Exploration Drilling Update

Roc Oil Company Limited
11 April 2006


11 April 2006



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

                          EXPLORATION DRILLING UPDATE

1.  Jacala-1, WA-351-P, Carnarvon Basin, Offshore Western Australia (ROC: 20%)

ROC advises that the BHP Billiton-operated Jacala-1 wildcat exploration well in
WA-351-P re-commenced drilling operations on 10 April 2006, following the second
evacuation of personnel from the Atwood Eagle rig due to further cyclone
activity.

As at 0600 hrs Western Standard Time on 11 April 2006, the well had been drilled
a further 530 metres to a depth of 1,670 metres below rotary table, in a water
depth of 1,062 metres and the current operation is pulling out of hole at
approximately 550 metres below rotary table in preparation for running 13 3/8
inch casing. The well is now expected to take about seven days to reach a total
depth of 2,322 metres.

Jacala-1 is located approximately 200 km west of Barrow Island and 100 km
northwest of the Enfield Oil and Gas Field.

2.  Willows-1, PEDL030, Onshore UK (ROC: 100% & Operator)

ROC advises that further to its release on 28 March 2006, and after the setting
of the surface conductor was completed at 127 metres below rotary table, the ROC
Explorer rig has commenced drilling activity on a 24 hour basis at the Willows-1
exploration well location on 9 April 2006. The current operation at 2130 hrs UK
Time on 10 April was drilling ahead in 143/4 inch hole at a depth of 170 metres
below rotary table. The well is expected to take about 30 days to reach a total
depth of 2,550 metres.

Willows-1 is located 55 km east of York and approximately 15 km south of
Scarborough.

Michelle Manook                          For further information please contact:
General Manager - Corporate Affairs                             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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