Well Update

Sterling Energy PLC
17 April 2007


17 April 2007


                              STERLING ENERGY PLC
                                 ('Sterling')

                     WELL TEST REULTS FROM GUINEA BISSAU


Sterling Energy, the AIM listed (symbol: SEY) independent oil & gas exploration
and production company, notes the announcement made earlier today by Premier Oil
plc ('Premier Oil') about the Eirozes-1 well in Guinea Bissau, reproduced below.

Extract from the Premier announcement:

'The Eirozes-1 well has been drilled to a total depth of 2,252m.  The well
encountered Albian sandstones as prognosed.  However, wireline logging has been
completed and indicates the well has not encountered any significant
hydrocarbons. The well is now being plugged and abandoned.'

Sterling has a 5% interest in the Esperanca permit on which the well was
drilled.


For further information contact:

Sterling Energy plc ([phone])
Harry Wilson, Chief Executive
Graeme Thomson, Finance Director

Citigate Dewe Rogerson ([phone])
Media enquiries: Martin Jackson / George Cazenove
Analyst enquiries: Nina Soon

www.sterlingenergyplc.com                                     Ticker Symbol: SEY




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