Well Update

Regal Petroleum PLC
21 December 2007



 
Immediate Release                                              21 December 2007
                                                                          

                              REGAL PETROLEUM PLC
                           ('Regal' or 'the Company')

                                Gas Discovery in
                         Dornesti Sud-1 Well in Romania

The Company is pleased to announce that Aurelian Oil and Gas plc, through its
wholly owned Romanian subsidiary, Aurelian Oil & Gas Romania S.R.L.
('Aurelian'), as operator of the Suceava EV-1 Concession (the 'Concession') in
Romania has completed flow testing of the Dornesti Sud-1 exploration well.

A flow test of a 12.5 metre interval, from 531.8 metres to 544.3 metres,
produced gas at an average rate of 24,840  Sm3/d (876 Mscf/d) with a flowing
wellhead pressure of 32 bar (464 psi) on a 12mm choke over a 8 hour main flow
period.

The Dornesti Sud-1 well was drilled through the Sarmatian formation to a total
depth of 910 metres and encountered gas  in the interval 528 metres to 545
metres. This section, which consists of sandstones interbedded with siltstones
and  claystones, was interpreted to be gas bearing on evaluation with electrical
logs.

The well has been completed as a production well and efforts will be directed to
tying it in during 2008 to the Bilca  Gas Plant, operated by Aurelian on its
adjacent Brodina Block EIII-1 concession.

Regal holds a 50% working interest in the Concession with Aurelian holding the
remaining 50% interest, and the Concession covers an area of 4,103 square
kilometres onshore in the north-east of Romania.

For further information, please contact:

Regal                                                     Tel: [phone]

David J Greer, Chairman & Chief Executive Officer

Evolution Securities                                      Tel: [phone]
Robert Collins

Mirabaud Securities                                       Tel: [phone]
Pav Sanghera



Definitions:

bar one atmosphere pressure
mm millimetres
Mscf/d million standard cubic feet per day
psi pounds per square inch
Sm3/d standard cubic metres per day

In accordance with the guidelines of the AIM market of the London Stock
Exchange, Antonio Mozetic, PhD Geological  Sciences, SPE, Director of Regal
Petroleum plc, is the qualified person that has reviewed the technical
information  contained in this press release.



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