Transaction in Own Shares

Centrica PLC
04 October 2005



04 October 2005

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

Centrica plc announces that it has today purchased for cancellation 4,000,000
Ordinary shares at a price of 249.0222 per share via UBS Limited.


Enquiries

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


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