Holding(s) in Company

Centrica PLC
                  



12 September 2006

Centrica plc

Centrica plc received on 12 September 2006 a notification dated 11 September
2006 stating that the interest of Barclays PLC 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

Barclays PLC

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
Barclays Global Investors Japan Trust & Banking                    4,098,684
Barclays Private Bank and Trust  Ltd                                 440,881
Barclays Global Investors, N.A.                                   25,751,606
Gerrard Limited                                                   18,004,958
Barclays Life Assurance Co Ltd                                     4,829,122
Barclays Bank Trust Company Ltd                                       91,375
Barclays Global Investors Ltd                                     33,469,193
Barclays Global Fund Advisors                                     12,316,667
Barclays Capital Securities Ltd                                    7,138,572
Barclays Private Bank Ltd                                          2,350,658
Barclays Capital Inc                                                 888,484
Barclays Private Bank and Trust Ltd                                   18,935
Barclays Global Investors Canada Ltd                                 267,654
Barclays Global Investors Japan Ltd                                  379,863
Barclays Global Investors Australia Ltd                              317,078

5. Number of shares / amount of stock acquired

Not known

6. Percentage of issued class

Not known

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

Not known

11. Date company informed

12 September 2006

12. Total holding following this notification

                                                                       110,363,730

13. Total percentage holding of issued class following this notification

                                                                             3.015

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

12 September 2006