1 (5) | China National Petroleum Corp * | CHN | ![]() | |
2 (6) | PetroChina Co Ltd | CHN | ![]() | |
3 (13) | China Petroleum and Chemical Corporation * | CHN | ![]() | |
4 (49) | State Grid Corporation of China * | CHN | ![]() | |
5 (136) | China National Offshore Oil Corp * | CHN | ![]() | |
6 (289) | China Railway Engineering Corp * | CHN | ![]() | |
7 (295) | Petrobras, Brazil | BRA | ![]() | |
8 (315) | China Railway Group Ltd | CHN | ![]() | |
9 (375) | China Railway Eryuan Engineering Group Co Ltd | CHN | ![]() | |
10 (513) | China Coal Research Institute | CHN | ![]() | |
11 (995) | Daqing Oilfield Co Ltd, CN | CHN | ![]() | |
12 (1098) | Gazprom Group, Russian Federation | RUS | ![]() |