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               14 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     239,168,351     6.44%      2,214,722     0.06%
securities
(2) Derivatives   20,740,866     0.56%      1,562,849     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            260,779,202     7.02%      3,777,571     0.10%

(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           7,345               2.9735
Purchase           54,626              2.8963
Purchase           1,600               2.8500
Purchase           185,913             2.8847
Purchase           84,155              2.9048
Purchase           38,542              2.9091
Purchase           115,780             2.9374
Purchase           200                 2.9725
Purchase           46,539              2.8575
Purchase           5,194               2.9025
Purchase           12,832              2.9025
Purchase           89,824              2.9025
Purchase           27,465              2.9188
Purchase           4,686               2.9425
Purchase           68,586              2.8433
Purchase           45,795              2.8725
Purchase           2,964               2.8099
Purchase           13,318              2.9996
Purchase           44,493              2.9599
Purchase           87,308              2.8593
Purchase           931                 2.9800
Purchase           12,874              2.8954
Purchase           413,965             2.8440
Purchase           744                 2.8700
Sale               312,403             3.0038
Sale               2,400               2.7299
Sale               102,386             2.9025
Sale               187,286             2.9021
Sale               1,600               2.8500
Sale               744                 2.8700
Sale               9,860               2.8331
Sale               68,226              2.8728
Sale               100,029             2.9127
Sale               4,028               2.9169
Sale               13,988              2.9409
Sale               326,635             2.9464
Sale               1,350               2.8250
Sale               1,600               3.0105
Sale               150,721             2.8700
Sale               83,095              2.8894
Sale               10,200              2.9728
Sale               32,510              2.9732
Sale               445                 Transfer
Sale               744                 3.0025
Sale               1,815               Transfer
Sale               19,542              2.9775
Sale               164,390             2.9456
Sale               876,833             2.9920
Sale               45,795              2.8725
Sale               46,539              2.8575
Sale               4,000               2.9768

NB: The below transactions which were previously disclosed have been cancelled
Deal Date  Purchase/Sale Number of Securities Price per unit (GBP)
13/10/2008 Sale          3,600                2.6850

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2400          2.7298
CFD            Long          9860          2.8331
CFD            Long          25700         2.8337
CFD            Long          1600          2.85
CFD            Long          68226         2.8727
CFD            Long          187286        2.902
CFD            Long          17584         2.9025
CFD            Long          74329         2.9399
CFD            Long          13988         2.9408
CFD            Long          164390        2.9456
CFD            Long          326635        2.9464
CFD            Long          10200         2.9728
CFD            Long          32510         2.9732
CFD            Long          93215         2.9863
CFD            Long          876833        2.992
CFD            Long          312403        3.0038
CFD            Short         68586         2.8433
CFD            Short         413965        2.8439
CFD            Short         1600          2.85
CFD            Short         87308         2.8592
CFD            Short         185913        2.8847
CFD            Short         12874         2.8953
CFD            Short         54626         2.8962
CFD            Short         84155         2.9047
CFD            Short         38542         2.909
CFD            Short         75780         2.9138
CFD            Short         44493         2.9598
CFD            Short         200           2.9725
CFD            Short         7345          2.9734
CFD            Short         40000         2.9819

NB: The below transactions which were previously disclosed have been cancelled
Deal Date  Long/Short Number of Securities Price per unit (GBP)
13/10/2008 Long       3,600                2.685

(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                         15 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