(Hong Kong, April 27, 2018) - CNOOC Limited (the “Company”, SEHK: 00883, NYSE: CEO, TSX: CNU) today announced changes in directors of the Company. Mr. Wang Dongjin has been appointed as a Non-executive Director and a member of the Remuneration Committee of the Company. Mr. Wu Guangqi has resigned as a Non-executive Director and a member of the Remuneration Committee of the Company due to retirement. The aforementioned changes take effect from 27 April 2018.

Mr. Wu has served on the Company’s Board of Directors for nearly 13 years, as an Executive Director and Non-executive Director successively. The Board of Directors would like to express their appreciation and gratitude to Mr. Wu Guangqi for his outstanding contributions to the Company during his term as a director.

Mr. Yang Hua, Chairman of the Company said, "On behalf of the Board of Directors, I extend a warm welcome to Mr. Wang Dongjin on his appointment as Non-executive Director. Mr. Wang has significant experience in the oil and gas industry. The Board will work closely together to promote the Company’s sustainable development and create greater value for our shareholders."

Wang Dongjin
Born in 1962, Mr. Wang is a professor-level senior engineer and received a Bachelor of Science degree in Petroleum Drilling from Development Department of China University of Petroleum and a Doctor of Science degree in Petroleum Engineering Management from China University of Petroleum-Beijing in 2012. From July 1995 to December 1997, he was appointed as Deputy Director-General of Jiangsu Petroleum Exploration Bureau. From December 1997 to October 2002, he was appointed as Vice President of China National Oil & Gas Exploration and Development Corporation (“CNODC”). From December 2000 to October 2002, he also served as President of CNPC International (Kazakhstan) Ltd. and President of Aktobe Munai Gas Corp. From October 2002 to September 2008, he served as President of CNODC. From January 2004 to September 2008, he was appointed as Assistant President of China National Petroleum Corporation (“CNPC”) and Vice Chairman of CNODC. From September 2008 to March 2018, he served as Vice President of CNPC. From May 2011 to May 2014, he was concurrently appointed as Director of PetroChina Company Limited (“PetroChina”). From July 2013 to March 2018, he was concurrently appointed as President of PetroChina. From May 2014 to March 2018, he served as Vice Chairman of PetroChina. In March 2018, Mr. Wang was appointed as a Director of China National Offshore Oil Corporation. Mr. Wang was appointed as a Non-executive Director of the Company with effect from 27 April 2018.