CNOOC Limited Filed 2010 Annual Report on Form 20-F

HONG KONG, April 29, 2011 /PRNewswire-Asia/ -- CNOOC Limited (the "Company" or "CNOOC Ltd.", NYSE: CEO, SEHK: 00883) announced today it has filed with the United States Securities and Exchange Commission ("SEC") its 2010 annual report on Form 20-F ("annual report") that included audited financial statements for the year ended December 31, 2010.

The annual report is available on the Company's website at http://www.cnoocltd.com and also available on the SEC′s website at http://www.sec.gov.

To request a hard copy of the annual report, including the complete audited financial statements free of charge, please contact:

Notes to Editors:

More information about the Company is available at http://www.cnoocltd.com.

This press release includes "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995, including statements regarding expected future events, business prospectus or financial results. The words "believe", "intend", "expect", "anticipate", "project", "estimate", "plan", "predict" and similar expressions are intended to identify such forward-looking statements. These statements are based on assumptions and analyses made by us that we believe are reasonable under the circumstances. However, whether actual results and developments will meet our expectations and predictions depend on a number of risks and uncertainties which could cause our actual results, performance and financial condition to differ materially from our expectations. For a description of these and other risks and uncertainties, please see the documents we file from time to time with the United States Securities and Exchange Commission, including our 2010 Annual Report on Form 20-F filed on April 29, 2011.

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