Holding(s) in Company

Sterling Energy PLC
08 July 2005


                      Sterling Energy PLC (the 'Company')

                              Holding in Company


The Company was informed on 7 July 2005 by UBS AG ('UBS') that as at the close
of business on 29 June 2005 they were interested in 60,448,408 ordinary shares
of 1p each in the Company ('Ordinary Shares') representing 4.34 per cent. of the
issued share capital of the Company. This holding is held within the following
subsidiaries of UBS:

Subsidiary                                                             Holding
UBS Global Asset Management (Life) Ltd                              27,317,740
UBS AG London Branch                                                33,130,668

8 July 2005


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