Activity Update: Drilling

Roc Oil Company Limited
02 April 2008





2 April 2008

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

                           ACTIVITY UPDATE: DRILLING

1. WA-286-P, 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 1 April 2008, the Dunsborough-2 appraisal
well in WA-286-P in the offshore Perth Basin, Western Australia has completed
wireline logging operations. The pressure and fluid sampling programmes have
confirmed that the cored section in which oil shows were noted does not contain
producible hydrocarbons. As at 0600 hours (local time) on 2 April 2008 the
current operation was preparing to plug and abandon the well.

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%

2. Offshore Mauritania

Roc Oil (Mauritania) Company, a wholly owned subsidiary of ROC, advises that as
at 0600 hours (local time) on 31 March 2008, the Khop-1 exploration well has
been plugged and abandoned.

The Atwood 'Hunter' drilling rig is currently moving to drill an appraisal well
on the 2002 Banda Oil and Gas discovery. The well is approximately 60 kilometres
off the Mauritanian coast and is the second in the two well exploration/
appraisal programme, is located in PSC Area B.

Participating Interests in the PSC Area C, Block 6 Joint Venture are:

    Roc Oil (Mauritania) Company..........................................5.000%
    PC Mauritania I Pty Ltd (Operator)...................................37.578%
    Petronas Carigali Overseas Sdn Bhd.................................. 35.000%
    Tullow Oil plc.......................................................22.422%

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%

3. Cabinda South Block, Onshore Angola

Roc Oil (Cabinda) Company, a wholly owned subsidiary of ROC, advises that the
Coco-1 exploration well commenced drilling on 25 March 2008. As at 0600 hours
(local time) on 1 April 2008, the well had been drilled to the intermediate
casing point at 635 mBRT.

Coco-1, which is on the Lele High approximately 1.4 kilometres north of Milho-1,
is the fifth well in the current seven well exploration drilling programme and
is expected to be finished by the end of May 2008.

Consistent with ROC's established practice regarding its Angolan drilling
activity, the Company will only issue public statements at the beginning and end
of each drilling operation after the relevant information has been collected and
carefully analysed.

Participating Interests in the Cabinda South Block Joint Venture are:

    Roc Group Companies (Operator) ..........................................60%
    Force Petroleum Limited..................................................20%
    Sonangol P&P S.A.........................................................20%

4. Blane Oil Field, North Sea

Roc Oil (GB) Limited, a wholly owned subsidiary of ROC, advises that as at 0600
hours (local time) on 31 March 2008, the 'Ocean Princess' rig was completing
logging in the 30/3a-3Z sidetrack water injection well which has been drilled to
a Total Depth of 3,622 mBRT. The forward plan is to run 9-5/8' casing.

Unitised Interests in the Blane Oil Field are:

    Roc Oil (GB) Limited...................................................12.5%
    Talisman Energy (UK) Limited...........................................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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