Holding(s) in Company

Centrica PLC
                  

                           9 September 2005

Centrica plc

Centrica plc received on 9 September 2005 a notification stating that the
interest of Petronas International Corporation Limited in Centrica plc
constituted a notifiable interest for the purposes of section 198 of the
Companies Act 1985.

                              SCHEDULE 10

               NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company


Centrica plc


2. Name of shareholder(s) having a major interest


Petronas International Corporation Limited


3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18

Not known


4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

Not known


5. Number of shares / amount of stock acquired


36,000,000


6. Percentage of issued class


0.98


7. Number of shares / amount of stock disposed


N/A


8. Percentage of issued class


N/A


9. Class of security


Ordinary 6 14/81 pence


10. Date of transaction


7 and 8 September 20005


11. Date company informed


9 September 2005


12. Total holding following this notification


145,000,000


13. Total percentage holding of issued class following this notification


3.95


14. Any additional information


None


15. Name of contact and telephone number for queries


Robin Healy  01753 494 017


16. Name and signature of authorised company official responsible for making
this notification

Robin Healy


Date of notification


9 September 2005