Zhe Yan Shi

China National Petroleum Corp. engages in the production and supply of oil and gas products. Its businesses include petroleum exploration and production, natural gas and pipelines, refining and marketing, oilfield services, engineering construction, petroleum equipment manufacturing and new energy development, as well as capital management, finance, and insurance services. The company was founded on February 9, 1990 and is headquartered in Beijing, China.

China Petroleum Engineering & Construction Corp. specializes in oil engineering, manufacturing, construction, and lump-sum contracting. The firm operates its business through following segments: Engineering Design, Construction and erection, Engineering Manufacture, Engineering Procurement and Technical Services. Its services include preliminary consultation on large oil projects, feasibility study, environmental impact and safety assessments, survey and measurement, design, procurement, construction, manufacturing, supervision, commissioning trial and operating maintenance as well as project engineering, procurement and construction () and project management contracting. The company was founded in 1998 and is headquartered in Beijing, China.