Mauritania Drilling Update

Roc Oil Company Limited 29 November 2005 29 November 2005 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE MAURITANIA OFFSHORE DRILLING UPDATE ROC advises that, as at midnight on 28 November 2005, Faucon-1, a wildcat exploration well in Block 1, offshore Mauritania, was drilling ahead and had reached a depth of 1,915 metres after setting 13-3/8 inch casing at a depth of 1,897 metres. Faucon-1 has a planned total depth of 4,200 metres and is located in 1,164 metres of water in Block 1, 140 km south of the Woodside-operated Chinguetti Field. The target reservoir at Faucon is a Cretaceous canyon complex sealed against a salt dome. The Joint Venture Interests in Block 1 are: +----------------------------------------+------------+ | | Equity | +----------------------------------------+------------+ |Dana Petroleum (E&P) Limited (Operator) |36.0% | +----------------------------------------+------------+ |Gaz de France UK B.V. |24.0%* | +----------------------------------------+------------+ |Tullow Oil |20.0% | +----------------------------------------+------------+ |Hardman Petroleum (Mauritania) Pty |18.0% | |Limited | | +----------------------------------------+------------+ |Roc Oil (Mauritania) Company | 2.0% | +----------------------------------------+------------+ * Subject to farmin from Dana All reported depths (except water depth) are referenced to the rig rotary table (RT). Times and dates refer to GMT (Mauritania time). Hydrocarbon shows will be only reported after all required logs have been run and evaluated. Michelle Manook For further information please 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
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