MAURITANIA: Roc Oil provides drilling

Roc Oil (Mauritania) Company, a wholly owned subsidiary of ROC, advises that as 0600 hours (local time) on 15 April 2008, the Banda NW appraisal well had reached a Total Depth of 2,703 mBRT and a wireline logging programme is underway.

Following completion of the wireline logging at Banda NW, the Atwood “Hunter” will move to the Chinguetti Oil and Gas Field where it will carry out a programme of planned well interventions and drill two new production wells.

Participating Interests in the PSC Area B Joint Venture are:

ROC Group Companies..................................................... 3.693%
PC Mauritania I Pty Ltd (Operator)................................. 53.846%
Tullow Oil plc..................................................................... 21.600%
Mauritania Holdings B.V................................................. 11.630%
Premier Oil Mauritania B Limited.................................... 9.231%

1. Blane Oil Field, North Sea

Roc Oil (GB) Limited, a wholly owned subsidiary of ROC, advises that as at 0600 hours (local time) on 15 April 2008, the "Ocean Princess" rig was in the final stages of completing the 30/3a-3Z sidetrack water injection well.

The forward programme is to conduct injectivity tests which are expected to be completed by the end of April 2008.

Unitised Interests in the Blane Oil Field are:

Roc Oil (GB) Limited..................................................... 12.5%
Talisman Energy (UK) Limited (Operator)......................... 25.0%
Talisman Energy Norge AS......................................... 18.0%
MOC Exploration (UK) Limited
(a subsidiary of Nippon Oil Corporation)................. 14.0%
ENI UK Limited............................................................... 13.9%
ENI ULX Limited............................................................... 4.1%
Bow Valley Petroleum (UK) Limited........................... 12.5%

Source: Scandinavian Oil and Gas