Drilling Update: Hadda-1, WA

RNS Number:1722K
Roc Oil Company Limited
24 March 2005





24 March 2005


                            ROC OIL COMPANY LIMITED
                              STOCK EXCHANGE RELEASE

          DRILLING ACTIVITY UPDATE: HADDA-1, THE OFFSHORE PERTH BASIN

Roc Oil (WA) Pty Ltd, Operator for and on behalf of the WA-325-P Joint Venture,
advises that, as at 08.00 hours on 24 March, 2005, Australian Western Standard
Time, the Hadda-1 rank wildcat well had reached a Total Depth of 1,831 metres
and logging was underway. Preliminary interpretation of the drilling and logging
data suggests that the well has drilled approximately 20 metres of poor quality
sand with oil shows, immediately below the regional seal and source section and
immediately above good quality sands which appear to be water bearing. A more
definitive comment cannot be made until logging has been completed and all the
data analysed.

Hadda-1, is a vertical well drilled by the ENSCO-56 jack-up drilling rig, in
about 45 metres of water, in WA-325-P, about 150 km northwest of Geraldton,
Western Australia and some 200 km northwest of the Cliff Head Oil Field.

The Hadda Joint Venture comprises:

WA-325-P                             Current      Equities post-deals
                                     Equities     announced but not yet
                                                  completed
Roc Oil (WA) Pty Ltd                  37.50%          37.50%
Apache Northwest Pty Limited          37.50%          37.50%
Voyager (PB) Limited                  10.00%          12.50%
Bounty Oil & Gas NL                   10.00%           7.50%
Wandoo Petroleum Pty Limited           5.00%           5.00%



Bruce Clement                            For further information please contact:
Chief Operating Officer                                         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)207 861 322



                      This information is provided by RNS
            The company news service from the London Stock Exchange

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