Company list
- Jilin Oilfield Company
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- Yumen Oilfield
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- CNPC Greatwall Drilling Co., Ltd.（GWDC）
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- CNPC Chuanqing Drilling Engineering Company Limited（CCDC）
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- Bureau of Geophysical Prospecting INC.,China National Petroleum Corporation（BGP INC）
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- China National Logging Corporation（CNLC）
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- Research Institute of Petroleum Exploration and Development（RIPED）
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- CNPC Engineering Technology R&D Company Ltd.（CPET）
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- PetroChina Company Limited Petrochemical Research Institute（PRI）
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- China Huanqiu Contracting & Engineering Co.,Ltd.（HQC）
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- China Petroleum Pipeline Engineering Co., Ltd.（CPP）
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- CNPC Jichai Power Co. Ltd（JCPC）
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- China Petroleum Planning and Egineering Institute（CPPEI）
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- CNPC Economics & Technology Research Institute（ETRI）
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- CNPC Research Institute of Safety and Environmental Technology（RISE）
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- PetroChina Shenzhen Renewable Energy Research Institute Co., Ltd.
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- PetroChina Shanghai Advanced Materials Research Institute Co.Ltd
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- PetroChina Liaohe Oilfield Company
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- PetroChina ChangQing Field Company
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- PetroChina Tarim Oilfield Company
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- Petrochina Xinjiang Oilfield Company
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- Petrochina JiDong Oilfield Company
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- Petrochina ZheJiang Oilfield Company
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- CNPC BOHAI DRILLING ENGINEERING COMPANY LIMITED
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- Petrochina Lanzhou Petrochemical Company
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- PetroChina Dushanzi Petrochemical Company
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- PetroChina Guangxi Petrochemical Company
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- PetroChina Lubricant Company
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- PetroChina SiChuan Marketing Company
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- PetroChina International Co., Ltd.
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- Baoji Oilfield Machinery Co., LTD
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- BAOJI PETROLEUM STEEL PIPE CO,.LTD.
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- CNPC BOHAI EQUIPMENT MANUFACTURING CO.，LTD
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- CNPC Tubular Goods Research Institute (TGRI)
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- CNPC R&D (DIFC) Company Limited
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- Tuha Oilfield Company
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