Exploration Update Mauritania

Roc Oil Company Limited 24 October 2006 24 October 2006 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE EXPLORATION DRILLING UPDATE OFFSHORE MAURITANIA Further to its Stock Exchange Release on 17 October 2006 regarding the Dana- operated Aigrette-1 exploration well in Block 7, ROC advises that the well has been drilled to a depth of 2,809 metres where the 13 3/8 inch casing was run and set. As at 0600 hours (local time) on 23 October preparations were underway to drill ahead in 12 1/4 inch hole. Aigrette-1 is located in a water depth of 1,358 metres approximately 43km north- northwest of the 2003 Pelican-1 gas discovery and 193km north-northwest of the Chinguetti Oil Field. The planned Total Depth is 4,925 metres. 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% | -- | -- | +----------------------------------+-----------+-----------+--------------+ |Hardman group companies | 16.200% | 24.300% | 19.00800% | +----------------------------------+-----------+-----------+--------------+ |Woodside group companies | 15.000% | 53.846% | 47.38448% | +----------------------------------+-----------+-----------+--------------+ |Gaz de France | 27.850% | -- | -- | +----------------------------------+-----------+-----------+--------------+ |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% | -- | +----------------------------------+-----------+-----------+--------------+ Michelle Manook General Manager - Corporate Affairs For further information please contact: 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
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