Oil and Gas Producing Companies
This list is not intended to be a comprehensive list of companies in each category and should not be used as such. This list is intended to capture the largest companies in each group that have websites. Where an English language version of the website is available, that link has been included; if an English language version is not available, the native language site has been
included.
All of these links are set up to open in a new browser window.
National Oil Companies (wholly or primarily government owned)
- Abu Dhabi National Oil
Co. (ADNOC) - China National
Petroleum Corp. (CNPC) - Chinese Petroleum Corp. [Taiwan]
- Dansk Olie og Naturgas AS (DONG) [Denmark]
- Egyptian General Petroleum Corp. (EGPC)
- Empresa Colombiana
de Petroleos (Ecopetrol) [Colombia] - Empresa Nacional del
Petroleo (ENAP) [Chile] - Fortum
Oy [Finland] - Gazprom [Russia]
- Japan
Petroleum Exploration - Oil & Natural Gas
Corp. Ltd. (ONGC) [India] - Pertamina [Indonesia]
- Petroleo Brasilerio SA (Petrobras)
- Petro Ecuador (EpPetroEcuador)
- Petroleos
del Peru (Petroperu) - Petroleos de Venezuela
SA (PDVSA) - Petroleos Mexicanos (PEMEX)
- Petroleum Co. of
Trinidad and Tobago Ltd. (Petrotrin) - Petroleum
Development Oman LLC - Petroleum Exploration
& Production Authority (PEPA) [Yemen] - Petronas [Malaysia]
- PTT
Exploration & Production Public Co. Ltd. (PTTEP) [Thailand] - Qatar Petroleum
Corp - Rompetrol [Romania]
- Saudi Arabian Oil Co. (Saudi Aramco)
- Sonangol [Angola]
- Sonatrach [Algeria]
- State Oil Co. of
Suriname Ltd. (Staatsolie) - Statoil ASA [Norway]
- Turkiye Petrolleri Anonim
Ortakligi (TPAO) [Turkey] - PetroVietnam
Integrated Global (Major) Companies
- BP plc
- Chevron Corp.
- ConocoPhillips
Co. - ENI
SpA - ExxonMobil
Corp. - Hess Corp.
- Marathon Oil
Corp. - Murphy Oil
Corp. - Occidental Petroleum
Corp. - Petro-Canada
- Shell (Royal
Dutch/Shell Group) - Total
Additional Companies – Outside the US
- Baytex Energy
Ltd. - BG Group
- BHP Billiton
Ltd. - Cairn Energy
plc - Canadian 88 Energy
Corp. - Canadian Natural Resources
Ltd. - EnCana Corp.
- Energy
Africa - FX Energy
- Husky Energy
Inc. - Ivanhoe
Energy - Lukoil Oil Co.
- Lundin
Petroleum AB - Mosaic Oil
N.L. - Nexen Inc.
- New Zealand Oil & Gas
Ltd. - Norsk Hydro ASA
- OMV AG
- Paramount Resources
Ltd. - Penn West Petroleum
Ltd. - PetroKazakhstan
- Premier Oil
plc - Ramco Energy
plc - Repsol
YPF - Santos Ltd.
- Sherritt International
Corp. - Summit
Resources - Talisman Energy
Inc. - Tap Oil
Ltd. - Tullow Oil plc
- Vanco
Energy Co. - Vermilion Resources Ltd.
Additional (Independent) Companies – US
- Anadarko Petroleum
Corp. - Apache Corp.
- Berry Petroleum Co.
- Burlington Resources
Inc. - Cabot Oil & Gas
Corp. - Callon Petroleum
Co. - Chesapeake Energy
Corp. - Citation Oil & Gas
Corp. - CMS Energy
Corp. - Denbury Resources
Inc. - Devon Energy
Corp. - Eagle Plains Resources
Ltd. - El Paso Corp.
- Energen Corp.
- EOG
Resources Inc. - Equitable Resources
- Forest Oil
Corp. - Houston
Exploration Co. - Koch Industries
Inc. - National
Fuels - Newfield Exploration
Co. - Noble Energy
- Pioneer Natural
Resources Co. - Plains Exploration
& Produciton Co. - Ruwco Oil & Gas
Corp. - Questar
Corp. - Stone Energy
Corp. - Swift Energy
Co. - Unocal Corp.
- XTO Energy
