CliffHead Commence Production

Roc Oil Company Limited
02 May 2006




1 May 2006

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

                   CLIFF HEAD OIL FIELD COMMENCES PRODUCTION

ROC, as Operator of the Cliff Head Oil Field Development Project in the Perth
Basin, offshore Western Australia, is pleased to advise that oil production
commenced 1 May 2006 at 0530 hours Western Standard Time.

First production commenced from the near vertical CH-6 well at an initial
controlled clean-up rate of approximately 1,000 barrels of oil per day ('BOPD').
Field production rates are expected to increase to greater than 10,000 BOPD as
the five other designated oil producers, including four horizontal wells, are
brought on stream during the next several weeks.

The produced oil is transported via a 14 km pipeline to the onshore Arrowsmith
Stabilisation Plant from where it will be trucked to the new BP Crude Oil
Unloading Facility at Kwinana, which was purpose-built to handle oil deliveries
from the Cliff Head Oil Field.

Commenting on the commencement of oil production at Cliff Head, ROC's Chief
Executive Officer, John Doran said:

'First oil production from Cliff Head, achieved within 14 months of the Joint
Venture deciding to develop the field is an obvious landmark for all concerned.
For ROC, it will be a further revenue boost, particularly given current oil
prices.

This full cycle project, running from discovery to production, represents a
number of 'firsts' for the Australian oil industry. However, ROC's current focus
is not on statistical niceties as much as completing the other wells and
bringing them on stream. In this sense, first oil from Cliff Head is more like
another day at the office rather than an end in itself'.

The Cliff Head Joint Venture comprises:                 
                                                          Equity

Roc Oil (WA) Pty Limited                                  37.5% & Operator
AWE Oil (Western Australia) Pty Ltd                       27.5%
Wandoo Petroleum Pty Ltd                                  24.0%
ARC (Offshore PB) Limited                                  6.0%
CIECO Exploration and Production (Australia) Pty Ltd       5.0%

Michelle Manook                           For further information please contact
General Manager - Corporate Affairs                             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]
                                                       Fax:  [phone]
                                                     Email:  [e-mail]
                                                                                
                                                                    Nick Lambert
                                            Bell Pottinger Corporate & Financial
                                                       Tel:  [phone]





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