Holding(s) in Company

Roc Oil Company Limited
13 December 2006

13 December 2006



                    Roc Oil Company Limited ('The Company')


                         Substantial Shareholder Notice





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



-                      As at 5 December 2006, Commonwealth Bank of Australia and
its affiliates held 14,971,847 fully paid ordinary shares in the Company,
representing 5.03% 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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