VietnamDrillingUpdate-Replace

Soco International PLC
25 September 2007

The following press release replaces Soco International's RNS statement number
4105E released at 07.03 today.  The principal change in this reissued release
regards the wording on the location of the 'AA' prospect.




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


                            Vietnam Drilling Update



TGL-1X Well

The Company's majority owned subsidiary, SOCO Vietnam Ltd., announces that the
Te Giac Lam 1X exploration well, the first well on Prospect 'O' in Block 16-1,
will be plugged and abandoned after reaching a total depth of 3,697 metres.  The
well was drilled to test a Miocene four-way closure on one of the Basement
ridges that appear on seismic to be analogous to the geological setting of the
Te Giac Trang ('TGT') field discovery to the East, and deepened to intersect the
Oligocene sands.

Even though the well was drilled overpressured, mud log data indicated 70 metres
of sand with good oil shows in the Oligocene section.  A test was conducted over
this interval however, the sands at this location were found to be tight and
further testing was discontinued. The data gathered during the testing process
will be further analysed to determine future drilling activities on this new
play type.



Upcoming Drilling Activity - TGD-1X Well Testing and VN-1X Exploration Well

The rig will immediately move to the 'AA' prospect to drill the Voi Nau 1X
exploration well, which is estimated to take approximately 20 days prior to
testing, if required.  The 'AA' prospect is located on trend with the oilfield
discovered in 2002 by the Voi Trang 1X well.

Following this well, the rig will be fitted with high pressure equipment,
including a 15,000 psi blow out preventer, which will enable it to test the Te
Giac Den 1X ('TGD-1X') well on Prospect 'E'.

As announced on 30 July 2007, the TGD-1X well encountered hydrocarbons in two
Oligocene clastic sequences, which were separated by a volcanic layer. Well logs
over the upper sequence, the object of the impending test, indicated
approximately 30 metres of net pay. After drilling through the volcanics, the
well also encountered a deeper high pressure clastic sequence with oil and gas
shows.  A further 300 metres of sediment is interpreted above the Basement. This
interval will not be re-entered on this test, but will be redrilled later in the
drilling programme.


Ed Story, President and Chief Executive of SOCO, commented:

'Reservoir quality in the Oligocene section has proven to be challenging in the
Cuu Long Basin, offering both good successes in the TGT field and the
overpressured TGD-1X well.  Given our experience in the TGD-1X well, we expect
more consistent success in the overpressured, massive structures represented by
the 'E' and 'E' South prospects.'





                                                               25 September 2007





ENQUIRIES:

SOCO International plc
Roger Cagle                   Deputy Chief Executive and     Tel: [phone]
                              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), the Democratic Republic of Congo (Kinshasa)
and Angola 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 Limited ('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 ('HVJOC') and
holds a 28.5% working interest in Block 16-1, which is operated by the Hoang
Long Joint Operating Company ('HLJOC'). OPECO, Inc. holds a 2% interest in Block
16-1.


                      This information is provided by RNS
            The company news service from the London Stock Exchange