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               13 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     240,368,636     6.47%      1,321,165     0.04%
securities
(2) Derivatives   19,774,444     0.53%      1,809,516     0.05%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,013,065     7.03%      3,130,681     0.08%

(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           18,306              2.8700
Purchase           138,105             2.7617
Purchase           69,120              2.8230
Purchase           694,466             2.7350
Purchase           1,366               2.7002
Purchase           162,703             2.7197
Purchase           69,813              2.7847
Purchase           9,129               2.6929
Purchase           13,208              2.7232
Purchase           12,098              2.8700
Purchase           80,891              2.7429
Purchase           21,357              2.8700
Purchase           8,559               2.7130
Purchase           5,262               2.7130
Purchase           78,375              2.7127
Purchase           1,992               2.6400
Purchase           2,400               2.7299
Purchase           200                 2.8250
Purchase           744                 2.6500
Purchase           177,966             2.7268
Purchase           3,103               2.7150
Purchase           4,582               2.8298
Purchase           3,040               2.7050
Purchase           271,626             2.7197
Sale               9,988               2.7700
Sale               9,129               2.7165
Sale               34,353              2.8455
Sale               744                 2.6500
Sale               100,581             2.7417
Sale               992                 2.7475
Sale               3,600               2.6850
Sale               14,106              2.7754
Sale               494,075             2.7724
Sale               92,552              2.7666
Sale               192,480             2.8700
Sale               7,177               2.8700
Sale               178                 2.7555
Sale               6,817               2.8700
Sale               531,946             2.7644
Sale               34,970              2.7669
Sale               343                 Transfer
Sale               7,345               2.8696
Sale               3,473               2.8700
Sale               132,674             2.6925
Sale               69,120              2.8700
Sale               228,281             2.8165
Sale               41,803              2.8700

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          3600          2.685
CFD            Long          9129          2.7165
CFD            Long          100581        2.7417
CFD            Long          531946        2.7644
CFD            Long          189616        2.7656
CFD            Long          92552         2.7666
CFD            Long          34970         2.7669
CFD            Long          494075        2.7723
CFD            Long          14106         2.7754
CFD            Long          228281        2.8165
CFD            Long          34353         2.8455
CFD            Long          7345          2.8695
CFD            Long          52965         2.87
CFD            Short         9129          2.6929
CFD            Short         1366          2.7002
CFD            Short         3040          2.705
CFD            Short         78375         2.7127
CFD            Short         434329        2.7196
CFD            Short         177966        2.7267
CFD            Short         2400          2.7298
CFD            Short         694466        2.735
CFD            Short         80891         2.7428
CFD            Short         33812         2.7581
CFD            Short         3491          2.7588
CFD            Short         104293        2.7628
CFD            Short         200           2.825
CFD            Short         4582          2.8298

(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                         14 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