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 | ||