Rockpool Acqui Regulatory News (ROC)

23 Apr 2008 07:01

Roc Oil Company Limited23 April 2008 23 April 2008 ROC OIL COMPANY LIMITED ("ROC") STOCK EXCHANGE RELEASE ACTIVITY UPDATE: DRILLING 1. Offshore Mauritania Roc Oil (Mauritania) Company, a wholly owned subsidiary of ROC, advises that asat 0000 hours (local time) on 22 April 2008, the Banda NW appraisal well hadbeen plugged back to 1,078 mBRT and a sidetrack well, Banda NW ST-1, commencedand drilled to 2,284 mBRT. Since the last Stock Exchange Release on 16 April 2008, wireline pressure datain Banda NW-1 had indicated penetration of a gas column, but as uncertaintyexisted concerning the location of fluid contacts, a sidetrack borehole wasinitiated. The forward programme is to drill the sidetrack to further evaluate thehydrocarbon column in a more favourable structural position. Participating Interests in the PSC Area B Joint Venture are: ROC Group Companies.......................................................3.693%PC Mauritania I Pty Ltd (Operator).......................................53.846%Tullow Oil plc...........................................................21.600%Mauritania Holdings B.V..................................................11.630%Premier Oil Mauritania B Limited..........................................9.231% 2. Blane Oil Field, North Sea Roc Oil (GB) Limited, a wholly owned subsidiary of ROC, advises that as at 0600hours (local time) on 22 April 2008, the "Ocean Princess" rig had completedwater injectivity tests on the 30/3a-3Z well. The forward programme is to finalise connection of the well to the pre-laidwater injection pipeline from the Ula Platform. Unitised Interests in the Blane Oil Field are: Roc Oil (GB) Limited.......................................................12.5%Talisman Energy (UK) Limited (Operator)....................................25.0%Talisman Energy Norge AS...................................................18.0%MOC Exploration (UK) Limited (a subsidiary of Nippon Oil Corporation)......14.0%ENI UK Limited.............................................................13.9%ENI ULX Limited.............................................................4.1%Bow Valley Petroleum (UK) Limited..........................................12.5% In accordance with ASX and AIM Rules, the information in this Release has beenreviewed and approved by Dr John Doran, Chief Executive Officer, Roc Oil CompanyLimited, BSc (Hons) Geology, MSc and PhD. Dr Doran, who is a member of theSociety of Petroleum Engineers, has more than 30 years of relevant experiencewithin the industry and consents to the information in the form and context inwhich it appears. Damian FisherGeneral ManagerExternal Affairs & Investor Relations 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)20 7495 5707/+61 (0)2 8356 2000 Mob: +44 (0)7751 3671 49/+61 (0)417 261 727 Email: khird@rocoil.com.au Michael Shaw Oriel Securities Limited (Nominated Adviser) Tel: +44 (0)20 7710 7600 Bobby Morse Buchanan Communications Tel: + 44 (0)20 7466 5000 Fax: + 44 (0)20 7466 5001 E-Mail: bobbym@buchanan.uk.com Mob: +44 (0)7802 875 227 This information is provided by RNS The company news service from the London Stock Exchange