China Petroleum & Chemical is an energy and chemical company, that, via its subsidiaries, engages in oil and gas and chemical operations in the People's Republic of China. Oil and gas operations consist of exploring for, developing and producing crude oil and natural gas; transporting crude oil and natural gas by pipelines; refining crude oil into finished petroleum products; and marketing crude oil, natural gas and refined petroleum products. Chemical operations include the manufacture and marketing of a range of chemicals for industrial uses. Co.'s principal business segments include: Exploration and Production, Refining, Marketing and Distribution, Chemicals, and Corporate and Others.