Holding(s) in Company

Borders & Southern Petroleum plc
25 October 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:

Borders & Southern Petroleum plc



2. Reason for the notification (please place an X inside the appropriate bracket
/s):



An acquisition or disposal of voting rights: (    )



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) : (X)

Increase in Share Capital



3. Full name of person(s) subject to the notification obligation:

Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership



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

Morstan Nominees Ltd (Registered Shareholder)



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

N/A



6. Date on which issuer notified:

25/10/2007



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

14%



8. Notified details:

.................



A: Voting rights attached to shares


Class/type of shares if possible              Situation previous to the Triggering transaction
using the ISIN CODE
                                  Number of shares                   Number of voting Rights


Common Shares                     27,125,000                         27,125,000


Resulting situation after the triggering transaction


Class/type of shares if      Number of shares         Number of voting rights           % of voting rights
possible using the ISIN CODE
                             Direct                   Direct       Indirect             Direct      Indirect


                             0                        0            27,125,000           0%          13.96%



B: Financial Instruments

Resulting situation after the triggering transaction


Type of         Expiration Date      Exercise/Conversion       Number of voting rights     % of voting rights
financial                            Period/ Date              that may be acquired if the
instrument                                                     instrument is exercised/
                                                               converted.





Total (A+B)
Number of voting rights        % of voting rights


27,125,000                     13.96



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

Lasdowne Partners International is the parent undertaking of Lansdowne Partners
Limited



Proxy Voting:



10. Name of the proxy holder:

Lansdowne Partners Limited



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:

Howard Obee



15. Contact telephone number:

     020 7661 9348






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