•CNPC – Sichuan Petroleum Administration Bureau

•PetroChina Company Limited – Southwest Gas Field Subsidiary

•PetroChina Company Limited – Tarim Oil Field Subsidiary

•PetroChina Company Limited – Changqing Oil Field Subsidiary

•CNPC–Daqing Petroleum Administration Bureau

•PetroChina Company Limited – Daqing Oil Field Co.,Ltd.

•CNPC–Liaohe Petroleum Administration Bureau

•Petrochina Company Limited – Liaohe Oil Field Subsidiary

•CNPC– CNODC

•CNPC– CPECC

•CNPC– CPE

•CNPC– Tibet Sales Subsidiary

•CNPC– Dalian international Storage & Transpotation Co., Ltd.

•Sinopec Corp. – SINOPEC Shengli Oil Field Co. Ltd.

•Sinopec – Shengli Oil Field Co., Ltd.

•Sinpec – Shengli Engineering Design & Consultation Co., Ltd.

•Sinopec – Northwest Subsidiary

•Sinopec – Zhongyuan Subsidiary

•Sinopec Corp. –SINOPEC Beijing Yanshan Petrochemical Co., Ltd.

•CNPC- PetroChina Jinxi Petrochemical Co., Ltd.

•CNODC

•SINOCHEM CORPORATION – Sinochem Shandong Fertilizer Co., Ltd.

•SINOCHEM CORPORATION – Tianji Sinochem Gaoping Chemical Engineering Co., Ltd.

•Lanqiao Petrochemical Co. Ltd. of Rizhao, Shandong Province

•Hefei Gas Group Co., Ltd. of Anhui Province

•Changsha Xin’ao Gas Co., Ltd. of Hunan Province

•Wuhan Natural Gas Co., Ltd. of Hubei Province

•Xiangfan Daming Natural Gas Co., Ltd. of Hubei Province

•Dalian Coal Gas Company of Liaoning Province

•Dandong Coal Gas Rebuild Engineering Headquarter of Liaoning Province

•Xianyang Coal Gas Company of Shaanxi Province

•Yan’an Gas Company of Shaanxi Province

•Yantai Natural Gas Engineering Preparation Department of Shandong Province

•Coal Gas Modification Headquarter of Dandong, Liaoning Province

•Guozhen Energy Development Co. Ltd. of Fuyang, Anhui Province

•Chengdu Water Supply Company of Sichuan Province

•Guangzhou Water Supply Company of Guangdong Province

•Hangzhou Water Supply Company of Zhejiang Province

•Zhengzhou Water Supply Company of Henan Province

•Lanzhou Water Supply Company of Gansu Province

•Xi’an Water Supply Company of Shaanxi Province

•Harbin Water Supply Company of Heilongjiang Province

•Dalian Water Supply Company of Liaoning Province

•Jinan Water Supply Company of Shandong Province

•Shijiazhuang Water Supply Company of Hebei Province