Barryroe update

05 September 2012

San Leon, the specialist 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") of the technical update by Providence on the Barryroe oil discovery in the North Celtic Sea Basin, offshore Ireland. San Leon announced, on 23 December 2011, that the Company has assigned its 30% working interest in Standard Exploration Licence 1/11 (“Licence”) 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.  



  P50 (MMBO) P10 (MMBO)
Lower Wealden 416 663
Purbeckian 362 502
Total 778 1,615

Providence Resources P.l.c., (“Providence”) the Irish oil and gas exploration and production company, whose shares are quoted in London (AIM) and Dublin (ESM), is pleased to provide a further update on the resource potential of Barryroe in the North Celtic Sea Basin, offshore Ireland. Providence (80%) operates Barryroe on behalf of its partner Lansdowne Oil and Gas plc (20%). The area is located in Standard Exploration Licence (SEL) 1/11 and Licensing Option (LO) 12/4, situated in c. 100 metre water depth and is c. 50 kilometres off the south coast of Ireland.

ADDITIONAL RESOURCE ESTIMATES FOR THE LOWER WEALDEN AND PURBECKIAN In its RNS of July 25th, 2012, the Company issued updated oil in place figures for the Middle Wealden and Basal Wealden reservoir zones of 1,043 MMBO (P50) and 1,612 MMBO (P10). At that time, the Company also noted that there was further upside potential in the hydrocarbon bearing Lower Wealden and Purbeckian sands, as well as identifying the exploration potential of a deeper Upper Jurassic objective.

Providence has now completed an evaluation of the in place volumetric resource for these two additional logged hydrocarbon bearing intervals at Barryroe. This assessment, which was based on previous well data, together with 2D and 3D seismic data, estimates an additional total P50 oil in place resource of 778 MMBO and P10 resource of 1,165 MMBO. However, as there is limited reservoir and well test data available over these two intervals, future well data over these two specific zones would be required in order to firm up the final resource estimates. As such, these zones have not been included in the Barryroe dynamic reservoir simulation modelling, which is currently ongoing, with the results expected within the next six weeks. The resource potential of the underlying Upper Jurassic exploration objective has not been quantified as no wells have penetrated this deeper target at this location. The Barryroe partners plan to reprocess the 3D seismic data during Q4, and it is hoped that this will allow for better imaging of these deeper zones, prior to quantifying any associated prospective resource potential.

Commenting on the additional resource update, Mr. John O’Sullivan, Technical Director said:

“Whilst our focus remains firmly fixed on progressing the Middle and Basal Wealden sands into development, it is very encouraging to have identified this additional resource potential at Barryroe. It is clear that more data are required over these intervals, however, the numbers are potentially material and provide room for significant resource growth in the Barryroe project in the longer term. In the meantime, we look forward to providing shareholders with an update on recovery factors from the dynamic modelling project.”


For further information contact:

San Leon Energy Plc 
Oisin Fanning, Executive Chairman
John Buggenhagen, Exploration Director
Tel: +353 1291 6292

Macquarie Capital (Europe) Limited 
Paul Connolly
John Dwyer
Tel: +44 (0) 20 3037 2000

Fox Davies Capital 
Daniel Fox-Davies
Richard Hail
Tel: +44 (0) 20 3463 5000

FirstEnergy Capital LLP 
Hugh R. Sanderson
David Van Erp
Tel: +44 (0) 20 7448 0200

Westhouse Securities (Nominated Advisor) 
Richard Johnson
Antonio Bossi
Tel: +44 (0) 20 7601 6100

College Hill Associates 
Nick Elwes
Alexandra Roper
Tel: +44 (0) 20 7457 2020


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