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               17 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     241,183,985     6.49%      2,144,197     0.06%
securities
(2) Derivatives   17,103,641     0.46%      3,141,119     0.08%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            259,157,611     6.98%      5,285,316     0.14%

(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           6,864               3.0100
Purchase           17,229              3.0100
Purchase           2,964               3.0100
Purchase           19,582              3.0056
Purchase           165,610             3.0340
Purchase           51,497              3.0085
Purchase           15,919              3.0100
Purchase           712                 Transfer
Purchase           23,319              3.0331
Purchase           2,100               3.0298
Purchase           35,536              3.0310
Purchase           12,896              3.0287
Purchase           374,701             3.0288
Purchase           98,947              3.0100
Purchase           2,500               3.0255
Purchase           6,032               3.0125
Purchase           3,300               3.0295
Purchase           2,620               3.0100
Purchase           15,260              3.0100
Purchase           2,668               3.0227
Purchase           2,168               3.0300
Purchase           1,071               3.0250
Purchase           6,600               3.0295
Purchase           3,220               3.1425
Purchase           3,440               3.0775
Purchase           6,507               3.0100
Sale               16,568              3.0298
Sale               6,032               3.0125
Sale               25,619              3.0266
Sale               19,582              3.0339
Sale               6,126               3.0335
Sale               3,821               3.0335
Sale               50,597              3.0146
Sale               619                 Transfer
Sale               2,002               3.0280
Sale               7,656               3.0282
Sale               22,015              3.0100
Sale               10,291              3.0195
Sale               88,425              3.0303
Sale               24,210              3.0100
Sale               12,896              3.0287
Sale               1,804               3.0280
Sale               1,530               3.0280
Sale               106,034             3.0258
Sale               2,100               3.0298

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          50597         3.0145
CFD            Long          25619         3.0266
CFD            Long          7656          3.0282
CFD            Long          2100          3.0297
CFD            Long          16568         3.0298
CFD            Long          88425         3.0302
CFD            Long          30565         3.0304
CFD            Long          19582         3.0338
CFD            Short         19582         3.0056
CFD            Short         51497         3.0084
CFD            Short         2668          3.0227
CFD            Short         2500          3.0255
CFD            Short         7085          3.0278
CFD            Short         374701        3.0287
CFD            Short         2100          3.0297
CFD            Short         35536         3.0309
CFD            Short         23319         3.033
CFD            Short         165610        3.0339

(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                         18 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