COSL signed a turnkey drilling service contract with Devon Energy

(14 May 2008 - Beijing) China Oilfield Services Limited ( COSL or the Company , HKSE stock code: 2883, SSE stock code: 601808) announces that representing COSL, Executive Vice President and Chief Operating Officer Li Yong has recently signed a turnkey drilling service contract with Devon Energy (China) Ltd. ( Devon China ) which was represented by David Lindsay, Devon China s general manager.

Mr. Li Yong, Executive Vice President and Chief Operating Officer of COSL said at the signing ceremony: Devon Energy Corp. is a long term partner of COSL and there had previously been many successful cases of cooperation between us. The signing of this service contract marks an expansion of the space where we can cooperate. COSL has pledged to adhere to its corporate motto of We must do better to deliver high quality services, as we always do. .

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