CNOOC Limited
 
 
65th Floor
 
Bank of China Tower
One Garden Road
Central, Hong Kong
 
 
April 17, 2014
 
VIA EDGAR
U.S. Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
 
 
Re:                 Notice of disclosure filed in Exchange Act Annual Report under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act of CNOOC Limited
 
 
Dear Sirs:
 
Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that CNOOC Limited has made disclosure pursuant to those provisions in its Annual Report on Form 20-F for the year ended December 31, 2013, which was filed with the Securities and Exchange Commission on April 17, 2014.
 
 
 
Respectfully submitted,
 
     
 
CNOOC Limited
 
     
     
 
By:
/s/ Hua Zhong
 
 
Name:
Hua Zhong
 
 
Title:
Joint Company Secretary