Rockpool Acqui Regulatory News (ROC)

19 Apr 2006 07:02

Roc Oil Company Limited19 April 2006 19 April 2006 ROC OIL COMPANY LIMITED ("ROC") STOCK EXCHANGE RELEASE EXPLORATION DRILLING UPDATE 1. Jacala-1, WA-351-P, Carnarvon Basin, Offshore Western Australia (ROC: 20%) ROC advises that as at 0600 hours Western Standard Time on 19 April 2006, theAtwood Eagle deep water semi-submersible drilling rig had drilled the BHPBilliton-operated Jacala-1 exploration wildcat well, to a Total Depth of 2,217metres below rotary table. Current operation is pulling out of the hole prior toformation evaluation. Until the formation evaluation programme is completed and the log data analysed,it is not possible to be definitive about the results of the well. However, atthis stage obvious hydrocarbon shows have not been observed in the well. Thelogging programme is expected to be completed by the end of this week afterwhich a further announcement will be made. Jacala-1 is located in about 1,060 metres of water approximately 200 km west ofBarrow Island and 100 km northwest of the Enfield Oil and Gas Field. The WA-351-P Joint Venture comprises: BHP Billiton Petroleum (North West Shelf) Pty Ltd 55% & OperatorTap (Shelfal) Pty Ltd 25%Roc Oil (WA) Pty Ltd 20% 2. Willows-1, PEDL030, Onshore UK (ROC: 100% & Operator) The ROC Explorer rig is drilling the Willows-1 exploration wildcat well and asof 2030 hrs UK time on 18 April 2006 the well had been drilled to a depth of 688metres and the operation was drilling ahead towards the next casing pointexpected at approximately 750 metres. Total Depth is expected to be about 2,500metres. Willows-1 is a potentially large gas prospect located about 55 km eastof York and 15 km south of Scarborough. 3. Wei-6-12-S-1, Block 22/12, Offshore China (ROC: 40% and Operator) The COSL 931 jack-up drilling rig is currently scheduled to commence drillingthe Wei-6-12-S-1 exploration well during the course of next week. The well islocated in approximately 30 metres of water about 3 km southwest of the 2002small oil discovery - Wei-6-12-1, and is expected to take about 21 days todrill. The Block 22/12 Joint Venture comprises: Roc Oil (China) Company 40% & OperatorHorizon Oil Limited 30%Petsec Petroleum Inc 25%Oil Australia Pty Ltd** 5%** subsidiary of First Australian Resources Limited 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