Exploration Update: Angola

Roc Oil Company Limited
04 September 2007


4 September 2007

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

             EXPLORATION UPDATE: DRILLING ACTIVITY, ONSHORE ANGOLA

Roc Oil (Cabinda) Company, a wholly owned subsidiary of ROC and operator of the
Cabinda South Block, onshore Angola, provides the following drilling activity
update:

1.     Soja-1

The Simmons 80 rig commenced drilling the Soja-1 exploration well on 25 August,
2007. The well's primary target, a post-salt structure, is expected to be
penetrated by the end of September 2007. Subject to drilling progress and the
onset of the rainy season, the well is likely to be suspended for re-entry in 1H
2008 in order to drill into a deeper pre-salt target.

When the Simmons 80 rig demobilises from the Soja-1 location, it will move to a
higher and drier ground where it will drill the Milho-1 and Trigo-1 exploration
wells, both of which have primary targets within the pre-salt and each of which
is expected to take approximately two months to drill.

2.     Cevada-1

The ROC Explorer rig is being relocated from the Massambala discovery to drill
the Cevada-1 exploration well. It is expected that the well will start drilling
during the second half of September and take about one month to reach its
post-salt target.

3.     Reporting Procedures

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


Participating Interests in the Cabinda South Block are:

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


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]



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