Drilling Update: Mauritania

5 Sep 2006 07:04

Roc Oil Company Limited05 September 2006 5 September 2006 ROC OIL COMPANY LIMITED ("ROC") STOCK EXCHANGE RELEASE EXPLORATION DRILLING UPDATE OFFSHORE MAURITANIA ROC advises that further to its Stock Exchange Release on 29 August 2006 on theDana-operated Flamant-1 exploration well in Block 8 mechanical repairs have beencompleted. As at 0600 hours (local time) on 4 September 2006, no significant drillingprogress from the 20 inch casing shoe which was set at 1,870 metres had beenmade. Drilling operations are expected to recommence shortly. Flamant-1 is located in a water depth of 1,414 metres approximately 340 kmnorth-west of the Chinguetti Oil Field. The planned Total Depth is approximately3,370 metres. On completion of Flamant-1 the Atwood Hunter will drill a second Dana-operatedexploration well, Aigrette-1 in Block 7, before returning the rig to Woodside. Participating interests include: +---------------------------+----------+---------+ | Company | Block 8 | Block 7 | +---------------------------+----------+---------+ |Roc Oil group companies | 2.000%* | 4.950%| |* Option to increase to 5% | | | +---------------------------+----------+---------+ |Dana Petroleum (E&P) | 41.500%| 63.850%| |Limited | | | +---------------------------+----------+---------+ |Wintershall AG | 25.000%| --| +---------------------------+----------+---------+ |Hardman group companies | 18.000%| 16.200%| +---------------------------+----------+---------+ |Woodside group companies | --| 15.000%| +---------------------------+----------+---------+ |Gaz de France UK B.V | 13.500%| --| +---------------------------+----------+---------+ For further information pleaseMichelle Manook contact:General Manager - Corporate Affairs Dr John Doran on Tel: +61-2-8356-2000 Fax: +61-2-9380-2635 Email: jdoran@rocoil.com.au Or visit ROC's website: www.rocoil.com.au Dr Kevin Hird General Manager Business Development Tel: +44 (0)207 586 7935 Fax: +44 (0)207 722 3919 Email: khird@rocoil.com.au Nick Lambert Bell Pottinger Corporate & Financial Tel: +44 (0)207 861 3232 This information is provided by RNS The company news service from the London Stock Exchange