行业分类: 石油和天然气开采业

China Petroleum and Chemical Corporation

Guanghui Energy Co., Ltd.

Geo-Jade Petroleum Corporation

Shandong Xinchao Energy Corporation Limited

CNOOC Limited

PetroChina Company Limited

Zhongman Petroleum and Natural Gas Group Corp., Ltd.

Shanxi Blue Flame Holding Company Limited

SINO GEOPHYSICAL CO.,LTD

Sino Prima Gas Technology Co., Ltd.