Mauritania Drilling Update

Roc Oil Company Limited
15 February 2005



15 February 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 Limited:

'Woodside Mauritania Pty Ltd, a wholly-owned subsidiary of Woodside Petroleum
Ltd., reports the following activity offshore Mauritania since the last report
issued on 8 February 2005.

                                 PSC-B, Block 4
                    Tiof-6 and Chinguetti Development wells

Tiof-6 Appraisal well
The 'West Navigator' drillship commenced production testing operations on the
Tiof-6 appraisal well and at midnight on 14 February 2005, an extended flow
period was underway.

Since the last report, the well has flowed at a maximum rate of approximately
12,400 barrels of oil plus 11.0 million standard cubic feet of gas per day
constrained by a 104/64 inch choke. Currently the well is flowing at a stable
rate of approximately 9,150 barrels of oil per day in the main flow period
constrained by a 72/64 inch choke.

Chinguetti Development wells
The 'Stena Tay' drill rig continued operations on Chinguetti Development wells.
Woodside does not plan to issue announcements regarding operations on Chinguetti
development wells, but will do so if necessary to comply with its continuous
disclosure obligations under the ASX Listing Rules.

All reported drilling depths are referenced to the rig rotary table and all
times are Universal Time (UTC) (Mauritanian time).

The locations of the Chinguetti Oil Field, the Tiof and Banda discoveries and
exploration wells are shown on the attached map*.

Wells are expected to be drilled in two production sharing contract areas during
the remainder of the 2005 campaign.'

Participating Interests in the areas are:

          +-----------------------------------+-----------+----------+
          |              Company              |   PSC-A   |  PSC-B   |
          +-----------------------------------+-----------+----------+
          |Woodside group companies (Operator)|  53.846%  | 53.846%  |
          +-----------------------------------+-----------+----------+
          |Hardman group companies            |   24.3%   |  21.6%   |
          +-----------------------------------+-----------+----------+
          |BG group companies                 |  13.084%  |  11.63%  |
          +-----------------------------------+-----------+----------+
          |Premier group companies            |    --     |  9.231%  |
          +-----------------------------------+-----------+----------+
          |Fusion group companies             |  4. 615%  |    --    |
          +-----------------------------------+-----------+----------+
          |Roc Oil group companies            |  4.155%   |  3.693%  |
          +-----------------------------------+-----------+----------+

Commenting on the Tiof-6 flow, ROC's Chief Executive Officer, Dr John Doran,
stated that:

'This is a better than expected result. It augers well for the productivity of
sands within the Tiof channel system although a lot more work needs to be done
before any field-wide commercial implication can be drawn from the result.'

*Map attached to the copy of this release on ROC's website
(http://www.rocoil.com.au/Pages/ASX_Releases/2005_Releases/February-2005.html)


Bruce Clement                             For further information please contact
Chief Operating Officer                                         Dr John Doran on
                                                            Tel: [phone]
                                                            Fax: [phone]
                                                    E-mail: [e-mail]
                                                         Or visit ROC's website:
                                                               www.rocoil.com.au

                                                                   Dr Kevin Hird
                                            General Manager Business Development
                                                       Tel:  [phone]
                                                       Fax:  [phone]
                                                     Email:  [e-mail]

                                                                    Nick Lambert
                                            Bell Pottinger Corporate & Financial
                                                       Tel:  [phone]



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