China National Petroleum Corporation (CNPC) is an important state-owned backbone enterprise and one of the world's major oil and gas producers and suppliers. It is a comprehensive international energy company that integrates domestic and international oil and gas exploration and development, new energy, refining and sales, new materials, support and services, capital and finance. In 2023, it will rank third in the comprehensive ranking of the world's 50 major oil companies and fifth in the Fortune Global 500 list of major companies.