Drilling Update-Mauritania

Roc Oil Company Limited 09 October 2006 9 October 2006 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE EXPLORATION DRILLING UPDATE OFFSHORE MAURITANIA ROC advises that the Atwood Hunter commenced drilling the Dana-operated Aigrette-1 exploration well in Block 7 on 7 October 2006. As at 0600 hours (local time) on 8 October the well had been drilled to a depth of 1,838 metres and the current operation was drilling ahead. Aigrette-1 is located in a water depth of 1,380 metres approximately 43 km north, northwest of the 2003 Pelican-1 gas discovery and 193 km north, northwest of the Chinguetti Oil Field. The planned Total Depth is 4,925 metres which is expected to be reached in early November. On completion of Aigrette-1 the Atwood Hunter will return to drill the remaining wells in the Woodside-operated programme: Kibaro-1 exploration well in PSC Area A and Chinguetti-18 development well. Participating interests include: +---------------------------------+-----------+----------+--------------+ | Company | Dana |Woodside | Woodside | | | Operated | Operated | Operated | | | Block 7 | PSC-A | Chinguetti | | | | |Joint Venture | +---------------------------------+-----------+----------+--------------+ |Roc Oil group companies | 4.950% | 4.155% | 3.24984% | +---------------------------------+-----------+----------+--------------+ |Dana Petroleum (E&P) Limited | 36.000% | -- | -- | +---------------------------------+-----------+----------+--------------+ |Gaz de France UK Exploration B.V.| 27.850% | -- | -- | +---------------------------------+-----------+----------+--------------+ |Hardman group companies | 16.200% | 24.300% | 19.00800% | +---------------------------------+-----------+----------+--------------+ |Woodside group companies | 15.000% | 53.846% | 47.38448% | +---------------------------------+-----------+----------+--------------+ |Societe Mauritanienne des | -- | -- | 12.00000% | |Hydrocarbures (formerly GPC) | | | | +---------------------------------+-----------+----------+--------------+ |BG group companies | -- | 13.084% | 10.23440% | +---------------------------------+-----------+----------+--------------+ |Premier group companies | -- | -- | 8.12328% | +---------------------------------+-----------+----------+--------------+ |Fusion group companies | -- | 4.615% | -- | +---------------------------------+-----------+----------+--------------+ For further information please contact: Michelle Manook Dr John Doran on General Manager - Corporate Affairs 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
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