China Oilfield Services Limited — Proxy Solicitation & Information Statement 2011

Jan 21, 2011

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(Incorporated in the People’s Republic of China as a joint stock limited liability company) (Stock code: 2883)

Reply Slip for H Share Class Meeting

I(We)of(address),telephone number:and fax number:,being the holder(s) ofH Share(s) ofChina Oilfield Services Limited (the “Company”) hereby confirm that I(We) wish to attend or appoint aproxy to attend (on my(our) behalf) the H Share Class Meeting (“H Share Class Meeting”) to be held on8 March 2011 (Tuesday) at 3:45 p.m. (Beijing time) at Room 504, CNOOC Plaza, 25 Chaoyangmen NorthAvenue, Dongcheng District, Beijing, the PRC.					of,
				and fax number:	,

Signature:

Date: 2011

Note: Shareholders who intend to attend the H Share Class Meeting must complete and return the written replies for attending the H Share Class Meeting to the Company’s registered office by facsimile or post no later than 15 February 2011 (Tuesday): Address: 65/F., Bank of China Tower 1 Garden Road, Hong Kong Tel: (852) 2213 2515 Fax: (852) 2525 9322