Holding(s) in Company

Gulf Keystone Petroleum Ld
28 June 2006



Letter to: Gulf Keystone Petroleum Ltd 
Dated: 27 June 2006


Amendment 2


NOTIFICATIONS UNDER BYE-LAWS SECTION 168.3.1

1.     Company in which shares are held:       Gulf Keystone Petroleum Ltd

2.     Notifiable Interest:     Ordinary Shares

       (A)     FMR Corp.
               82 Devonshire Street 
               Boston, MA 02109

               Parent holding company of Fidelity Management & Research Company 
               (FMRCO), investment manager for US mutual funds, and Fidelity 
               Management Trust Company (FMTC), a US state chartered bank which 
               acts as a trustee or Investment manager of various pension and 
               trust accounts. (See Schedule A for listing of Registered 
               Shareholders and their holdings).

       

       (B)     Fidelity International Limited (FIL)
               P.O. Box HM 670
               Hamilton HMCX, Bermuda

               Parent holding company for various direct and indirect 
               subsidiaries, including Fidelity Investment Services Ltd. 
               (FISL), Fidelity Gestion (FIGEST), Fidelity Investments Advisory 
               (Korea) Limited (FIA(K)L), Fidelity Investments Management 
               (Hong Kong) Limited (FIMHK), Fidelity Pension Management (FPM) 
               and Fidelity Investments International (FII), investment managers 
               for various non-US Investment companies and institutional 
               clients.

3.     The notifiable interests also comprise the notifiable interest of:

               Mr. Edward C. Johnson 3d 
               82 Devonshire Street 
               Boston, MA 02109


       A principal shareholder of FMR Corp. and Fidelity International Limited

4.     The notifiable interests include interest held on behalf of authorized 
       unit trust schemes In the U.K., notwithstanding the exemption from 
       reporting pursuant to Section 209 (1)(h) of the Companies Act 1985.

5.     These notifications of disclosable interests constitute separate 
       notifications of interest in the shares and are combined solely for the 
       purposes of clarity and efficiency. Nothing herein should be taken to 
       indicate that FMR Corp. and its direct and indirect subsidiaries, 
       Fidelity International Limited and its direct and indirect subsidiaries 
       or Mr. Edward C. Johnson 3d act as a group or In concert in respect of 
       the disclosed interests, or that they are required to submit these
       notifications on a joint basis.

 
6.    The disclosure interests arise under section 208 (4) (b) of the Act, 
      namely where a person, not being the registered holder,is entitled to 
      exercise a right conferred by the holding of the shares or to control the 
      exercise of such rights, or under section 203 of the Act respectively.



From: Fidelity International Limited



Schedule A

Security: GULF KEYSTONE PETROLEUM LTD


Current ownership percentage:          3.95%

Total Shares Held:                10,016,635

Shares in issue:                 253,732,140

Change in holdings since       
last filing:                     - (557,700) ordinary shares

                                        
                                    MANAGEMENT    NOMINEES/REGISTERED NAME
                   SHARES HELD       COMPANY     

                    2,957,735          FPM        STATE STR BK AND TR CO LNDN (S
                    2,004,200          FPM        NORTHERN TRUST LONDON
                    1,971,000          FPM        JP MORGAN, BOURNEMOUTH
                      624,700          FPM        HSBC BANK PLC
                       24,200          FPM        BANK OF NEW YORK BRUSSELS
                    1,697,700          FISL       JP MORGAN, BOURNEMOUTH
                      737,100          FIL        JP MORGAN, BOURNEMOUTH




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