Transaction in Own Shares

Centrica PLC
22 December 2005



22 December 2005


                                  Centrica plc

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                             Purchase of own shares

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Centrica plc announces that it has today purchased for cancellation 500,000
Ordinary shares at an average price of 249.28p per share via UBS Limited.


Enquiries


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


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