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               23 October 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     239,458,050     6.45%      2,946,126     0.08%
securities
(2) Derivatives   20,468,678     0.55%      1,313,780     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            260,796,713     7.02%      4,259,906     0.11%

(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           122                 Transfer
Purchase           5,192               3.1180
Purchase           761                 Transfer
Purchase           201,364             3.0678
Purchase           18,200              3.0225
Purchase           3,879               3.0887
Purchase           160,477             3.0697
Purchase           400                 3.0725
Purchase           103,196             3.0732
Purchase           17,248              3.0252
Purchase           6,952               3.1200
Purchase           2,628               3.0492
Purchase           9,606               3.0675
Purchase           47,876              3.0423
Purchase           9,306               3.0718
Sale               9,425               3.0823
Sale               7,906               3.0545
Sale               186                 3.0676
Sale               7,592               3.1229
Sale               40,940              3.0780
Sale               194,988             3.0667
Sale               4,197               3.0425
Sale               9,425               3.0823
Sale               259,719             3.0870
Sale               122,732             3.0817
Sale               239,509             3.0836
Sale               157,382             3.0837
Sale               4,320               3.0630
Sale               2,027               3.1200
Sale               400                 3.0725
Sale               2,122               Transfer
Sale               1,500               3.0605
Sale               89                  3.0580
Sale               96,870              3.0791

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          7906          3.0545
CFD            Long          194988        3.0667
CFD            Long          400           3.0725
CFD            Long          96870         3.0791
CFD            Long          122732        3.0817
CFD            Long          229319        3.0831
CFD            Long          157382        3.0836
CFD            Long          259719        3.087
CFD            Long          10190         3.0943
CFD            Long          7592          3.1229
CFD            Short         18200         3.0225
CFD            Short         17248         3.0252
CFD            Short         201364        3.0677
CFD            Short         160477        3.0696
CFD            Short         9306          3.0717
CFD            Short         400           3.0725
CFD            Short         103196        3.0732
CFD            Short         83924         3.0786
CFD            Short         158072        3.0813
CFD            Short         5192          3.1179

(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                         24 October 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