Drilling Report

Roc Oil Company Limited 29 August 2006 29 August 2006 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE DRILLING UPDATE 1. Offshore Mauritania Further to its Stock Exchange Release on 22 August 2006 and as at 0600 hours (local time) on 27 August 2006, the Dana-operated Flamant-1 exploration well in Block 8 remains at its previously reported depth of 1,872 metres due to delays caused by mechanical difficulties and adverse weather. Flamant-1 is located in a water depth of 1,414 metres approximately 340 km north-west of the Chinguetti Oil Field. The planned Total Depth is approximately 3,370 metres. On completion of Flamant-1 the Atwood Hunter will drill a second Dana-operated exploration well, Aigrette-1 in Block 7, before returning the rig to Woodside. Participating interests include: Company Block 8 Block 7 Roc Oil group companies * Option to increase to 5% 2.000%* 4.950% Dana Petroleum (E&P) Limited 41.500% 63.850% Wintershall AG 25.000% -- Hardman group companies 18.000% 16.200% Woodside group companies -- 15.000% Gaz de France UK B.V 13.500% -- 2. North Sea Further to ROC's Stock Exchange Release on 31 July 2006, the Ocean Princess semi-submersible rig commenced drilling the single Enoch development well 16/ 13a-G on 24 August 2006 and as at 0600 hours on 28 August 2006 development drilling continues. Company Block 16/13a Roc Oil (GB) Limited 12.000% Talisman Exporo Limited ()perator) 24.000% Talisman LNS Limited 1.200% Dyas UK Limited 14.000% Bow Valley Petroleum (UK) Ltd 12.000% Dana Petroleum (E & P) Ltd 8.800% Endeavour Energy UK Limited 8.000% Norvegian Partners 20.000% ------------------------- --------------------------- 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 E-mail: 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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