Mauritania Drilling Update

RNS Number:4277T
Roc Oil Company Limited
01 November 2005




1 November 2005

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

                      MAURITANIA OFFSHORE DRILLING UPDATE

ROC advises that the following release was made earlier today by Woodside
Petroleum Ltd:

"Woodside Petroleum Ltd. Reports the following activity by its wholly-owned
subsidiary Woodside Mauritania Pty. Ltd. in offshore Mauritania since the last
report issued on 28 October 2005.

PSC Area B: Tevet- 2 and Tevet-2 ST1 Combined Appraisal and Exploration Well

The 'Stena Tay' drill rig completed wireline logging operations of the
Cretaceous exploration objective of the Tevet-2 sidetrack ("ST1"). This included
recovery of oil and rock samples to surface, which established that the
exploration well intersected a gross oil column, now expected to be
approximately 6 metres.

At midnight on 31 October 2005, the well was being plugged and abandoned prior
to the rig moving to the Labeidna-1 exploration well location. Labeidna-1, which
is located 15 kilometres to the south-west of Chinguetti field, will target
Miocene sands.
                                    General

All reported drilling depths are referenced to the rig rotary table and all
times are Mauritanian time, which is the same as Universal Time.

The locations of planned exploration wells, including the addition of Zoule
exploration well in PSC-C Block 6, and the Chinguetti Oil Field are shown on the
attached map*."

Participating Interests in the Chinguetti Joint Venture and relevant PSC areas
are:

   +---------------------------+-----------+----------+----------+----------+
   |          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 copy of this release on ROC's website.
(http://www.rocoil.com.au/Pages/ASX_Releases/2005_Releases/November-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

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