Activity Update: Drilling

Roc Oil Company Limited
30 April 2008





30 April 2008

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

                           ACTIVITY UPDATE: DRILLING

1.   Offshore Mauritania

Roc Oil (Mauritania) Company, a wholly owned subsidiary of ROC, advises that as
at 0100 hours (local time) on 28 April 2008, the Banda NW ST-1 sidetrack well,
had reached a Total Depth of 2,934 mBRT and wireline logs, including sampling
and pressure measurement tools, were being run.

Preliminary logging results indicate that the well has encountered oil and gas
columns with contacts similar to those seen in the discovery well, approximately
2 kilometres to the east.

Participating Interests in the PSC Area B Joint Venture are:

    ROC Group Companies...................................................3.693%
    PC Mauritania I Pty Ltd (Operator)...................................53.846%
    Tullow Oil plc.......................................................21.600%
    Mauritania Holdings B.V..............................................11.630%
    Premier Oil Mauritania B Limited......................................9.231%

2.   Blane Oil Field, North Sea

Roc Oil (GB) Limited, a wholly owned subsidiary of ROC, advises that as at
0600 hours (local time) on 25 April 2008, the 'Ocean Princess' rig had moved off
location following successfully completing injectivity tests on the 30/3a-3z
well.

The forward programme is to finalise the connection of the 30/3a-3z well to the
Ula Platform and commission the well by the end of May 2008.

Unitised Interests in the Blane Oil Field are:

    Roc Oil (GB) Limited...................................................12.5%
    Talisman Energy (UK) Limited (Operator)................................25.0%
    Talisman Energy Norge AS...............................................18.0%
    MOC Exploration (UK) Limited(a subsidiary of Nippon Oil Corporation)...14.0%
    ENI UK Limited.........................................................13.9%
    ENI ULX Limited.........................................................4.1%
    Bow Valley Petroleum (UK) Limited......................................12.5%

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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