For a description of these and other risks and uncertainties, please see the documents the Company files from time to time with the United States Securities and Exchange Commission, including the 2014 Annual Report on Form 20-F filed on 22 April 2015. Consequently, all of the forward-looking statements made in this press release are qualified by these cautionary statements. The Company cannot assure that the results or developments anticipated will be realised or, even if substantially realised, that they will have the expected effect on the Company, its business or operations. *** *** *** *** For further enquiries, please contact: Ms. Michelle Zhang Deputy Manager, Media / Public Relations CNOOC Limited Tel: +86-10-8452-6642 Fax: +86-10-8452-1441 E-mail: Ms. Cathy Zhang Hill+Knowlton Strategies Asia Tel: +852-2894 6211 Fax: +852-2576 1990 E-mail: SOURCE CNOOC Limited