RNS Number:6548Q
EnCore Oil PLC
25 March 2008


                                                                               


Press Release

For immediate release: 25 March 2008


EnCore Oil plc ("EnCore" or "the Company")



        Commencement of Drilling Operations on Cobra Gas Appraisal Well


EnCore Oil plc (LSE: EO.) is pleased to announce that drilling operations on the
Cobra appraisal well on Southern North Sea block 48/2c have commenced.


The main objective of the 48/2c-5 well will be to establish whether the
reservoir is capable of flowing at commercial rates. The well is being drilled
up dip from the 48/2-1 well, drilled in 1984, which flowed at 2.7 million cubic
feet per day from a Rotliegendes Sandstone reservoir. It is interpreted that the
reservoir was damaged during the drilling of the 48/2-1 well and that the
reservoir performance could be improved by the use of modern drilling and
completion techniques.


The EnCore operated well is being drilled by the ENSCO 80 jack-up rig and will
be managed by Applied Drilling Technology International (ADTI) which has over 20
years' experience in providing 'turnkey' drilling services. EnCore has a 20 per
cent. interest in the licence and will pay for only three per cent. of the
appraisal well cost (subject to an overall well cost cap).


Graham Dore B.Sc. (Hons.) in Geology and M.Sc. in Petroleum Geology and EnCore's
Exploration Director, who has over 20 years' experience in the oil exploration
and production industry, has reviewed and approved the technical information
contained in this announcement.


For further information, please contact:

EnCore Oil plc                                 www.encoreoil.co.uk
                                               ----------------------
Alan Booth, Chief Executive Officer            +44 (0)20 7224 4546
Eugene Whyms, Chief Financial Officer

Aquila Financial Limited                       www.aquila-financial.com
                                               --------------------------
Peter Reilly                                   +44 (0) 118 979 4100
Yvonne Fraser

Hanson Westhouse Limited
Tim Feather                                    +44 (0)113 246 2610

KBC Peel Hunt
Jonathan Marren                                +44 (0)20 7418 8900




Notes to Editors:


EnCore Oil plc (LSE: EO.) is an oil and gas exploration and production (E&P)
company quoted on the Alternative Investment Market (AIM).


It is not Encore's aim to build a full cycle E&P company. The Company's
principal strategy is to create shareholder value through the successful
exploration and appraisal of prospects and discoveries. The Company will seek to
monetise or exchange the asset at the appropriate point in its life cycle and
return value directly to shareholders wherever possible.


EnCore has an experienced and proven management team, a number of whom were
responsible for the discovery of the Buzzard field in the UK North Sea, which
currently produces 10 per cent. of the UK's total oil production.


All of EnCore's commercial and material technical evaluations are undertaken
in-house by the EnCore team. This brings both continuity to the management and
development of the assets and an ownership that is vital to unearth the best and
most creative new ideas and opportunities.


EnCore currently holds a balanced portfolio of interests in licences both on and
offshore, primarily focused on the UKCS. EnCore expects to participate in the
drilling of nine wells before the end of 2008.


www.encoreoil.co.uk




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

END
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