Exxon Mobil Corporation (Exxon Mobil) through its divisions and affiliates is engaged in exploration for, and production of, crude oil and natural gas, manufacture of petroleum products and transportation and sale of crude oil, natural gas and petroleum products. Exxon Mobil is a... more

ConocoPhillips is an international, integrated energy company. It has six operating segments. Exploration and Production segment explores for, produces and markets crude oil, natural gas and natural gas liquids. Midstream segment gathers, processes and markets natural gas, and... more

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

Petrobras (www.Petrobras.com) is among the world's largest integrated oil and gas companies, engaging in a broad range of activities, including exploration, development, and production of crude oil and natural gas; refining, transportation, and wholesale marketing of crude oil, natural... more

Chevron Corp. manages its investments in subsidiaries and affiliates, and provides administrative, financial, management and technology support to the United States and International subsidiaries that engage in fully integrated petroleum operations, chemicals operations, mining operations... more

About Statoil - Statoil ASA is a major integrated oil and gas company headquartered in Stavanger, Norway. The company is the leading producer and marketer of oil and gas from Norwegian fields and operates eight fields in the North Sea as well as 20 offshore and onshore installations. A... more

BP p.l.c. (BP) is a holding company. With effect from January 1, 2008, the Company operates in two business segments: Exploration and Production, and Refining and Marketing. A separate business, Alternative Energy, handles the Company’s low-carbon businesses and options outside oil and... more

About ChevronTexaco Currently celebrating its 125th anniversary, ChevronTexaco is the second-largest U.S.-based energy company and the fifth largest in the world, based on market capitalization. More than 50,000 ChevronTexaco employees work in approximately 180 countries around the world,... more

Repsol YPF, S.A. is an integrated oil and gas company engaged in all aspects of the petroleum business, including exploration, development and production of crude oil and natural gas, transportation of petroleum products, liquefied petroleum gas (LPG) and natural gas, petroleum refining,... more

Eni S.p.A. (Eni) is an integrated energy company. The Company’s activities include finding, producing, transporting, transforming and marketing oil and gas. During the year ended December 31, 2007, the Company’s oil and natural gas production averaged 1.736 million barrels of equivalent... more

Occidental Petroleum Corporation (Occidental) conducts its operations through various oil and gas, chemical and other subsidiaries and affiliates. The Company operates in two segments: oil and gas, and chemical. The oil and gas segment explores for, develops, produces and markets crude... more

Anadarko Petroleum Corporation (Anadarko) is an oil and gas exploration and production company with 2.43 billion barrels of oil equivalent (BOE) of proved reserves as of December 31, 2007. The Company’s major areas of operation are located onshore in the United States, the deepwater of... more

The Royal Dutch/Shell Group of Companies, "the Group", is a diverse group of energy companies with operations in more than 130 countries. The Group?s businesses include oil and gas exploration and production; power generation; manufacturing, marketing and shipping of oil products and... more

Petronas is Malaysia's state-owned petroleum corporation. Incorporated in 1974, PETRONAS has evolved into an integrated oil and gas multinational engaged in the full spectrum of the oil and gas business. A Fortune 500 company, Petronas currently has strategic presence in 35 countries,... more

Talisman Energy Inc. (Talisman) is an independent, Canada-based, international upstream oil and gas company whose main business activities include exploration, development, production, transportation and marketing of crude oil, natural gas and natural gas liquids (NGLs). The Company's... more

Texaco Inc. is a fully integrated energy company engaged in exploring for and producing oil and natural gas; manufacturing and marketing high-quality fuels and lubricant products; operating trading, transportation and distribution facilities; and producing power. Directly and through... more

The China National Offshore Oil Corporation (CNOOC) is one of the largest state-owned oil giants in China, as well as the largest offshore oil and gas producer. It has established six business sectors, namely, oil and gas exploitation, technical services, chemical and fertilizer... more

Royal Dutch Shell plc is incorporated in England and Wales, has its headquarters in The Hague and is listed on the London, Amsterdam, and New York stock exchanges. Shell companies have operations in more than 130 countries with businesses including oil and gas exploration and production;... more

PetroKazakhstan continues to be a major contributor to social and charitable organizations in Kazakhstan. Through a well-established network of community involvement we have provided in excess of $35 million in sponsorship and charitable donations since 1997. We work closely with the... more

TotalFinaElf is a top-ranked international oil group and is Europe's leading refiner and petroleum marketer, with interests in 27 refineries and a world-wide network of over 17,000 service stations.

Caltex is a wholly-owned subsidiary of ChevronTexaco, a leader in the global integrated energy business and active in more than 180 countries. ChevronTexaco is the world's fourth-largest integrated energy company on oil-equivalent reserves (net proven reserves of approximately 11.9... more

PTT Public Company Limited is a fully integrated gas company engaged in the marketing and trading of various crude oil and refined petroleum products, as well as investing in the petrochemical and refining industries. Its business activities include the exploration for, the development... more

Hunt Oil Company was founded in 1934 and today is one of the leading privately held independent energy companies. Hunt Oil Company, its subsidiaries and affiliated entities, engage in oil and gas exploration and production activities in the United States, Canada, Yemen, Peru and a number... more