Drilling companies

CNPC (China National Petroleum Corporation)

Sinopec (China National Petroleum & Chemical Corporation)

CNOOC (China National Offshore Oil Corporation)

 

Drilling Rigs Manufacturers:

Sichuan Honghua Petroleum Equipment Co., Ltd.

Baoji Oilfield Machinery Co., Ltd.

SJ Petroleum Machinery Co.

RG Petro-Machinery (Group) Co., Ltd.

Zhongman Petroleum and Natural Gas Group

 

BOP Manufacturers:

Rongsheng Machinery Manufacture

Shanghai Shenkai Wellhead Equipment Co., Ltd

 

Trading companies:

CPTDC

Yantai Jereh Oilfield Services Group Co., Ltd