22nd May 2007 14:30
Rockhopper Exploration plc22 May 2007 Rockhopper Exploration PLC ("the Company") 22 May 2007 Notifiable Interest A form TR-1 containing the following information has been received by theCompany. TR-1 notification of major interests in shares 1. Identity of the issuer or the underlying issuer of existing shares to whichvoting rights are attached: Rockhopper Exploration PLC 2. Reason for the notification An acquisition or disposal of voting rights 3. Full name of person(s) subject to the notification obligation: Royal London Asset Management 4. Full name of shareholder(s) (if different from 3): N/A 5. Date of the transaction (and date on which the threshold is crossed orreached if different): 15 May 2007 6. Date on which issuer notified: 21 May 2007 7. Threshold(s) that is/are crossed or reached: 3% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous Resulting situation after the triggering shares to Triggering transactionif possible transaction Notification required under DTR transitionalusing ISIN provision 7 CODE Number of Number Number of Number of voting % of voting Shares of shares rights rights Voting Rights Direct Direct Indirect Direct Indirect GB00B0FVQX23 2,250,000 2.9737 2,300,000 2,300,000 N/A 3.0398 N/A B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting rights that may % offinancial date Conversion be acquired if the instrument is votinginstrument Period/ exercised/ converted rights DateN/A N/A N/A N/A N/A Total (A+B) Number of voting rights % of voting rights 2,300,000 3.0398 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable:N/A 10. Name of the Proxy holder:N/A 11. Number of voting rights proxy holder will cease to hold:N/A 12. Date on which proxy holder will cease to hold voting rights:N/A 13. Additional information:N/A 14. Contact name:N/A 15. Contact telephone number:N/A For further information, please contact: Rockhopper Exploration plc www.rockhopperexploration.co.ukSam Moody - Managing Director 01722 414 419 Aquila Financial Ltd www.aquila-financial.comPeter Reilly 020 7202 2601 This information is provided by RNS The company news service from the London Stock ExchangeRelated Shares:
Rockhopper