Holding(s) in Company

Soco International PLC
23 March 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:

SOCO International plc
Sedol 0039446


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 )   
DTR Transitional Provision 7


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

1 Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership
2 Lansdowne UK Equity Fund Limited
3 Lansdowne Partners International Limited


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:
N/A


7. Threshold(s) that is/are crossed or reached:
6%


8. Notified details:

A: Voting rights attached to shares
Class/type of shares if possible using    Situation previous to the Triggering
the ISIN CODE                             transaction
                                          Number of       Number of voting
                                          shares          Rights
Ordinary Shares                           4,901,549       4,901,549


Resulting situation after the triggering transaction
Class/type of shares if possible  Number of  Number of voting    % of voting
using the ISIN CODE               shares     rights              rights
                                  Direct     Direct Indirect     Direct Indirect
Ordinary Shares                   0          0      4,901,549    0.0%   6.74%


B: Financial Instruments
Resulting situation after the triggering transaction
Type of     Expiration Exercise/     Number of voting rights that may   % of
financial   Date       Conversion    be acquired if the instrument is   voting
instrument             Period/ Date  exercised/ converted.              rights




Total (A+B)
Number of voting rights                  % of voting rights
4,901,549                                6.74%



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

Lansdowne Partners International Limited 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:
1 Lansdowne Partners Limited being the General Partner of Lansdowne Partners
Limited Partnership ('LPLP') controls 4,901,549 voting rights representing
6.74%.
2 Lansdowne UK Equity Fund Limited owns 4,667,818 voting rights representing
6.42%.
The balancing 0.32% of shares is held on behalf of other client funds managed by
LPLP.



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Contact: Carol Fan, SOCO International plc, tel [phone]


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