Holding(s) in Company

BowLeven Plc
21 February 2008



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:

Bowleven Plc


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

An acquisition or disposal of voting rights:                               (Yes)

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:

Credit Suisse Securities (Europe) Limited
 

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


 

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

18/02/2008
 

6. Date on which issuer notified:

20/02/2008
 

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

4%
 

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 

GB00B04PYL99           4,608,567                  4,608,567

 

                     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  

GB00B04PYL99         3,058,718         3,058,718    N/A            4.09%     N/A
 

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 

3,058,718                        4.09%
 

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

Credit Suisse Securities (Europe) Limited is a part of the Investment Banking
division of Credit Suisse ('CSIBD'), which is part of the Credit Suisse Group
('CSG').  CSIBD is a segregated business unit within CSG with an independent
management structure and exercises its voting rights independently from other
divisions of CSG


 


Proxy Voting:

 
10. Name of the proxy holder:


 

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


 

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


 

13. Additional information:


 

14. Contact name:

GLENDA BURFORD 

15. Contact telephone number:

+ 44 207 888 3599





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