Holding(s) in Company

Gulf Keystone Petroleum Ld
17 March 2006




                Gulf Keystone Petroleum Limited ("the Company")

                               Holding in Company


The Company was notified on 16 March 2006 by Fidelity International Limited
("Fidelity") that FMR Corp. and its direct and indirect subsidiaries, Fidelity
and its direct and indirect subsidiaries and Mr. Edward C. Johnson 3rd (as a
principal share holder of FMR Corp. and Fidelity) are interested in 8,456,100
common shares of US$0.01 each ("Common Shares"), representing 3.33 per cent. of
the Company's issued Common Share capital.

The above interest is held as follows;

Registered Holder                                                   Number of
                                                                       Shares

STATE STR BK AND TR CO LNDN (S)                                      2,548,800
NORTHERN TRUST LONDON                                                1,881,700
JP MORGAN, BOURNEMOUTH                                               3,401,600
HSBC BANK PLC                                                          561,600
MELLON BANK                                                             62,400


17 March 2006




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