Update: Western Australia

Roc Oil Company Limited
28 March 2008




28 March 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 26 March 2008, the Dunsborough-2 appraisal
well in WA-286-P, in the offshore Perth Basin, Western Australia, has recovered
a second core to surface. Both 24 metre cores cut during the last three days had
100% recovery and good oil shows throughout the 48.6 metre total cored interval
from 1,515 to 1,563.5 mBRT.

As at 0600 hours on 28 March 2008 (local time), the current operation at
Dunsborough-2 was recovering Core No 3 in an effort to define the oil water
contact.

At top reservoir level Dunsborough-2 is 47 metres down structure from
Dunsborough -1, which is 1.6 kilometres to the north and from which light (39o
API) oil was recovered. The top of the cored interval in Dunsborough-2 is two
metres below the top of the reservoir which was encountered 25 metres high to
prognosis.

Dunsborough-2 is scheduled to reach the proposed Total Depth of approximately
1,680 mBRT during the next several days.

Subject to completing the coring programme, drilling to Total Depth and running
a full suite of logs, including wireline sampling, this latest well appears to
point to a potentially significant gross hydrocarbon column both at the
Dunsborough-2 well and for the field as a whole.

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%

Commenting on the Dunsborough-2 appraisal well, ROC's Chief Executive Officer,
John Doran stated that:

'Subject to all the usual - and very valid - caveats about obtaining further
data between now and the end of the well, the Dunsborough-2 results to date
appear to be quite encouraging, particularly given that it is about 50 metres
down structure and 1.6 kilometres south of the discovery well.

While it is way too early to offer any comment regarding reserves, a comparison
of the basic dimensions of the Dunsborough and Cliff Head structures might help
provide shareholders and potential investors with a rough perspective should
Dunsborough-2 prove to have producible oil. Cliff Head, about 50 km south of
Dunsborough, had original recoverable proved and probable oil reserves of almost
16 MMBO; covers an area of about 6 sq km and has a gross oil column of
approximately 60 metres. Dunsborough, as currently understood, covers around 5
sq km and has the capacity for a 90 metre gross oil column.'

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]
                                                                                


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