Substantial Shareholder Notic

Roc Oil Company Limited
17 February 2006


17 February 2006

                    Roc Oil Company Limited ('The Company')
                              (ABN 32 075 965 856)

                         Substantial Shareholder Notice

The Company has been notified of the following initial substantial shareholding:

-   As at 15 February 2006, Merrill Lynch (Australia) Pty Limited and its 
    affiliates held 11,338,421 fully paid ordinary shares in the Company, 
    representing 5.25% of the total issued share capital of the Company.


For further information please contact:

Dr John Doran
Tel: [phone]
Fax: [phone]
E-mail: [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]




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