Cheng Wei Chang

Shaanxi Yanchang Petroleum (Group) Co., Ltd. engages in the oil and gas exploration. It focuses on development, comprehensive utilization, and deep transformation in energy chemical. Its business center covered oil and gas exploration; oil and gas development; petroleum refining and chemical industry; oil, gas, coal, and salt comprehensive chemical industry; pipeline transportation; product sales; construction equipment manufacturing; and technology research and development. Its products and services include oil and gas products; chemical products; equipment products; and other products such as raw coal, coke, coal tar, coal chemical derivatives, and grid- connected power generation. The company was founded in 1905 and is headquartered Xi'an, China.