Drilling Update: Perth Basin

RNS Number:5855N
Roc Oil Company Limited
08 February 2008



8 February 2008

                         ROC OIL COMPANY LIMITED ("ROC")

                             STOCK EXCHANGE RELEASE

        DRILLING UPDATE: LILAC-1 EXPLORATION WELL, OFFSHORE PERTH BASIN

Roc Oil (WA) Pty Limited, a wholly owned subsidiary of ROC, advises that since
its last Stock Exchange Release on 4 February 2008, the Lilac-1 exploration well
in WA-286-P, in the North Perth Basin, offshore Western Australia, has drilled
to a Total Depth of 1455 mBRT and wireline logging is underway.

The Lilac-1 exploration well encountered sands with weak gas shows and
fluorescence. However, preliminary interpretation of mud log, Logging While
Drilling (LWD) and drill data indicates that the primary reservoir is water
bearing. A final analysis will be made once wireline logging is completed. It is
expected that the well will be plugged and abandoned.

The forward programme for the Premium "WilCraft" jack-up drilling rig is to move
to the second well of the current programme, Frankland-2, also in WA-286-P.
Frankland-2 will appraise a structure about one kilometre northeast of
Frankland-1 which discovered gas in 2007. Frankland-2 is expected to be
completed by the end of February 2008.

Participating Interests in the WA-286-P joint venture are:

Roc Oil (WA) Pty Limited.................................................. 37.5%
AWE Oil (Western Australia) Pty Ltd....................................... 27.5%
ARC Energy (Offshore PB) Limited.......................................... 30.0%
CIECO Exploration and Production (Australia) Pty Ltd......................  5.0%


In accordance with ASX and AIM Rules, the information in this Release has been
reviewed and approved by Dr John Doran, Chief Executive Officer, Roc Oil Company
Limited, BSc (Hons) Geology, MSc and PhD. Dr Doran, who is a member of the
Society of Petroleum Engineers, has more than 30 years of relevant experience
within the industry and consents to the information in the form and context in
which it appears.


Damian Fisher                            For further information please contact:
General Manager                                                 Dr John Doran on
External Affairs & Investor Relations                       Tel: +61-2-8356-2000
                                                            Fax: +61-2-9380-2635
                                                     Email: jdoran@rocoil.com.au
                                       Or visit ROC's website: www.rocoil.com.au
                                                                                
                                                                   Dr Kevin Hird
                                          General Manager - Business Development
                                     Tel: +44 (0)20 7495 5707/+61 (0)2 8356 2000
                                     Mob: +44 (0)7751 3671 49/+61 (0)417 261 727
                                                     Email:  khird@rocoil.com.au
                                                                                
                                                                    Michael Shaw
                                    Oriel Securities Limited (Nominated Adviser)
                                                       Tel:  +44 (0)20 7710 7600
                                                                                
                                                                     Bobby Morse
                                                         Buchanan Communications
                                                       Tel: + 44 (0)20 7466 5000
                                                       Fax: + 44 (0)20 7466 5001
                                                  E-Mail: bobbym@buchanan.uk.com
                                                        Mob: +44 (0)7802 875 227
                                                                                



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

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