Substantial Shareholder

Roc Oil Company Limited
10 September 2007





                Roc Oil Company Limited ('The Company' or 'ROC')


                         Substantial Shareholder Notice


On 5 September 2007, the Company was notified of the following change in
substantial shareholding:


-  As at 23 August 2007, JP Morgan Chase & Co and its affiliates held 28,355,119 
   fully paid ordinary shares in the Company, representing 9.50% 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]
Mob: [phone]
Email: [e-mail]


Michael Shaw
Oriel Securities Limited (Nominated Adviser)
Tel: [phone]




                      This information is provided by RNS
            The company news service from the London Stock Exchange
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