China National Offshore Oil Corporation (CNOOC), a mega state-owned enterprise (centralized enterprise) directly under the State-owned Assets Supervision and Administration Commission of the State Council of China, is headquartered in Beijing, with 98,750 employees, and four subsidiaries in Tianjin, Zhanjiang, Shanghai and Shenzhen. China National Offshore Oil Corporation (CNOOC) is ranked 64th among the world\'s top 500 companies in 2020 by Fortune magazine. It ranked 27th in the list of top 500 Chinese brands in 2015 organized by China Brand Value Institute.
