Holding(s) in Company

Centrica PLC
                  

Centrica plc

Centrica plc received on 16 June 2004 a notification dated 15 June 2004 stating
that the holdings 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
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


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                                           2,807,148
State Street Bank & Trust Company                                       3,463,600
Chase Nominees Limited                                                 21,454,752
JP Morgan Chase                                                             6,000
HSBC                                                                    1,668,292
Sumitomo T&B                                                              401,100
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                                                   967,200
Nortrust Nominees                                                          12,300
Lloyds Bank Nominees Limited                                            1,099,300
MSCO                                                                      170,600
Chase Nominees Ltd                                                        739,200
ds 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
Goldman Sachs and CO.                                                     104,100
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                                                      7,399,326
Mellon Bank                                                               699,544
Citibank                                                                  787,360
HSBC                                                                      386,500
Bank of New York London                                                   560,300
Northern Trust                                                            640,700
Chase Nominees Ltd                                                      3,332,551
Northern Trust                                                            971,762
Chase Nominees Ltd                                                      6,120,192
Bank of New York-London                                                19,519,727
HSBC                                                                   40,232,036
Chase Manhattan Bank London                                            10,847,180
Deutche Bank                                                            2,758,805
Northern Trust                                                          6,454,086
JP Morgan                                                              14,575,722
Citibank                                                                  101,425
Mellon Nominees Ltd                                                     1,118,207
State Street Nominees Ltd                                               2,170,496
Nortrust Nominees Ltd                                                   4,107,278
Morgan Stanley                                                          1,229,300
National Australia Bank                                                   168,700
Bank of New York, Brussels                                              1,803,742
PICG                                                                       14,775
State Street Bank & Trust                                               4,160,078
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                                                             353,600
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


20 May 2004


12. Total holding following this notification


                                                                       207,235,818


13. Total percentage holding of issued class following this notification


                                                                              4.85%


14. Any additional information


None


15. Name of contact and telephone number for queries


Ian Ritchie 01753 494 017


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

Ian Ritchie


Date of notification


20 May 2004