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).
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).