CNOOC to increase stake in China Oilfield Services

China Oilfield Services (COSL) announced today that its controlling shareholder, CNOOC, intends to increase its holdings of both A shares and H shares in the company. The shareholding increase plan, set to be implemented within the next 12 months, will utilize between RMB300 million and RMB500 million in self-owned funds. As of April 8, 2025, CNOOC directly holds 2,410,847,300 A shares and 2,000 H shares, representing approximately 50.53% of the total issued shares of COSL. The increases will be made through centralized price bidding on the Shanghai Stock Exchange and transactions on The Stock Exchange of Hong Kong Limited. COSL will continue to monitor the implementation and perform information disclosure.