Substantial ShareholderNotice

Roc Oil Company Limited
10 April 2007


10 April 2007

                    Roc Oil Company Limited ('The Company')

                         Substantial Shareholder Notice

The Company has been notified of the following change in substantial
shareholding:

-   As at 30 March 2007, Commonwealth Bank of Australia and its affiliates held 
    18,242,811 fully paid ordinary shares in the Company, representing 6.12% of 
    the total issued share capital of the Company.


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]
Fax: [phone]
Email: [e-mail]

Nick Lambert
Bell Pottinger Corporate & Financial
Tel: [phone]


                      This information is provided by RNS
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