1 (19) | China National Petroleum Corp * | CHN | ![]() | |
2 (24) | PetroChina Co Ltd | CHN | ![]() | |
3 (32) | China Petroleum and Chemical Corporation * | CHN | ![]() | |
4 (140) | China National Offshore Oil Corp * | CHN | ![]() | |
5 (320) | PowerChina Huadong Engineering Corp Ltd, China | CHN | ![]() | |
6 (600) | Petrobras, Brazil | BRA | ![]() | |