Lista include companiile Alon (Statele Unite), Conoco Philips (Marea Britanie), Eni (Italia), Gazprom (Rusia), Glencore (Elveţia), Hellenic Petroleum (Grecia), MOL (Ungaria), Occidental Oil and Gas Holding Corporation (Statele Unite), OMV (Austria), PKN Orlen (Polonia) şi TNK-BP (Statele Unite).
Lista përfshin Alon (Shtetet e Bashkuara), Conoco Philips (Mbretëria e Bashkuar), Eni (Itali), Gazprom (Rusi), Glencore (Zvicër), Hellenic Petroleum (Greqi), MOL (Hungari), Occidental Oil and Gas Holding Corporation (Shtetet e Bashkuara), OMV (Austri), PKN Orlen (Poloni) dhe TNK-BP (Shtetet e Bashkuara).