Oil companies

Organizations

Algeria
Angola
Azerbaijan
Cameroon
 European Union
 France
Gabon
Indonesia
Iraq
Kazakhstan
Khanty-Mansijsysk
        (Russian Federation)
 Kuwait
Mexico
Nigeria
 Norway
 Republic of Congo
Qatar
 United States
Uzbekistan

BP (UK)
Chevron (USA)
ConocoPhillips (USA)
Eni (Italy)
ExxonMobil (USA)
Kuwait Oil Co (Kuwait)
Marathon Oil (USA)
Maersk Oil & Gas (Denmark)
NNPC (Nigera)
Pemex (Mexico)
PetroEcuador (Ecuador)
Pertamina (Indonesia)
Shell (UK-The Netherlands)
Sonatrach (Algeria)
Sonangol (Angola)
SOCAR (Azerbaijan)
SNH (Cameroon)
Statoil (Norway)
TOTAL (France)
Qatar Petroleum (Qatar)

European Bank for Reconstruction and Development (EBRD)
European Union
Wärtsilä
World Bank