: Basin FEL 1/09 and FEL 4/13

Serica holds 100% equity in its two Rockall Licences and is seeking partners to participate in drilling an exploration well in the Irish Rockall Basin. Two attractive opportunities exist; the stacked Midleton and Derryveagh prospects in FEL 4/13 and the Muckish prospect in FEL 1/09.

Opportunity Highlights • Large tilted fault block overlain by amplitude-supported turbidite fan • Additional large tilted fault block prospects • Proven hydrocarbon system • Excellent 3D seismic coverage • Highly favourable tax regime

The Midleton and Derryveagh prospects are located in FEL 4/13 and can be drilled with a single exploration well. Derryveagh is an Albian turbidite fan and Midleton is a titled fault block analogous to the Dooish discovery.

FEL 1/09 contains the drill ready Muckish prospect, also a tilted fault block analogous to the Dooish gas condensate discovery.

Dooish Discovery

Mackoght West Midleton

Muckish Midleton East

Muckish N Prospect 3D Depth Perspective on Base The Derryveagh Prospect is an amplitude-supported stratigraphic Aptian/Albian turbidite fan which is draped over the top of the Midleton tilted fault block prospect. This stratigraphic play is well-established in the UK West of and the Irish Porcupine Basin. The Midleton Prospect is a significant tilted fault block, mapped on excellent-quality 3D seismic data, with up to 79 km2 areal closure and over 500m of vertical closure. A single vertical well would test both the Derryveagh fan and the underlying Midleton Prospect.

The Muckish Prospect is a significant tilted fault block, mapped on excellent-quality 3D seismic data, with up to 31 km2 areal closure and over 600m of vertical closure. It is located 30 kms north of the Dooish discovery (12/2-1,1z), which encountered sandstone reservoirs of Permian to Middle age containing rich gas condensate.

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The information contained herein is illustrative only. It is not warranted and should not be relied on for investment decisions Interested parties should confirm their evaluation through examination of the original data in the Serica data room.