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This is a list of petroleum companies.
Ranked list by size
A list of the largest petroleum companies is always somewhat arbitrary as state-owned companies operate differently to private-owned ones. As of April 2007 here are the list of the biggest petroleum companies in terms of oil reserves, figures in billions of barrels:[1]
- Saudi Arabian Oil Company 295
- National Iranian Oil Company 287
- Qatar Petroleum 165
- Abu Dhabi National Oil Company 137
- Iraq National Oil Company 137
- Gazprom 115
- Kuwait Petroleum Corporation 107
- Petróleos de Venezuela S.A. 102
- Nigeria National Oil Corporation 62
- National Oil Corporation (Libya) 45
- Sonatrach 40
- Rosneft 35
Alphabetical list of companies
- Abu Dhabi National Oil Company (ADNOC), United Arab Emirates
- Addax Petroleum, Switzerland
- Alon USA, United States
- Amerada Hess Corporation, United States
- Anadarko Petroleum Corporation, United States
- Apache Corporation, United States
- Arbusto Energy, United States
- Atlantic Petroleum, Faroe Islands
- BG Group, United Kingdom
- Bharat Petroleum Corporation Limited, India
- BHP Billiton, Australia
- BP, United Kingdom
- Cairn Energy, India
- Canadian Natural Resources, Canada
- Charottar Gas Sahkari Mandli., India
- Chevron Corporation, United States
- Citgo, Venezuela
- CNOOC Ltd., China
- ConocoPhillips, United States
- Crown Central Petroleum, United States
- Cupet, Cuba
- Devon Energy, United States
- Ecopetrol, Colombia
- Emarat, UAE
- Emarat Misr, Egypt
- Enbridge, Canada
- EnCana, Canada
- ENSCO International, United States
- Elinoil Hellenic Petroleum Company S.A., Greece
- Eni, Italy
- Entreprise Tunisienne d'Activites Petroliere (ETAP), Tunisia
- Essar Oil, India
- ExxonMobil, United States
- Faroe Petroleum, Faroe Islands
- Galp Energia, Portugal
- Gujarat Oleo Chem Ltd., India
- Geo Global Resources., India
- Petronet LNG Limited, India
- Gujarat Gas Co. Ltd., India
- Gujarat State Petroleum Corporation, India
- Gulf Oil, Luxembourg
- Grupa LOTOS, Poland
- Hellenic Petroleum, Greece
- HOECL, India
- Husky Energy, Canada
- Imperial Oil, Canada
- INA (Industrija Nafte), Croatia
- Indian Oil Corporation, India
- Insight Energy Corp, United States
- Irving Oil, Canada
- Jubiliant Empro, India
- JHON ENERGY, India
- Kerr-McGee, United States
- Koch Industries, United States
- Kuwait German Petroleum Company, Canada
- The Louisiana Land & Exploration Company, United States
- LUKoil, Russia
- Marathon Oil Corporation, United States
- Maxol Group, Republic of Ireland
- MedcoEnergi, Indonesia
- Mol Group, Hungary
- Naftna Industrija Srbije, Serbia
- National Iranian Oil Company (NIOC), Iran
- National Oil Corporation, Libya
- Neste Oil, Finland
- North Atlantic Petroleum, Canada
- Northern Territory Oil Limited, Australia
- NNPC,Nigeria
- Occidental Petroleum
- Oil & Gas Development Company Limited (OGDCL), Pakistan
- Oil & Gas Petroleum Corporation, Switzerland & United States
- Oil India Limited, India
- OMV, Austria
- ONGC, India
- PKN Orlen S.A., Poland
- PSO, Pakistan
- Petróleos de Venezuela, Venezuela
- Petroleos Mexicanos, Mexico
- Petro-Canada, Canada
- Petro Peru, Peru
- Petrobras, Brazil
- PetroChina, China
- Petroconpak, Pakistan
- PetroKazakhstan, Canada
- Petrom, Romania
- Petron Corporation, Philippines
- PETRONAS, Malaysia
- Petrotrin, Trinidad and Tobago
- Pertamina, Indonesia
- Piyush Petroleum Co. Ltd, India
- Pogo Producing, United States
- Polish Oil and Gas Company, Poland
- Prize Petroleum CO.LTD., India
- Qatar Petroleum, Qatar
- Reliance Industries Limited, India
- Repsol YPF, Spain
- Rompetrol Group N.V., Romania
- Royal Dutch Shell, Netherlands, United Kingdom
- Santos Limited, Australia
- Sasol, South Africa
- Saudi Aramco, Saudi Arabia (the largest in the world)
- Shell Canada, Canada (subsidiary of Royal Dutch Shell)
- Shell Oil Company, United States (subsidiary of Royal Dutch Shell)
- Sinclair Oil, United States
- Sinopec, China
- Sonangol, Angola
- Sonatrach, Algeria
- SPC, Singapore
- StatoilHydro, Norway
- State Oil Company of Azerbaijan, SOCAR Azerbaijan
- Stuart Petroleum Limited, Australia
- Sunoco, United States
- Suncor Energy, Canada
- Surgutneftegaz, Russia
- Syncrude, Canada
- Talisman Energy, Canada
- Teikoku Oil, Japan
- Todd Energy, New Zealand
- Total, France
- Turkish Petroleum Corporation, Turkey
- Turkish Petroleum International Company Limited, Turkey
- Tüpraş, Turkey
- United Petroleum, Australia
- United Refining Company, United States
- Vaalco Energy Inc., United States
- Van Doren Oil, United States
- Wintershall, Germany
- Wyngate International, Inc. United States
- Woodside Petroleum, Australia
- YPFB, Bolivia
- YUKOS, Russia
