Teekay Corporation, together with its subsidiaries, provides crude oil and petroleum product transportation services worldwide. The company operates through four segments: Offshore, Fixed-Rate Tanker, Liquefied Gas, and Spot Tanker. The Offshore segment includes shuttle tanker operations; floating storage and off-take units; and floating production, storage, and offloading units. These vessels provide transportation, processing, and storage services to oil companies operating offshore oil field ...

Newfield Exploration Company engages in the exploration, development, and acquisition of crude oil and natural gas properties primarily in the United States. As of December 31, 2006, it owned interests in approximately 825,000 gross acres and 3,100 gross producing wells in the Anadarko and Arkoma Basins; approximately 300,000 gross acres and 650 gross producing wells primarily along the Gulf Coast of Texas; approximately 221,000 gross acres, 900 gross producing wells, and 400 water injection wel ...

Enbridge, Inc. transports and distributes crude oil and natural gas in North America and internationally. It operates in five segments: Liquids Pipelines, Gas Pipelines, Sponsored Investments, Gas Distribution and Services, and International. The Liquids Pipelines segment operates a common carrier pipeline and feeder pipelines that transport crude oil and other liquid hydrocarbons. The Gas Pipelines segment consists of investments in natural gas pipelines, including the U.S. portion of the Allia ...

Sunoco, Inc., through its subsidiaries, manufactures and markets various petroleum products, including fuels, lubricants, and petrochemicals in the United States. It also manufactures chemicals and has interests in logistics and cokemaking. The company operates in five segments: Refining and Supply, Retail Marketing, Chemicals, Logistics, and Coke. The Refining and Supply segment manufactures petroleum products, including gasoline; and middle distillates, such as jet fuel, heating oil, and diese ...

Sasol Limited, through its subsidiaries, operates as an integrated oil and gas company. The company explores for, and produces, crude oil offshore Gabon; owns onshore interests in the Temane and Pande fields of Mozambique; refines crude oil into liquid fuels in South Africa; and retails liquid fuels and lubricants produced in its refinery and by Sasol Synfuels, through a network of retail service centers. It primarily offers liquid and gaseous fuels, including gasoline, diesel, jet fuel, fuel al ...

Talisman Energy, Inc., an independent international upstream oil and gas company, engages in the exploration, development, production, transportation, and marketing of crude oil, natural gas, and natural gas liquids in North America and internationally. In North America, the company conducts exploration and development operations in Alberta, British Columbia, Ontario, and Saskatchewan areas comprising Edson area, such as Bigstone/Wild River, Edson, and West Whitecourt; Greater Arch; Alberta Foot ...

Chesapeake Energy Corporation, an oil and natural gas exploration and production company, engages in the acquisition, exploration, and development of properties for the production of crude oil and natural gas from underground reservoirs. It also markets natural gas and oil for other working interest owners in properties it operate. The company's properties are located in Oklahoma, Texas, Alabama, Arkansas, Louisiana, Kansas, Montana, Colorado, North Dakota, Nebraska, New Mexico, West Virginia, K ...

CNOOC Limited, together with its subsidiaries, engages in the exploration, development, production, and sale crude oil, natural gas, and petroleum products in China. The company has four oil production areas offshore China, which include Bohai Bay, western south China Sea, eastern south China Sea, and east China Sea, as well as offshore oil facilities in Indonesia and certain upstream assets in regions, such as Africa and Australia. As of 31 December 2006, CNOOC had net proved reserves of approx ...

Petro-Canada operates as an integrated oil and gas company in Canada. It engages in the exploration, development, production, and marketing of crude oil, natural gas liquids, and natural gas in Canada and internationally. The company also refines crude oil and other feedstock; and markets and distributes petroleum products and related goods and services. In addition, Petro-Canada involves in the production and marketing of a range of petroleum products, including gasolines, diesel oils, heating ...

Canadian Natural Resources Limited, through its subsidiaries, engages in the acquisition, exploration, development, production, marketing, and sale of crude oil, natural gas, natural gas liquids, and bitumen production. Its principal regions of crude oil and natural gas operations are the Western Canadian Sedimentary Basin, the United Kingdom sector of the North Sea, and offshore west Africa. As of December 31, 2006, the company had proved and probable reserves of 2,119 of million barrels of cru ...