Les enteprises concernées sont les suivantes: Amerada Hess (Royaume-Uni), BP (Royaume-Uni), British Gas (Royaume-Uni), Conoco (U.K.) (Royaume-Uni), Distrigaz (Belgique), Elf (France), National Power (Royaume-Uni), RAO "Gazprom" (Russie) et Ruhrgas (Allemagne).
The companies involved are: Amerada Hess (United Kingdom), BP (United Kingdom), British Gas (United Kingdom), Conoco (U.K.) (United Kingdom), Distrigaz (Belgium), Elf (France), National Power (United Kingdom), RAO "Gazprom" (Russia) and Ruhrgas (Germany).