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

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BowLeven (BLVN)
UK 100

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