Worldwide
National Oil Companies (government owned)
- Abu Dhabi National Oil Co. (ADNOC)
- China National Offshore Oil. (CNOOC)
- 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
- Kuwait Petroleum Corp. (KPC)
- Myanmar Oil & Gas Enterprise [Myanmar (Burma)]
- National Iranian Oil Co. (NIOC)
- Nigerian National Petroleum Corp [Nigeria]
- Oil & Natural Gas Corp. Ltd. (ONGC) [India]
- Pertamina [Indonesia]
- Petroleo Brasilerio SA (Petrobras)
- Petroleos del Ecuador (PetroEcuador)
- 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
Global Oil Companies (Multinationals)
- 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
Others Oil Related Companies
- 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.
- Navigo Energy Inc.
- 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.
- Yukos Oil Co.
Brief History of the Oil and Gas / Petroleum Industry
In 1911, the power of Standard Oil was such that the American congress voted the famous antitrust law aimed at breaking it up into three “bits”: Standard Oil of New Jersey (the future Exxon), Standard Oil of New York (the future Mobil), and Standard Oil of California (Socal).
All three would become part of the global conglomorate group: Exxon, Socal (later to become Chevron), Mobil, Texaco, Gulf, BP (the heir of AIOC, the Anglo-Iranian Oil Company), and Shell.
Then came the French CFP (Compagnie Française des Pétroles, the future Total)
The two oldest of the major oil companies were created at the end of the 19 th century:
1/. The American, Standard Oil belonging to the Rockefeller family.
2/. The Anglo-Dutch, Royal Dutch/Shell.
The principal international oil companies, the major players are:
1/. Exxon/Mobil: American, formed by the merger of Exxon and Mobil;
2/. BP: British, the result of a merger between BP and Amoco;
3/. Shell: Anglo-Dutch;
4/. Total: French, the result of a merger between Elf, Fina and Total;
5/. Chevron/Texaco: American, resulting from the merger of Chevron and Texaco.
National agencies & government departments with responsibility for energy matters
DGEMP(Department of Energy and Raw Materials) in France
OPEC (the Organisation of Petroleum Exporting Countries),
OAPEC (the Organisation of Arab Petroleum Exporting Countries)
IEA (the International Energy Agency)
DOE, the Department of Energy ,US
Oil sector as suppliers of services
Companies are involved in specific technical areas such as geophysical surveying and analysis, drilling, depth imaging, production equipment. They supply oil companies with personnel and equipment. e.g Schlumberger, Halliburton
Research institutes - IFP (Institut Franais du Ptrole, or the French Oil Institute)
Investments in Renewable Energy for Future:
BP with solar energy, the new world leader in photovoltaic production;
Shell with the biomass, solar and wind energy, whose declared objective was to hold a 10% market share in renewable energies in 2005;
Total with the design and marketing of photovoltaic systems and investments in other renewable energies (wind, wave energy …).
OPEC countries Company State share in the company
Algeria Sonatrach 100%
Saudi Arabia Aramco 100%
United Arab Emirates ADCO/DPC 60% / 100%
Indonesia Pertamina 100%
Iran NIOC 100%
Iraq INOC 100%
Kuwait KPC 100%
Libya NOC 100%
Nigeria NNPC 100%
Qatar QGPC 100%
Venezuela PDVSA 100%
Source: the OPEC statistical bulletin, 2003
In some Poorer countries in Africa main production activities are delegated to the major foreign companies within the framework of production sharing contracts and incomes.
In the United States, oil production is entirely in the hands of the private sector.
The Middle Eastern countries, all members of OPEC, together hold 2/3 of worldwide oil reserves.
Saudi Arabia alone possesses ¼ of these world reserves.
OPEC in total holds 80% of world reserves and produces a little less than 40% of the oil consumed throughout the world.




