UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM 6-K
 
Report of Foreign Private Issuer
 
Pursuant to Rule 13a-16 or 15d-16
of the Securities Exchange Act of 1934

For the month of July 2011

Commission File Number 1-14966


CNOOC Limited
(Translation of registrant’s name into English)
   
65th Floor
Bank of China Tower
One Garden Road
Central, Hong Kong
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F      X          Form 40-F ___

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ___        No     X   

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):  Not applicable

 
 
 
 
 
Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



   
CNOOC Limited
  
       
       
                                                                          By:
  
/s/ Jiang Yongzhi
  
                                                                     Name:
  
Jiang Yongzhi
  
                                                                       Title:
  
Joint Company Secretary
  
Dated: July 15, 2011
      

 
 
 
 

EXHIBIT INDEX

 
Exhibit No. Description
   
99.1
Press release dated July 15, 2011, entitled “COPC Announced the Amount of Fluid Spilled from Penglai 19-3 Oilfield”.
 
 
 
 
 
 
 
Exhibit 99.1
 
 
 
 
For Immediate Release
 
COPC Announced the Amount of Fluid Spilled from Penglai 19-3 Oilfield

(Hong Kong, July 15, 2011) - CNOOC Limited (the “Company”, NYSE: CEO, SEHK: 0883) announced, according to the latest statement by ConocoPhillips China Inc (“COPC”), the Operator of Penglai 19-3 field, the current estimate of the aggregate amount of fluid spilled from the two incidents is approximately 1,500 barrels (240 cubic meters) of oil and oil-based drilling fluids. 

According to COPC, it is working with independent experts to validate the total spill quantity.

As the non-operator, the Company will continue to urge and assist COPC to complete the clean-up work as quickly as possible, and to reduce the impact of the oil spill incidents on marine environment according to the requirement of the State Oceanic Administration of People’s Republic of China.

Penglai19-3 field is an oil field under Production Sharing Contract (“PSC”) with COPC. COPC is the Operator and responsible for the management of daily operations. CNOOC Limited holds 51% of participating interests under the PSC.


– End –
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 of1995, 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 analysis made by the Company in light of its experience and perception of historical trends, current conditions and expected future developments, as well as other factors that the Company believes reasonable under the circumstances. However, whether actual results and developments will meet the Company’s expectations and predictions depends on a number of risks and uncertainties which could cause the actual results, performance and financial
 
 
 
 
 
conditions to differ materially from the Company’s expectations, including those associated with fluctuations in crude oil and natural gas prices, the exploration or development activities, the capital expenditure requirements, the business strategy, the highly competitive nature of the oil and natural gas industries, the foreign operations, environmental liabilities and compliance requirements, and economic and political conditions in the People’s Republic of China. For a description of these and other risks and uncertainties, please see the documents the Company has filed from time to time with the United States Securities and Exchange Commission, including 2010 Annual Report on Form 20-F filed on April 29, 2011.

Consequently, all of the forward-looking statements made in this press release are qualified by these cautionary statements. The Company cannot assure that the actual results or developments anticipated will be realized or, even if substantially realized, that they will have the expected effect on the Company, its business or operations.
*** *** *** ***

For further enquiries, please contact:
Mr. Jiang Yongzhi
Joint Company Secretary and General Manager of Investor Relations Department
CNOOC Limited
Tel: +86-10-8452-1731
Fax: +86-10-8452-1441
E-mail: jiangyzh2@cnooc.com.cn

Ms. Ding Jianchun
Manager, Media / Public Relations
CNOOC Limited
Tel: +86-10-8452-2973
Fax: +86-10-8452-1441
E-mail: dingjch@cnooc.com.cn

Ms. Sharon Fung
Ketchum Newscan Public Relations Ltd
Tel: +852-3141-8082
Fax: +852-2510-8199
E-mail: sharon.fung@knprhk.com