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               27 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     238,210,354     6.41%      2,694,967     0.07%
securities
(2) Derivatives   19,741,213     0.53%        769,237     0.02%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            258,821,552     6.97%      3,464,204     0.09%

(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           12,200              2.9950
Purchase           2,068               3.0000
Purchase           119,065             2.9983
Purchase           140                 2.9950
Purchase           133                 Transfer
Purchase           486                 Transfer
Purchase           205,668             2.9956
Purchase           1,700               3.0012
Purchase           115,528             2.9925
Purchase           26,591              2.9950
Purchase           450                 2.9975
Purchase           39,650              2.9950
Purchase           5,010               3.0800
Purchase           7,957               3.0800
Purchase           3,118               3.0275
Purchase           3,310               3.0275
Purchase           8,103               2.9950
Purchase           4,496               2.9950
Purchase           9,733               2.9950
Purchase           15,802              3.0020
Purchase           2,931               2.9825
Purchase           31,213              2.9960
Purchase           53,767              2.9989
Purchase           697,600             2.9954
Sale               372                 3.0100
Sale               1,500               2.9855
Sale               2,250               3.0100
Sale               356                 3.0100
Sale               1,560               3.0100
Sale               1,642               3.0100
Sale               528                 3.0100
Sale               1,500               3.0100
Sale               787                 3.0100
Sale               927                 3.0100
Sale               2,250               3.0100
Sale               1,100               3.0100
Sale               1,296               3.0100
Sale               1,161               3.0100
Sale               12,720              3.0020
Sale               11,700              3.0100
Sale               1,350               3.0100
Sale               1,500               3.0100
Sale               2,430               3.0100
Sale               1,935               3.0100
Sale               600                 3.0100
Sale               1,170               3.0100
Sale               1,800               3.0100
Sale               1,000               3.0100
Sale               900                 3.0100
Sale               1,912               3.0100
Sale               2,000               3.0100
Sale               1,062               3.0100
Sale               1,200               3.0100
Sale               13,576              2.9935
Sale               1,800               3.0100
Sale               6,915               2.9935
Sale               1,327               3.0100
Sale               132,234             2.9925
Sale               1,000               3.0100
Sale               133                 Transfer
Sale               6,500               2.9950
Sale               2,942               Transfer
Sale               133                 3.0405
Sale               3,804               2.9838
Sale               103,400             3.0005
Sale               648                 2.9930
Sale               18,283              3.0020
Sale               13,864              2.9999
Sale               4,882               3.0074
Sale               1,248               2.9950
Sale               1,980               3.0100
Sale               1,863               3.0100
Sale               226                 3.0450
Sale               37,517              3.0034
Sale               850                 3.0100
Sale               9,106               2.9950
Sale               1,000               2.9930
Sale               1,700               3.0012
Sale               1,917               3.0100
Sale               2,250               2.9930
Sale               33,231              2.9935
Sale               213,661             3.0059
Sale               1,350               3.0100
Sale               540                 3.0105
Sale               1,440               3.0100
Sale               147                 3.0400
Sale               2,160               3.0100
Sale               27,167              2.9935
Sale               486                 Transfer
Sale               286,386             2.9961
Sale               1,944               3.0100

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          3804          2.9838
CFD            Long          132234        2.9924
CFD            Long          32721         2.9932
CFD            Long          1248          2.995
CFD            Long          286386        2.996
CFD            Long          13864         2.9999
CFD            Long          103400        3.0004
CFD            Long          1700          3.0011
CFD            Long          37517         3.0033
CFD            Long          213661        3.0059
CFD            Long          4882          3.0074
CFD            Short         13396         2.9899
CFD            Short         115528        2.9925
CFD            Short         140           2.995
CFD            Short         697600        2.9954
CFD            Short         205668        2.9955
CFD            Short         31213         2.996
CFD            Short         314072        2.9961
CFD            Short         119065        2.9982
CFD            Short         2068          3
CFD            Short         1700          3.0011
CFD            Short         40371         3.0018
CFD            Short         15802         3.002

(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                         28 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