Transaction in Own Shares

Centrica PLC
17 October 2005


17 October 2005


                                  Centrica plc
                              --------------------
                             Purchase of own shares
                             ----------------------


Centrica plc announces that it has today purchased for cancellation 2,000,000
Ordinary shares at a price of 238.3396p per share via UBS Limited.


Enquiries

Centrica Investor Relations           01753 494900
UBS Limited  Jos Trusted             020 7567 8000


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