Holding(s) in Company

3 May 2007 10:50

Pantheon Resources PLC03 May 2007 Pantheon Resources Plc 3 May 2007 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: Pantheon Resources 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 theacquisition of shares already issued to which voting rights are attached: No An event changing the breakdown of voting rights: No Other (please specify): No 3. Full name of person(s) subject to the notification obligation: Barclays PLC 4. Full name of shareholder(s) (if different from 3.): Barclays Stockbrokers Ltd 5. Date of the transaction (and date on which the threshold is crossed orreached if different): 1 May 2007 6. Date on which issuer notified: 2 May 2007 7. Threshold(s) that is/are crossed or reached: 8% to 9% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous to the Resulting situation after theshares triggering transaction triggering transaction If possible Number of Number of Number of Number of % votingusing the ISIN shares voting shares voting rightscode rights Rights Direct IndirectGB00B125SX82 1,393,407 1,393,407 1,407,110 1,407,110 9.05% B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ Number of voting rights that may % votingfinancial date Conversion be acquired if this instrument is rightsinstrument Period/Date exercised/converted Total (A+B) % of voting rights Number of voting rights 1,407,110 9.05 9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable: Barclays Stockbrokers Ltd 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: Justin Hondris 15. Contact telephone number: 020 7379 0118 This information is provided by RNS The company news service from the London Stock Exchange