Transaction in Own Shares

Centrica PLC
01 December 2004

Centrica plc



Repurchase of shares



Centrica plc announces that on 1 December 2004 it purchased for cancellation
1,380,000 of its ordinary shares at a price of 247.2353p per share from Morgan
Stanley & Co. International Limited.



Enquiries

Kath Kyle             Centrica plc                  01753 494902

Jon Bathard-Smith    Morgan Stanley & Co. International Limited  020 7425 8000


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