Barryroe Well Testing Update (9517Z)

TIDMSLE

RNS Number : 9517Z

San Leon Energy PLC

23 March 2012

San Leon Energy Plc

("San Leon" or the "Company")

Barryroe Well Testing Update

San Leon, the fast growing oil and gas company with an extensive portfolio of assets across Europe and North Africa, notes this morning's announcement from Providence Resources plc ("Providence") updating on the Barryroe well. San Leon announced, on 23 December 2011, that the Company has assigned its 30% working interest in Standard Exploration Licence 1/11 to Providence in exchange for a 4.5% NPI on the full field. San Leon Energy will not pay any further appraisal or development costs on the Licence and is not paying any costs towards the 48/24-10 well.

The full announcement by Providence stated the following:

BARRYROE WELL TESTING UPDATE

   --      UPPER GAS BEARING RESERVOIR PROVES TO BE HIGHLY PRODUCTIVE 
   --      WELL NOW SUSPENDED AND RIG DEMOBILISATION UNDERWAY

Providence Resources P.l.c., ('Providence') the London (AIM) and Dublin (ESM) quoted oil and gas exploration and production company is pleased to provide a final testing update from its Barryroe well, offshore southern Ireland. The 48/24-10z Barryroe appraisal well is located in c. 100 metre water depth, c. 50 kilometres offshore Ireland in Standard Exploration Licence (SEL) 1/11 in the North Celtic Sea Basin. Providence (80%) operates SEL 1/11 on behalf of its partner Lansdowne Oil & Gas plc (20%).

Following the successful testing of the lower basal 24' net oil bearing interval, which flowed c. 3,514 BOPD & 2.93 MMSCFGD (c. 4,000 BOEPD, see RNS announcement of March 15(th) ), an additional 17' thick net gas bearing section was perforated to test the potential of the upper part of the basal Wealden sandstone section. The surface test spread equipment was optimized for the lower oil zone test and was therefore equipment constrained on this gas zone test, which achieved highly productive flow rates of c. 7 MMSCFGD & 1,350 BOPD (c. 2,516 BOEPD) through a restricted 36/64" choke, with a flowing well head pressure of c. 1,700 psig. The productivity of the gas bearing interval far exceeded expectations and thereby constrained the ability to fully open the well up to its maximum potential. Preliminary modeling of the pressure data indicates that a co-mingled flow rate of c. 17 MMSCFGD & 3,350 BOPD (c. 6,183 BOEPD) at a flowing well head pressure of c. 500 psig is achievable. Well suspension operations are now complete and the rig will be demobilized to the UK imminently.

Commenting on this further successful test, Tony O'Reilly, CEO of Providence said:

"We are very pleased to confirm that the gas zone was far more productive than we had anticipated. The well lies just 3 km from installed pipeline infrastructure which may provide a future route to monetize any surplus Barryroe gas production. It is particularly pleasing to note that both the oil and gas zones have far exceeded our pre-drill expectations, both in terms of reservoir development and more importantly, oil and gas flow rates. I once again wish to express our thanks to all involved in this testing programme, which has demonstrated such a substantial cumulative flow rate potential from this vertical Barryroe appraisal well."

For further information contact:

 
 San Leon Energy Plc                  Tel: + 353 1291 6292 
 Oisin Fanning, Executive Chairman 
 Macquarie Capital (Europe) Limited   Tel: +44 (0) 20 3037 
                                       2000 
 Paul Connolly 
  John Dwyer 
 
  Westhouse Securities                 Tel: +44 (0) 20 7601 
  Richard Johnson                      6100 
  Antonio Bossi 
 College Hill Associates              Tel: +44 (0) 20 7457 
                                       2020 
 Nick Elwes

www.sanleonenergy.com

This information is provided by RNS

The company news service from the London Stock Exchange

END

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