans Jim Nicklos (whose previous oil contracting business had gone bankrupt in the mid-1980s) and Jack Blanton (a one-time VP of family-owned Scurlock Oil). Nicklos Drilling Company by providing valuable oil field services that Nicklos Drilling makes its money.

Chevron U.S.A. wears its name like a badge of honor. The company, the major US subsidiary of global oil and gas giant Chevron, oversees most of its parent's of US businesses. Its assets include exploration and production assets. It is also one of North America's leading marketers of refined petroleum products (including diesel, gas, and motor oil). Chevron U.S.A operates a gas station network of more than 8,800 Chevron outlets in the West and South and 2,500 Texaco stations in the East and South. It also holds the Chevron's investment in the Chevron Phillips Chemical Company joint venture. Chevron U.S.A's industrial customers purchase base and process oils as well as fuel and lubricant additives.

Abu Dhabi National Oil Company (ADNOC) spreads its wings over the United Arab Emirates (UAE), accounting for 94% of its 97.8 billion barrels of proved oil reserves, the fourth-largest national reserves in the world behind Saudi Arabia, Iraq, and Kuwait. Abu Dhabi National Oil Company also has proved reserves of 6.1 trillion cu. ft. of natural gas. Abu Dhabi National Oil Company oversees oil production of more than 2.7 million barrels a day. The ADNOC group includes exploration and production companies, support companies, maritime crude oil transport companies, and a refined-product distribution company that operates more than 200 UAE service stations.

Operating four oil refineries, with a total of 28.1 million tons annual crude oil processing capacity, Tüpraş is Turkey’s largest industrial enterprise. In addition, a 50,000 ton capacity petrochemical production facility, a majority stake ( 79,98 %) in shipping company DİTAŞ and 40% share ownership of petrol retailer Opet, creates synergies and adds value to the operations. The roots of Tüpraş, an integrated petroleum company with a large market share, corporate reliability, production complexes and affiliates, dates back to İPRAŞ (İstanbul Petrol Rafinerisi A.Ş.) founded by the U.S. Caltex Company. In 1983, İPRAŞ and three other publicly owned refineries were brought under the Tüpraş umbrella by arrangements made for a more effective operation of State Economic Enterprises. The first step for operational diversification of Tüpraş was the purchase in 2001 of the Petkim Yarımca facilities, putting in place the ready-to-operate infrastructure for enlargement projects that were needed by the refining operations.

Alon USA Energy, Inc., together with its subsidiaries, engages in the refining and marketing of petroleum products primarily in the south central, southwestern, and western regions of the United States. The company operates in three segments: Refining and Unbranded Marketing, Asphalt, and Retail and Branded Marketing. The Refining and Unbranded Marketing segment refines crude oil into petroleum products, including gasoline, diesel fuel, jet fuel, motor fuel, petrochemicals, feedstocks, and asphalts in its sour and heavy crude oil refineries in Big Spring, Texas, and Paramount and Long Beach in California; and light sweet crude oil refinery in Krotz Springs, Louisiana. The Asphalt segment markets paving and roofing grades of asphalt, including performance-graded asphalts, emulsions, and cutbacks through its 12 refinery/terminal locations in Big Spring, Texas; Paramount, Long Beach, Elk Grove, Bakersfield, and Mojave, California; Willbridge, Oregon; Richmond Beach, Washington; Phoenix, Flagstaff, and Fredonia, Arizona; and Fernley, Nevada. This segment also owns a 50% interest in Wright Asphalt Products Company, LLC, which specializes in patented tire rubber modified asphalt products. The Retail and Branded Marketing segment operates convenience stores that offer various grades of gasoline, diesel fuels, general merchandise, and food and beverage products to the general public, primarily under the 7-Eleven and FINA brand names. It also licenses the use of the FINA brand name and provides credit card processing services to approximately 240 licensed locations. As of December 31, 2008, this segment operated 306 convenience stores primarily in central and west Texas, and New Mexico. The company was founded in 2000 and is based in Dallas, Texas. Alon USA Energy, Inc. is a subsidiary of Alon Israel Oil Company, Ltd.

Husky Energy Inc. Headquartered in Calgary, Alberta, is one of Canada’s largest integrated energy and energy-related companies, with upstream, midstream and downstream segments operating from Western Canada, to offshore Canada’s East Coast, the United States, China, Indonesia and Greenland. Husky Energy Inc. main energy assets are in Alberta and Saskatchewan, although it has oil and gas operations worldwide (including in China, Greenland, and Libya). Husky Energy Inc. has net proved reserves of 470 million barrels of oil and bitumen, and 1.9 trillion cu. ft. of natural gas. Husky Energy Inc. has more than 490 gas stations in Canada, as well as heavy oil upgrade Lloydminster. Hong Kong billionaire Li Ka-shing and his flagship company, Hutchison Whampoa, control 36% and 35% , respectively, of Husky Energy. Li's son Victor is a co-chairman of Husky Energy.

Richland Partners (doing business as Leffler Energy) puts its energy into supplying home heating oil products to areas of Pennsylvania, Maryland, New Jersey, and Delaware. Richland Partners, LLC also installs and services heat pumps, central air conditioning, and hot water heaters. Meenan Oil, a subsidiary of Star Gas, purchased both SICO and Leffler and merged them to form Leffler Energy in 2003. With its roots in serving farming communities, Leffler Energy still provides a broad range of fueling and energy services (from customer service centers and storage facilities) to rural businesses throughout central and eastern Pennsylvania.

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 Oil doesn't shilly-shally around, it explores for, produces, and markets oil, natural gas, and chemicals. The company's Shell Exploration & Production unit focuses its exploration on the deepwater plays in the Gulf of Mexico. Shell partners with Saudi Aramco in a US refining and marketing venture (Motiva), and owns Motiva's sister company Shell Oil Products US (formerly Equilon). Shell also produces petrochemicals (Shell Chemical) and liquefied natural gas (Shell US Gas & Power), and markets natural gas and electricity. Shell's parent, Royal Dutch Shell, is the world's #2 petroleum company (behind Exxon Mobil).

Center Oil's core business is peddling petroleum. The company is one of the largest private wholesale distributors of gasoline and other petroleum products to customers primarily in the eastern region of the US. Center Oil owns a dozen storage terminals capable of storing 2.8 million barrels of petroleum products. It also has access to 36 terminals in 10 states, as well as access to the Magellan, Texas Eastern, Kinder Morgan Chicago, and Kaneb pipeline systems. Its products are also distributed through a fleet of ships, barges, and trucks.

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