Vietnam Drilling Update

Soco International PLC
15 February 2007


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

                    Exploration Well on Block 9-2 in Vietnam

The Company's majority owned subsidiary, SOCO Vietnam Ltd., announces the
preparation for the commencement of drilling of the first Clastics targeted well
on Block 9-2 with the imminent spudding of the Ca Ong Doi 2X ('COD-2X') well.
The drilling rig is on site after an extended weather delay whilst it was
awaiting to be towed from the Te Giac Trang 5X well on Block 16-1, which tested
at a total combined maximum flow rate of approximately 16,430 barrels of oil
equivalent per day.

The COD-2X well is designed to evaluate the Clastics reservoirs that have been
successfully tested on Block 16-1. It is anticipated that this well will take
approximately 40 days to drill. Testing, if required, would add several weeks.
The spudding of this well will mark the beginning of the most active annual
drilling programme in the Company's history.

                                                                15 February 2007

ENQUIRIES:

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

Pelham Public Relations
James Henderson                                            Tel: [phone]
Alisdair Haythornthwaite                                   Tel: [phone]


Notes to Editors

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 interests in Vietnam, Yemen, Thailand,
the Republic of Congo (Brazzaville) and the Democratic Republic of Congo
(Kinshasa) with production operations in Yemen.

SOCO holds its interests in Vietnam, all in the Cuu Long Basin offshore, through
its 80% owned subsidiary SOCO Vietnam Ltd ('SOCO Vietnam') and through its 100%
ownership of OPECO, Inc. SOCO Vietnam holds a 25% working interest in Block 9-2,
which is operated by the Hoan Vu Joint Operating Company and holds a 28.5%
working interest in Block 16-1, which is operated by the Hoang Long Joint
Operating Company. OPECO, Inc. holds a 2% interest in Block 16-1.



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