Drilling Activity Update

Roc Oil Company Limited
05 April 2007


                         ROC OIL COMPANY LIMITED ('ROC')
                             STOCK EXCHANGE RELEASE

                           DRILLING ACTIVITY UPDATE:
         OFFSHORE PERTH BASIN EXPLORATION DRILLING PROGRAMME COMMENCES

Roc Oil (WA) Pty Limited, advises that as of 1200hrs on 5 April 2007 (Australian
Western Standard Time) the 'Premium Wilcraft' jack up drilling rig was on
location at the Frankland-1 well location in WA-286-P and preparations are
underway to commence drilling.

The Frankland-1 well is the first of a planned three well exploration drilling
programme which will also include the Dunsborough-1 well in WA-286-P and the
Perseverance-1 well in WA-325-P.

Participating Interests in WA-286-P are:
Roc Oil (WA) Pty Ltd (Operator)...............................37.5%
AWE Oil (Western Australia) Pty Ltd...........................27.5%
Wandoo Petroleum Pty Ltd......................................24.0%
ARC (Offshore PB) Limited......................................6.0%
CIECO Exploration and Production (Australia) Pty Ltd...........5.0%

Participating Interests in WA-325-P are:
Roc Oil (WA) Pty Ltd (Operator)...............................37.5%
Apache Northwest Pty Limited..................................37.5%
ARC (Offshore PB) Limited.....................................20.0%
Wandoo Petroleum Pty Ltd...................................... 5.0%



Damian Fisher
General Manager
External Affairs & Investor Relations

                                         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]
                                                                                


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