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 | ||