Holding(s) in Company

Gulf Keystone Petroleum Ld
11 May 2007


TR-1: NOTIFICATION OF MAJOR INTERESTS IN SHARES


(1). Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:


GULF KEYSTONE PETROLEUM LTD


2. Reason for the notification (please state Yes/No): (   )

An acquisition or disposal of voting rights:                               ( X )

An acquisition or disposal of financial instruments which may result 
in the acquisition of shares already issued to which voting rights are 
attached:                                                                  (   )

An event changing the breakdown of voting rights:                          (   )

Other (please specify) :                                                   (   )





 
3. Full name of person(s) subject to the notification obligation:


FIDELITY INTERNATIONAL LIMITED (FIL)


 

4. Full name of shareholder(s) (if different from 3.):


SEE ATTACHED SCHEDULE

 

5. Date of the transaction and date on which the threshold is crossed or reached
if different):


9 MAY 2007

 

6. Date on which issuer notified:


11 MAY 2007
 

7. Threshold(s) that is/are crossed or reached:


5%

 

8. Notified details:


 


A: Voting rights attached to shares

 
Class/type of shares            Situation previous to  
if possible using the           the Triggering         
ISIN CODE                       transaction        

                       Number of shares       Number of voting Rights 

ISIN
BMG4209G1087           13,937,943             13,937,943



 

                     Resulting situation after the triggering transaction 
 
Class/type of shares Number of shares  Number of voting rights    % of voting rights  
if possible using                                                                 
the ISIN CODE                                                                         

                     Direct            Direct     Indirect        Direct    Indirect  

ISIN
BMG4209G1087                                      5,918,948                 2.14%
 

B: Financial Instruments

Resulting situation after the triggering transaction 

Type of     Expiration Date  Exercise/Conversion Number of voting     % of voting     
financial                    Period/ Date        rights that may be   rights          
instrument                                       acquired if the                      
                                                 instrument is                        
                                                 exercised/                           
                                                 converted.                           

 


Total (A+B)


Number of voting rights       % of voting rights 


5,918,948                     2.14%
 


9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:


SEE ATTACHED SCHEDULE

 


Proxy Voting:

 
10. Name of the proxy holder:


FIDELITY INTERNATIONAL LIMITED (FIL)
 

11. Number of voting rights proxy holder will cease to hold:


8,018,995


 

12. Date on which proxy holder will cease to hold voting rights:


9 MAY 2007

 

13. Additional information:



 

14. Contact name:


TERESA GARRY

 

15. Contact:

[e-mail]




FIL

ISSUER NAME:                              GULF KEYSTONE PETROLEUM LTD

CURRENT OWNERSHIP PERCENTAGE:             2.14%

TOTAL SHARES HELD:                        5,918,948

ISSUED SHARE CAPITAL:                     275,480,140


FIDELITY INTERNATIONAL LIMITED (FIL) IS THE PARENT HOLDING COMPANY FOR VARIOUS DIRECT AND INDIRECT SUBSIDIARIES, 
INCLUDING FIDELITY FUND MANAGEMENT LIMITED (FFML), FIDELITY INVESTMENT SERVICES LTD (FISL), FIDELITY GESTION (FIGEST), 
FIDELITY INVESTMENTS ADVISORY (KOREA) LIMITED (FIAKL), FIDELITY INVESTMENTS MANAGEMENT (HONG KONG) LIMITED (FIMHK), 
FIDELITY PENSION MANAGEMENT (FPM), FIDELITY INVESTMENTS JAPAN (FIJ) AND FIDELITY INVESTMENTS INTERNATIONAL (FII), 
INVESTMENT MANAGERS FOR VARIOUS NON-US INVESTMENT COMPANIES AND INSTITUTIONAL CLIENTS.

                                                                                                       MANAGEMENT
                                        SHARES HELD               NOMINEE                              COMPANY


                                          131,284                STATE STR BK AND TR CO LNDN(S           FPM

                                          776,300                NORTHERN TRUST LONDON                   FPM

                                          957,238                JP MORGAN, BOURNEMOUTH                  FPM

                                        2,489,325                JP MORGAN, BOURNEMOUTH                  FISL

                                          869,043                BROWN BROS HARRIMN LTD LUX              FIL

                                          695,760                JP MORGAN, BOURNEMOUTH                  FII





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