Holding(s) in Company

Centrica PLC
                  

25 June 2004

Centrica plc

Centrica plc received on 25 June 2004 a notification dated 24 June 2004 stating
that the notifiable interest of FMR Corp. and its direct and indirect
subsidiaries, Fidelity International Limited and its direct and indirect
subsidiaries (both being non-beneficial holders) and Mr E.C. Johnson 3rd (being
a principal shareholder of FMR Corp. and Fidelity International Limited) in
Centrica plc had reduced for the purposes of ss.198-203 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


FMR Corp, Fidelity International Limited and Mr E.C. Johnson 3rd


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

See schedule in 4 below


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

State Street Nominees Limited                                           2,014,915
State Street Bank & Trust Company                                       3,463,600
Chase Nominees Limited                                                 16,078,175
HSBC                                                                    1,205,474
Sumitomo T&B                                                              189,709
State Street Bank & Trust                                               3,057,372
State Street Nominees Ltd                                               4,840,419
HSBC                                                                    1,206,900
Northern Trust                                                          1,492,000
Bank of New York London                                                 1,071,300
Nortrust Nominees                                                          12,300
Lloyds Bank Nominees Limited                                            1,099,300
MSCO                                                                      188,000
Chase Nominees Ltd                                                        739,200
Lloyds Bank (Stock Exchange Branch) Nominees
 Limited A/C                                                              151,200
BT Globenet Nominees Limited                                              735,000
Mellon Bank                                                               473,700
JP Morgan                                                                 425,900
Royal Trust                                                                60,000
MSS Nominees                                                              607,200
Morgan Stanley Trust Co. Nominees Limited Bank                              2,600
BT Globenet Nominees Limited                                               95,733
Chase Manhattan Bank London                                            29,088,353
Chase Nominees Ltd                                                      7,207,277
Mellon Bank                                                               660,249
Citibank                                                                  748,860
HSBC                                                                      361,500
Bank of New York London                                                   525,300
Northern Trust                                                            640,700
Chase Nominees Ltd                                                      1,411,722
Northern Trust                                                            412,247
Chase Nominees Ltd                                                      3,331,946
Bank of New York-London                                                18,288,439
HSBC                                                                   18,948,270
Chase Manhattan Bank London                                            10,099,058
Deutche Bank                                                            2,751,332
Northern Trust                                                          5,657,189
JP Morgan                                                              14,480,622
Citibank                                                                  101,425
Mellon Nominees Ltd                                                     1,047,700
State Street Nominees Ltd                                               2,034,600
Nortrust Nominees Ltd                                                   3,078,363
Morgan Stanley                                                          1,150,200
National Australia Bank                                                   168,700
Bank of New York, Brussels                                              1,518,112
PICG                                                                       14,775
State Street Bank & Trust                                               4,025,900
Chase Manhattan Bank AG Frankfurt                                         270,301
Brown Brothers Harriman                                                   127,200
Northern Trust London                                                     420,347
State Street Hong Kong                                                     35,100
Master Trust Bank of Japan                                                 61,800
Bankers Trust                                                             332,690
ING Luxembourg                                                             56,237
Bermuda Far East                                                           68,400
Bank of Bermuda                                                           532,972
Mitsubishi Trust                                                           21,100


5. Number of shares / amount of stock acquired


Not known


6. Percentage of issued class


                                                                               N/A


7. Number of shares / amount of stock disposed


                                                                               N/A


8. Percentage of issued class


                                                                               N/A


9. Class of security


Ordinary 5 5/9 pence


10. Date of transaction


Not known


11. Date company informed


25 June 2004


12. Total holding following this notification


                                                                       168,888,983


13. Total percentage holding of issued class following this notification


                                                                             3.955%


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


25 June 2004