Category: Shale Gas

JILIN ELECTRIC POWER CO.,LTD.

Hubei Energy Group Co.,Ltd

Shanxi Blue Flame Holding Company Limited

Chongqing Changjiang River Moulding Material (Group) Co., Ltd.

Xinjiang Zhundong Petroleum Technology Co., Ltd.

ORIENTAL ENERGY CO., LTD.

Shanghai SK Petroleum & Chemical Equipment Corporation Ltd

Yantai Jereh Oilfield Services Group Co., Ltd.

SHANDONG POLYMER BIOCHEMICALS CO.,LTD.

Jiangsu Changbao Steel Tube Co., Ltd.

Shandong Molong Petroleum Machinery Co.,Ltd

Linzhou Heavy Machinery Group Co., Ltd.

CHINA OIL HBP SCIENCE&TECHNOLOGY CO.,LTD

Zhejiang Renzhi Co.,Ltd.

Beiken Energy Group Co.,Ltd.

Beijing Haixin Energy Technology Co., Ltd.

Haimo Technologies Group Corp.

NEW JCM GROUP CO.,LTD

Tong Petrotech Corp.

SINO GEOPHYSICAL CO.,LTD