 HONG KONG, July 21, 2021 PRNewswire -- CNOOC Limited the Company, SEHK: 00883, NYSE: CEO, TSX: CNU today announced that Luda 29-1 oilfield has commenced production. Luda 29-1 oilfield is located in Liaodong Bay of Bohai Sea, with water depth of about 32 meters. 