Exploration Drilling Update

Roc Oil Company Limited
03 May 2006



3 May 2006

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

                          EXPLORATION DRILLING UPDATE

1. Wei-6-12-S-1, Block 22/12, Beibu Gulf, Offshore China (ROC: 40% and Operator)

As at 0600 hours local time on 3 May 2006, the Wei-6-12-S-1 exploration well had
been drilled to a depth of 1,680 metres and the current operation was drilling
ahead in Weizhou formation. The well is expected to have drilled into the first
reservoir target by early next week. Proposed Total Depth is 2,530 metres.

Wei-6-12-S-1 is located in about 30 metres of water approximately 3 km southwest
of the 2002 oil discovery, Wei-6-12-1.

The Block 22/12 Joint Venture comprises:

Roc Oil (China) Company             40% and Operator
Horizon Oil Limited                 30%
Petsec Energy Ltd                   25%
Oil Australia Pty Ltd*               5%
* subsidiary of First Australian Resources

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

As at 2200 hours (UK Time) on 2 May 2006, the Willows1 exploration well had been
drilled to a depth of 980 metres and the current operation was drilling ahead.
Proposed Total Depth is 2,500 metres.

Willows-1 is a potentially large gas prospect located about 55 km east of York
and 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]
                                                                                


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