1 (298) | Petrobras Brasil | BRA | ![]() | |
2 (300) | China Petroleum and Chemical Corporation * | CHN | ![]() | |
3 (327) | China National Petroleum Corp * | CHN | ![]() | |
4 (338) | China National Offshore Oil Corp * | CHN | ![]() | |
5 (426) | PetroChina Co Ltd | CHN | ![]() | |
6 (437) | Marine Design and Research Institute of China | CHN | ![]() | |