Update: Western Australia

Roc Oil Company Limited
01 April 2008






1 April 2008

                         ROC OIL COMPANY LIMITED ('ROC')
                             STOCK EXCHANGE RELEASE

                    DRILLING ACTIVITY UPDATE: DUNSBOROUGH-2,
                    OFFSHORE PERTH BASIN, WESTERN AUSTRALIA

Roc Oil (WA) Pty Limited, a wholly owned subsidiary of ROC, advises that, since
its last Stock Exchange Release on 28 March 2008, the Dunsborough-2 appraisal
well in WA-286-P in the offshore Perth Basin, Western Australia, has reached a
Total Depth of 1,680 mBRT and a wireline logging programme is underway. The
preliminary results of the initial logging indicate that the previously reported
oil shows seen in core may be residual (non-producible) oil saturations.
However, pressure data and fluid samples need to be fully analysed in order to
allow a definitive interpretation to be made. This should happen within the next
24 hours.

Participating Interests in the WA-286-P Joint Venture are:

    Roc Oil (WA) Pty Limited (Operator)..................37.5%
    ARC Energy (Offshore PB) Limited.....................30.0%
    AWE Oil (Western Australia) Pty Ltd..................27.5%
    CIECO Energy Australia Pty Ltd........................5.0%


In accordance with ASX and AIM Rules, the information in this Release has been
reviewed and approved by Dr John Doran, Chief Executive Officer, Roc Oil Company
Limited, BSc (Hons) Geology, MSc and PhD. Dr Doran, who is a member of the
Society of Petroleum Engineers, has more than 30 years of relevant experience
within the industry and consents to the information in the form and context in
which it appears.


Damian Fisher
General Manager
External Affairs & Investor Relations

                                         For further information please contact:
                                                                Dr John Doran on
                                                            Tel: [phone]
                                                            Fax: [phone]
                                                     Email: [e-mail]
                                       Or visit ROC's website: www.rocoil.com.au
                                                                                
                                                                   Dr Kevin Hird
                                          General Manager - Business Development
                                     Tel: [phone]
                                     Mob: [phone]
                                                      Email: [e-mail]
                                                                                
                                                                    Michael Shaw
                                    Oriel Securities Limited (Nominated Adviser)
                                                        Tel: [phone]
                                                                                
                                                                     Bobby Morse
                                                         Buchanan Communications
                                                       Tel: + 44 (0)20 7466 5000
                                                       Fax: + 44 (0)20 7466 5001
                                                  E-Mail: [e-mail]
                                                        Mob: [phone]
                                                                                
                                                                                


                      This information is provided by RNS
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