Mauritania-Chinguetti-18 Well

Roc Oil Company Limited
24 January 2007



24 January 2007

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

                      OFFSHORE MAURITANIA DRILLING UPDATE
                         CHINGUETTI-18 DEVELOPMENT WELL

Further to its Stock Exchange Release on 9 January 2006 regarding the
Woodside-operated Chinguetti-18 development well in PSC B, ROC advises that as
of 14 January 2007, the well has been drilled to a Total Depth of approximately
2,883 metres measured depth, and is scheduled for completion in mid-February.

Well results are in line with expectations, with an approximate 213 metre gross
oil column (35 metres net) in true vertical depth (TVD) terms, in good quality
reservoir sands which appear well placed to access pressure support from the
Chinguetti-8 (sidetrack 1) water injection well.

Chinguetti-18 is located within the southern part of the Chinguetti Oil and Gas
Field in a water depth of 819 metres, approximately 80 km southwest of the
Mauritanian capital, Nouakchott.

ROC will issue a further announcement on completion of the Chinguetti-18
development well.

Participating interests are:

                  Company                                    Equity
          Roc Oil group companies                            3.24984%
          Woodside group companies (Operator)               47.38448%
          Tullow group companies                            19.00800%
          Societe Mauritanienne des Hydrocarbures           12.00000%
          BG group companies                                10.23440%
          Premier group companies                            8.12328%




Michelle Manook
General Manager - Corporate Affairs

                                         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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