Holding(s) in Company

Pantheon Resources PLC
03 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 which
voting 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 the
acquisition 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 or
reached 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 the
shares                                        triggering transaction
                 triggering transaction

If possible      Number of    Number of       Number of    Number of    % voting
using the ISIN   shares       voting          shares       voting       rights
code
                              rights                       Rights       Direct
                                                           Indirect
GB00B125SX82      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    % voting
financial    date       Conversion    be acquired if this instrument is   rights
instrument              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 the
financial 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





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