Sale of Mongolian Assets

Soco International PLC
18 August 2005



                             SOCO International plc
                           ('SOCO' or 'the Company')


                     Completion of Sale of Mongolian Assets


SOCO is an international oil and gas exploration and production company,
headquartered in London traded on the London Stock Exchange and a constituent of
the FTSE 250 Index. The Company has continuing interests in Vietnam, Yemen,
Libya and Thailand with ongoing production operations in Yemen.



SOCO announces the completion of the sale of its wholly owned subsidiaries
holding the entirety of its interests in the Tamtsag Basin in Mongolia to Daqing
Oilfield Limited Company, a subsidiary of PetroChina, as set out in its
announcement of 1 April 2005.  The transaction was approved by SOCO shareholders
at an EGM on 10 May 2005.



Following completion of the sale, the Company has received the first tranche of
cash consideration of approximately US$ 29.6 million, following the applicable
settlement adjustments.  As agreed the second tranche of cash consideration of
US$10 million has been paid into an escrow account for release to the Company in
18 months contingent upon the conditions as earlier announced.  A subsequent
payment of up to US$53 million will be tied to future production from the
divested interests in excess of 27.8 million barrels.



With the receipt of the first tranche cash consideration, SOCO currently has a
net cash balance of approximately US$90 million.



                                                                  18 August 2005


ENQUIRIES:


SOCO International plc
Roger Cagle                  Deputy Chief Executive and       Tel: [phone]
                             Chief Financial Officer


Pelham Public Relations
James Henderson                                               Tel: [phone]
Charles Vivian                                                Tel: [phone]






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