Microsoft 6th Annual Global Energy Forum

Roc Oil exploration well begins drilling in Angola

The well is expected to be finished during September 2008.

Published Aug 13, 2008

Roc Oil (Cabinda) advises that the Arroz-1 exploration well commenced drilling on 10 August 2008. As at 2300 hours (local time) on 11 August 2008, the well was drilling ahead at 205mBRT.

Arroz-1, which is located in the east of the Block, is the final well in the current seven well exploration drilling programme and like the previous three wells will test a sub-salt prospect. The well is expected to be finished during September 2008.

Consistent with ROC’s established practice regarding its Angolan drilling activity, the Company will only issue public statements at the beginning and end of each drilling operation after the relevant information has been collected and carefully analysed.