Holding(s) in Company

Centrica PLC
                  

Centrica plc

Centrica plc received on 20 May 2004 a notification dated 19 May 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                                   3,733,241
State Street Bank & Trust Company                               3,462,600
Chase Nominees Limited                                         26,871,559
JP Morgan Chase                                                     6,000
HSBC                                                            1,578,005
Sumitomo T&B                                                      401,100
State Street Bank & Trust                                       2,159,056
State Street Nominees Ltd                                       2,009,004
HSBC                                                            1,548,100
Northern Trust                                                  1,201,682
Bank of New York London                                           836,391
Nortrust Nominees                                                  11,300
Lloyds Bank Nominees Limited                                      450,450
MSCO                                                               54,260
Chase Nominees Ltd                                                285,471
ds Bank (Stock Exchange Branch) Nominees Limited
 A/C                                                               50,247
BT Globenet Nominees Limited                                      234,009
Mellon Bank                                                       224,146
JP Morgan                                                         158,769
Royal Trust                                                        28,094
MSS Nominees                                                      301,237
Goldman Sachs and CO.                                              29,467
Morgan Stanley Trust Co. Nominees Limited Bank                      2,600
Chase Manhattan Bank London                                    30,211,598
Chase Nominees Ltd                                              8,935,241
Mellon Bank                                                       866,549
Citibank                                                          816,560
HSBC                                                              386,500
Bank of New York London                                           560,300
Northern Trust                                                    425,500
Chase Nominees Ltd                                              3,497,800
Northern Trust                                                  1,014,000
Chase Nominees Ltd                                              5,775,447
Bank of New York-London                                        22,543,472
HSBC                                                           39,189,773
Chase Manhattan Bank London                                    11,760,286
Deutche Bank                                                    3,500,968
Northern Trust                                                  7,220,465
JP Morgan                                                      15,338,077
Citibank                                                          105,425
Mellon Nominees Ltd                                             1,248,900
State Street Nominees Ltd                                       2,442,600
Nortrust Nominees Ltd                                           4,209,442
Morgan Stanley                                                  1,229,300
National Australia Bank                                           103,464
Bank of New York, Brussels                                      2,125,286
PICG                                                               18,875
State Street Bank & Trust                                       4,221,226
Chase Manhattan Bank AG Frankfurt                                 343,201
Brown Brothers Harriman                                           127,200
Northern Trust London                                             595,947
State Street Hong Kong                                             45,000
Brown Brothers Harriman Ltd. LUX                                   37,100
Master Trust Bank of Japan                                         31,753
Bankers Trust                                                     112,351
ING Luxembourg                                                     24,706
Bermuda Far East                                                   45,500
Bank of Bermuda                                                   499,315
Mitsubishi Trust                                                   14,000


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


                                                                       215,259,915


13. Total percentage holding of issued class following this notification


                                                                              5.04%


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


20 May 2004