Roc Oil (Cabinda) Company, a wholly owned subsidiary of ROC and operator of the Cabinda South Block, onshore Angola, provides the following drilling activity update:

1. Soja-1

The Simmons 80 rig commenced drilling the Soja-1 exploration well on 25 August, 2007. The well’s primary target, a post-salt structure, is expected to be penetrated by the end of September 2007. Subject to drilling progress and the onset of the rainy season, the well is likely to be suspended for re-entry in 1H 2008 in order to drill into a deeper pre-salt target.

When the Simmons 80 rig demobilises from the Soja-1 location, it will move to a higher and drier ground where it will drill the Milho-1 and Trigo-1 exploration wells, both of which have primary targets within the pre-salt and each of which is expected to take approximately two months to drill.

2. Cevada-1

The ROC Explorer rig is being relocated from the Massambala discovery to drill the Cevada-1 exploration well. It is expected that the well will start drilling during the second half of September and take about one month to reach its post-salt target.

3. Reporting Procedures

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

Participating Interests in the Cabinda South Block are:

ROC Group Companies (Operator) 60%
Force Petroleum Limited 20%
Sonangol P&P S.A. 20%