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Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement , make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement . CNOOC Limited ( 中國 海洋 石油 有限公司 ) ( Incorporated in Hong Kong with limited liability under the Companies Ordinance ) ( Stock Code : 00883 ) Announcement of 2021 Interim Results ( Unaudited ) FINANCIAL AND BUSINESS SUMMARY Oil and gas sales Net production of oil and Consolidated net profit gas * Basic earnings per share Diluted earnings per share Interim dividend ( tax inclusive ) First half of 2021 % change over First half of 2020 278.1 million BOE 7.9 % RMB100.63 billion 51.7 % RMB33.33 billion 221.0 % RMB0.75 221.0 % RMB0.75 221.0 % HK0.30 per share 50 % Including our interests in equity - accounted investees , which is approximately 9.6 million BOE . CHAIRMAN'S STATEMENT Dear Shareholders , With the gradual recovery of the world economy , the international oil prices rebounded in the first half of 2021. However , the evolution of the COVID - 19 pandemic and the accelerated transformation of the energy industry have brought huge changes to the development environment of the Company . In view of the complicated situation , we strengthened the business strategy , progressed firmly with production and operation tasks , and reserves and production increased to a new level . The commencement of a major project inspired all employees , net profit increased significantly , and technology research and low - carbon development moved ahead steadily , as evidenced by outstanding operating results . In the first half of 2021 , the Company continued to increase reserves and production . A total of nine new discoveries were made , and 14 oil and gas structures were successfully appraised . In China , Kenli 10-2 structure was efficiently appraised with proved in - place volume of nearly 100 million tons of oil equivalent . Luda 10-6 structure was appraised with high output of oil and gas , and was initially proved to be a medium - sized oil and gas field . Wenchang 9-7 structure was appraised with a breakthrough , becoming the largest oil discovery in the Wenchang Sag in the past 10 years . Through expanded exploration , high output of gas was obtained in the Baodao 21-1 structure , which initially demonstrated the prospect of 100 billion cubic meters of natural gas resources . Overseas , two new discoveries in the Stabroek block of Guyana were made . These discoveries further strengthened our resource base for sustainable development . - 1 -