- Ecopetrol
National oil company.
www.ecopetrol.com.co
- Total SA
(NYSE:TOT)
Engaged in the exploration, production, refining, marketing, and trading of oil, natural, and gas products.
www.totalfinaelf.com
- Canadian Natural Resources Limited
(NYSE:CNQ)
Senior independent oil and natural gas exploration, development, and production company with operations in Western Canada, the North Sea, and offshore West Africa.
www.cnrl.com
- OAO Tatneft
(NYSE:TNT)
Producer of crude oil.
www.tatneft.ru
- Imperial Oil
(AMEX:IMO)
Producer of crude oil in Canada and refiner and marketer of petroleum products.
www.imperialoil.ca
- Sinopec Shanghai Petrochemical Co.
(NYSE:SHI)
Processes crude oil into products, including synthetic fibers, resins and plastics, intermediate petrochemicals, and petroleum products.
www.spc.com.cn
- Woodside Petroleum
Operates Australian North West Shelf Gas energy project, and produces a range of oil and gas products.
www.woodside.com.au
- Lyondell Chemical Company
Manufacturer and marketer of basic chemicals and polymers.
www.lyondell.com
- Irving Oil Limited
www.irvingoil.com
- Pilot Corporation
Operates gas stations and convenience stores across the U.S.
www.pilotcorp.com
- Qatar Petroleum
National corporation completely owned by the State of Qatar. Responsible for all oil and gas industry processes in Qatar, including exploration, production, refining, transport, distribution, and export.
www.qp.com.qa
- Pertamina (Persero)
Indonesia's state-owned petroleum supply company.
www.pertamina.com
- Oil Price Information Service (OPIS)
News and prices for petroleum products, feedstocks, naphtha, petrochemicals, pipeline rates, transportation, truckstop guides, natural gas, gas liquids, and jet fuel.
www.opisnet.com
- Abu Dhabi National Oil Company (ADNOC)
Exploration, processing, construction, and exports in the oil and gas industry.
www.adnoc.com
- Sonatrach
Algerian oil and gas company.
www.sonatrach-dz.com
- Black Hills Corporation
(NYSE:BKH)
Diversified holding company with fuel production, energy marketing, and power generation operations.
www.blackhillscorp.com
- YUKOS
Oil and gas company headquartered in Moscow, Russia.
www.yukos.com
- Repsol YPF
(NYSE:REP)
Engaged in the exploration, development, and production of oil and natural gas.
www.repsol-ypf.com
- Slovene Oil Company
www.petrol.si
- Kuwait National Petroleum Company
www.knpc.com.kw
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