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(A joint stock limited company incorporated in the People's Republic of China with limited liability)

(Stock Code: 2883) AMENDMENTS TO THE ARTICLES OF ASSOCIATION

This announcement is made by the Company pursuant to Rule 13.51(1) of the Rules Governing the
Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules").
The board of directors (the "Board") of China Oilfield Services Limited (the "Company") announces that the Company has completed the placing of H Shares on 15 January 2014 (the "Placing") and the registered capital and total capital of the Company would need to be changed. Pursuant to the authority granted to the Board at the 2012 annual general meeting held on 24 May 2013 and the authorisation by the Board to Mr. Li Yong, the Chief Executive Officer of the Company, to handle all matters in relating to the amendments to the articles of association of the Company (the "Articles of Association") as a result of the Placing, Mr. Li Yong has approved the following amendments to the Articles of Association (the "Amendments"):

1. Article 16

Article 16 of the Articles of Association will be deleted in its entirety and substituted therefor by the following:
"Following approval by the State Council authorities in charge of securities, the total amount of ordinary shares that the Company may issue is 4,771,592,000 shares. The number of shares issued to the promoter at the time of establishment was 2,600,000,000 shares, representing 54.49% of the total number of ordinary shares that may be issued by the Company."

2. Article 17

Article 17 of the Articles of Association will be deleted in its entirety and substituted therefor by the following:
"Upon its establishment, the Company has issued for the first time 1,395,320,000 foreign investment shares listed outside the People's Republic of China (in the event that the 15% over-allotment option
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has not been exercised), accounting for 34.92% of the total number of ordinary shares that may be issued by the Company.
Upon the exercise of 15% over-allotment option, the issuance of 500,000,000 A shares, the assignment of the promoter's shares to the Steering Committee of the National Social Security Fund and placing of 276,272,000 H shares, the composition of the Company's share capital is (1) 4,771,592,000 ordinary shares, of which the promoter shall hold 2,410,468,000 A shares, accounting for 50.52% of the total number of ordinary shares that have been issued by the Company; (2) the shareholders of H shares shall hold 1,811,124,000 foreign investment shares listed outside the People's Republic of China, accounting for 37.96% of the total number of ordinary shares that have been issued by the Company; (3) the other shareholders of A shares shall hold 550,000,000 A shares, accounting for 11.53% of the total number of ordinary shares that have been issued by the Company."

3. Article 20

Article 20 of the Articles of Association will be deleted in its entirety and substituted therefor by the following:
"The registered capital of the Company is RMB4,771,592,000."
In accordance with the authorisation granted to the Board at the 2012 annual general meeting, no general meeting of the Company would need to be held to approve the Amendments.
By order of the Board

China Oilfield Services Limited Yang Haijiang

Company Secretary

27 January 2014

As at the date of this announcement, the executive directors of the Company are Messrs. Li Yong and Li Feilong; the non-executive directors of the Company are Messrs. Liu Jian (Chairman) and Zeng Quan; and the independent non-executive directors of the Company are Messrs. Tsui Yiu Wa, Fong Wo, Felix and Chen Quansheng.

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