Holding(s) in Company

Gulf Keystone Petroleum Ld
18 August 2005


                Gulf Keystone Petroleum Limited ("the Company")

                               Holding in Company

The Company has been notified on 18 August 2005 by Ennismore Fund Management
Limited that, as of 17 August 2005, it is interested in 8,086,533 common shares
of US$0.01 each ("Common Shares"), representing 3.19 per cent. of the Company's
issued Common Share capital.

18 August 2005




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