Resolution of Dispute

Roc Oil Company Limited 31 March 2006 31 March 2006 ROC OIL COMPANY LIMITED ('ROC') STOCK EXCHANGE RELEASE RESOLUTION OF MAURITANIAN DISPUTE ROC advises that Woodside Petroleum Ltd today announced that it has reached an agreement in principle to settle the dispute over supplementary agreements with the Mauritanian Government to four offshore Production Sharing Contracts ('PSC') for Area A, Area B, Area C Block 2 and Area C Block 6, operated by the company's wholly-owned subsidiary Woodside Mauritania Pty Ltd ('Woodside'), without the need for formal arbitration. In principle an agreement has been reached between Woodside and the Mauritanian Government to amend the PSCs which would supersede the supplementary agreements - the detail of which is still to be negotiated but does not affect the exploration periods in the current PSCs. Under the terms of the PSCs, unanimous consent is required to amend the PSCs and ROC is currently evaluating its position. 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
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