Transaction in Own Shares

Centrica PLC
19 September 2005


Centrica plc

Repurchase of shares

Centrica plc announces that on 19 September 2005 it purchased for cancellation
2,000,000 of its ordinary shares at a price of 254.1140p per share from Hoare
Govett's affiliate, ABN AMRO Bank N.V. London Branch.

Enquiries
Kath Kyle                  Centrica plc                         01753 494902
Jeremy Thompson            ABN AMRO Bank N.V. London Branch     020 7678 8000




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