Holding(s) in Company

Roc Oil Company Limited
19 September 2007



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

                         Substantial Shareholder Notice


On 18 September 2007, the Company was notified that the Commonwealth Bank of
Australia and its affiliates held 14,877,579 fully paid ordinary shares in the
Company, representing 4.98% 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]



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