UK ONSHORE DRILLING UPDATE

Roc Oil Company Limited 15 November 2004 15 November 2004 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE UK ONSHORE DRILLING UPDATE ERRINGTON-1: EXPLORATION WELL, PEDL 028, ONSHORE UK (ROC: 100% & Operator) As at 14 November 2004 conductor pipe had been set and cemented at 54 m at the Errington-1 exploration wildcat well ahead of rigging up the ROC-owned Explorer Rig to commence conventional petroleum drilling activities following the release of the air drilling rig which had been used to drill the top hole section. Errington-1 is located in PEDL 028 approximately 35 km west of Newcastle in northern England. The Errington-1 wildcat exploration well, which is targeting a potentially large gas prospect, is expected to reach the first objective horizon during the latter part of December 2004. John Doran For further information please contact Chief Executive Officer Dr John Doran on Tel: +61-2-8356-2000 Fax: +61-2-9380-2635 E-mail: 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 Ann-Marie Wilkinson/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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