Holding(s) in Company

Gulf Keystone Petroleum Ld
27 February 2006



27 February 2006


                             GULF KEYSTONE PETROLEUM LIMITED
                           ("Gulf Keystone" or the "Company")

                                  Holding in Company

Gulf Keystone has been informed that Artemis Investment Management Limited, and
certain of its subsidiaries, has a notifiable interest of 10,100,000 US$0.01
Common Shares, representing 3.98% of the issued share capital of the Company.


                                      End



Issued by Citigate Dewe Rogerson (020 7638 9571)


                      This information is provided by RNS
            The company news service from the London Stock Exchange