Rule 8.3 - CENTRICA

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              CENTRICA
Class of relevant security    ORD GBP0.061728395
to which the dealings being
disclosed relate (Note 2)
Date of dealing               05 November 2008

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                            Long                     Short

                      Number       (%)         Number       (%)

(1) Relevant     239,201,376     6.44%      2,177,398     0.06%
securities
(2) Derivatives   17,397,941     0.47%        897,483     0.02%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            257,469,302     6.93%      3,074,881     0.08%

(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number              (%)   Number              (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


  (c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

  (a)  Purchases and sales

Purchase/sale      Number of           Price per unit
                   Securities          (GBP)
Purchase           91,979              3.2313
Purchase           1,000               3.2403
Purchase           12,134              3.2256
Purchase           3,781               3.2252
Purchase           3,167               3.2907
Purchase           86,703              3.2201
Purchase           57,390              3.2662
Purchase           538                 3.2827
Purchase           58,459              3.2518
Purchase           2,968               3.2950
Purchase           22,454              3.2259
Purchase           13,317              3.2259
Purchase           1,239               3.1650
Purchase           15,919              3.2950
Purchase           39,702              3.2950
Purchase           927                 3.2313
Purchase           105,449             3.2317
Purchase           1,062               3.1642
Purchase           4,596               3.2863
Purchase           2,661               3.1642
Purchase           20,796              3.2950
Purchase           3,100               3.2125
Purchase           10,289              3.2950
Purchase           3,702               3.2950
Purchase           296,411             3.2777
Sale               228,529             3.2320
Sale               266                 3.2180
Sale               54,690              3.2580
Sale               325,026             3.2113
Sale               17,987              3.1717
Sale               428,978             3.2587
Sale               3,167               3.2907
Sale               30,724              3.2950
Sale               11,799              3.2950
Sale               1,374               3.2350
Sale               4,553               3.2350
Sale               30,595              3.2391
Sale               3,253               3.2350
Sale               378,832             3.2200
Sale               1,100               3.1605
Sale               1,000               3.2403
Sale               8,902               3.2945
Sale               3,475               3.2350
Sale               2,298               3.1599
Sale               61,274              3.2959
Sale               32,669              3.2945
Sale               1,082               3.1705
Sale               178                 3.3030

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2298          3.1599
CFD            Long          17987         3.1717
CFD            Long          325026        3.2112
CFD            Long          378832        3.2199
CFD            Long          220395        3.2318
CFD            Long          8134          3.236
CFD            Long          1000          3.2402
CFD            Long          54690         3.258
CFD            Long          428978        3.2586
CFD            Long          3167          3.2906
CFD            Long          41571         3.2945
CFD            Long          61274         3.2958
CFD            Short         1239          3.165
CFD            Short         2476          3.1677
CFD            Short         57538         3.1927
CFD            Short         86703         3.22
CFD            Short         175427        3.2226
CFD            Short         3781          3.2251
CFD            Short         105449        3.2317
CFD            Short         1000          3.2402
CFD            Short         58459         3.2517
CFD            Short         77189         3.2529
CFD            Short         5445          3.2531
CFD            Short         57390         3.2662
CFD            Short         296411        3.2776
CFD            Short         538           3.2827
CFD            Short         4596          3.2863
CFD            Short         3167          3.2906
CFD            Short         60833         3.295
CFD            Short         3489          3.2951

(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)


(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)



(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)




4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.




Is a Supplemental Form 8 attached? (Note 9)                 YES


Date of disclosure                         06 November 2008
Contact name                               Geoff Smith
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


SUPPLEMENTAL FORM 8

DETAILS OF OPEN POSITIONS
(This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate)


OPEN POSITIONS (Note 1)
Product name,     Written or  Number of securities   Exercise price   Type, e.g.     Expiry date
e.g. call option  purchased   to which the option    (Note 2)         American,
                              or derivative relates                   European etc.
Option            Purchased   869,985                4.0304           EURO           18/12/2008

Notes

1. Where there are open option positions or open derivative positions (except for CFD's), full details should be given.
Full details of any existing agreements to purchase or to sell should also be given on this form.

2. For all prices and other monetary amounts, the currency must be stated.

For details of the Code's dealing disclosure requirements, see Rule 8 and its Notes which can be viewed on the Takeover
Panel's website at www.thetakeoverpanel.org.uk