05.07.2009
The five US firms: Exxon (Esso), Gulf, Texaco, Mobil, Chevron (Socal); two UK firms: Shell and BP and one French firm CFP-Total
The five US firms: Exxon (Esso), Gulf, Texaco, Mobil, Chevron (Socal); two UK firms: Shell and BP and one French firm CFP-Total