No Casualties as Typhoon Koppu Blasts Huizhou Oilfields

HONG KONG, Sept. 23 /PRNewswire-Asia/ -- CNOOC Limited (the "Company" or "CNOOC Ltd.", NYSE: CEO, SEHK: 0883) announced today that benefiting from the CACT Operators Group's quick response, no casualties has occurred during Typhoon Koppu's recent attack to Huizhou oilfields. CACT Operators Group consists of CNOOC Ltd, Eni and Chevron.

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Koppu was rapidly strengthening as it hit Huizhou oilfields on 14th Sep, upgrading from tropical storm into typhoon, causing the displacement of the "Nanhai Faxian" FPSO's single point mooring (SPM) system. Due to the preparation in advance, Typhoon Koppu did not cause any casualties.

After Koppu swept through, the Company arranged ROV to check the underwater facilities of Huizhou oilfields. According to the examination, 4 anchors and the delivery hose to the FPSO are proved to be broken.

Till now, the situation on "Nanhai Faxian" is under control, all staffs and materials have been ensured. The Company has quickly gathered relevant expertise and service providers to launch with technical solutions and to tug the FPSO to safe areas as soon as possible.

Meanwhile, we, together with Eni and Chevron, are on the progress to come up with temporary recovery plans for the oilfields. Before Koppu, The production capacity of Huizhou oil fields was approximately 41,000 barrels of oil, and over 33 million cubic feet of natural gas per day.

CACT Operators Group maintains appropriate insurance coverage of the operations related to Huizhou oilfields.

Mr. Yang Hua, President of the Company commented: "The Company and the CACT Operators Group have been paying great attention to health, safety and environment protection during operations. Thanks to this long standing effort and full preparation before the Typhoon Koppu, no casualties has occurred to Huizhou oil fields. We will be working closely with the partners to establish appropriate measures to settle engineering issues and to insure the oilfields back to production as early as possible."

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 2008 Annual Report on Form 20-F filed on May 8, 2009.

For further enquiries, please contact:

Mr. Xiao Zongwei

Joint Company Secretary and General Manager

Investor Relations Department

CNOOC Limited

Tel: +86-10-8452-1646

Fax: +86-10-8452-1441

Email: xiaozw@cnooc.com.cn

Ms. Sharon Fung

Ketchum Newscan Public Relations Ltd

Tel: +852-3141-8082

Fax: +852-2510-8199

Email: Sharon.fung@knprhk.com