Highlands Natural Resources Regulatory News (HNR)

4 Oct 2005 07:00

Roc Oil Company Limited04 October 2005 4 October 2005 ROC OIL COMPANY LIMITED ("ROC") STOCK EXCHANGE RELEASE MAURITANIA OFFSHORE DRILLING UPDATE ROC advises that the following release was made earlier today by WoodsidePetroleum Ltd: "Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside PetroleumLtd., reports the following activity offshore Mauritania since the last reportissued on 27 September 2005. PSC Area B: Tevet-2 Combined Appraisal and Exploration Well The 'Stena Tay' rig drilled the Tevet-2 well to a depth of 3,043 metres. Casingwas set and drilling continued towards a planned total depth of approximately3,965 metres. At midnight on the 3 October 2005, the well was at a depth of3,692 metres. Chinguetti Development Wells The 'West Navigator' drillship successfully finished drilling, well completionand flow-testing the Chinguetti development wells. The drillship was releasedfrom Mauritania at the end of the contract period, on the 29 September 2005. Chinguetti FPSO 'Berge Helene' The refurbishment of the Chinguetti FPSO, the 'Berge Helene', was completed on28 September 2005 at the Keppel Shipyard in Singapore. The vessel is currentlyanchored in deep water off Singapore where commissioning activities will beundertaken before commencing the voyage to Mauritania. General All reported drilling depths are referenced to the rig rotary table and alltimes are Universal Time (UTC) (Mauritanian time). The locations of planned exploration wells and the Chinguetti Oil Field areshown on the attached map*. Participating Interests in the Chinguetti Joint Venture and relevant PSC areasare: +---------------------------+-----------+----------+----------+----------+ | Company |Chinguetti | PSC-A | PSC-B | PSC-C, | | | Joint | | | Block 6 | | | Venture | | | | +---------------------------+-----------+----------+----------+----------+ |Woodside group companies | 47.38448% | 53.846% | 53.846% | 37.578% | |(Operator) | | | | | +---------------------------+-----------+----------+----------+----------+ |Hardman group companies | 19.00800% | 24.3% | 21.6% | 22.422% | +---------------------------+-----------+----------+----------+----------+ |Groupe Project Chinguetti | 12.00000% | -- | -- | -- | +---------------------------+-----------+----------+----------+----------+ |BG group companies | 10.23440% | 13.084% | 11.63% | -- | +---------------------------+-----------+----------+----------+----------+ |Premier group companies | 8.12328% | -- | 9.231% | -- | +---------------------------+-----------+----------+----------+----------+ |Roc Oil group companies | 3.24984% | 4.155% | 3.693% | 5.0% | +---------------------------+-----------+----------+----------+----------+ |Fusion group companies | -- | 4. 615% | -- | -- | +---------------------------+-----------+----------+----------+----------+ |Petronas Carigali Overseas | -- | -- | -- | 35.0% | |Sdn Bhd | | | | | +---------------------------+-----------+----------+----------+----------+ *Map attached to the copy of this release on ROC's website.(http://www.rocoil.com.au/Pages/ASX_Releases/2005_Releases/October-2005.html) 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