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               31 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     237,232,500     6.39%      2,901,817     0.08%
securities
(2) Derivatives   18,569,820     0.50%      1,973,699     0.05%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            256,672,305     6.91%      4,875,516     0.13%

(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           30,704               2.9402
Purchase           3,710                3.0450
Purchase           25,432               3.0450
Purchase           37,933               3.0450
Purchase           272,011              3.0450
Purchase           83,693               3.0450
Purchase           42,153               3.0659
Purchase           103,300              3.0450
Purchase           4,139                3.0450
Purchase           110,489              3.0450
Purchase           46,017               3.0450
Purchase           11,521               2.8163
Purchase           3,135                3.0450
Purchase           68,074               2.9402
Purchase           7,558                2.8589
Purchase           185,448              2.9110
Purchase           151,811              2.8907
Purchase           33,894               2.9402
Purchase           13,817               2.9066
Purchase           57,288               2.8578
Purchase           73,070               2.8636
Purchase           94,940               2.8474
Purchase           5,940                3.0450
Purchase           740                  3.0450
Purchase           85,712               3.0450
Purchase           19,740               3.0450
Purchase           774                  3.0450
Purchase           14,431               3.0450
Purchase           20,656               3.0450
Purchase           6,024                3.0450
Purchase           8,290                3.0450
Purchase           806                  3.0450
Purchase           3,211                3.0450
Sale               6,087                3.0450
Sale               2,025                3.0480
Sale               10,124               3.0450
Sale               7,834                2.8303
Sale               9,622                3.0450
Sale               13,817               2.9066
Sale               4,500                3.0455
Sale               110,171              3.0511
Sale               1,047                2.8700
Sale               3,481                2.9000
Sale               69,706               3.0450
Sale               404,704              3.0155
Sale               600,000              2.9201
Sale               14,431               3.0450
Sale               367,074              2.9887
Sale               16,263               2.9607
Sale               3,902                3.0450
Sale               1,172                2.9000
Sale               208,809              2.8753
Sale               41,484               2.9342
Sale               137,848              3.0450
Sale               50,292               3.0450
Sale               48,515               3.0450
Sale               4,936                3.0450
Sale               4,845                2.8198
Sale               9,428                3.0450
Sale               1,686                2.8776
Sale               158,780              3.0450
Sale               15,063               3.0450
Sale               2,571                3.0450
Sale               202,444              2.9438
Sale               2,700                3.0480
Sale               7,463                2.8500
Sale               1,864                3.0450
Sale               10,091               3.0450
Sale               4,934                3.0450
Sale               750                  2.8905
Sale               4,500                3.0480
Sale               2,250                2.8680
Sale               29,956               2.9593
Sale               2,700                2.8680
Sale               42,153               3.0510
Sale               1,155                3.0450

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          208809        2.8753
CFD            Long          8699          2.8775
CFD            Long          13817         2.9065
CFD            Long          600000        2.92
CFD            Long          41484         2.9341
CFD            Long          202444        2.9437
CFD            Long          29956         2.9593
CFD            Long          367074        2.9887
CFD            Long          404704        3.0155
CFD            Long          73926         3.046
CFD            Long          42153         3.051
CFD            Long          110171        3.0511
CFD            Long          7564          3.0564
CFD            Short         94940         2.8473
CFD            Short         57288         2.8578
CFD            Short         7558          2.8589
CFD            Short         73070         2.8635
CFD            Short         4748          2.8797
CFD            Short         151811        2.8906
CFD            Short         13817         2.9065
CFD            Short         185448        2.911
CFD            Short         132672        2.9401
CFD            Short         140248        2.9689
CFD            Short         18258         2.969
CFD            Short         34242         3.0425
CFD            Short         29607         3.0445
CFD            Short         42153         3.0658

(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                         03 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