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               28 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     237,891,773     6.41%      1,890,549     0.05%
securities
(2) Derivatives  18,226,960      0.49%        999,788     0.03%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            256,988,718     6.92%      2,890,337     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           156,105             2.9355
Purchase           4,407               2.9229
Purchase           335                 2.9225
Purchase           776                 2.9625
Purchase           119,281             2.9225
Purchase           369,635             2.9393
Purchase           65,000              2.9225
Purchase           25,317              2.9598
Purchase           32,346              2.9225
Purchase           1,300               2.9404
Purchase           298,542             2.9524
Purchase           63,881              2.9225
Purchase           28,065              2.9406
Purchase           180,409             2.9785
Purchase           3,886               2.9225
Purchase           21,720              2.9903
Purchase           356                 Transfer
Purchase           239,976             2.9557
Purchase           569                 2.9225
Purchase           164,191             2.9619
Sale               569                 2.9225
Sale               25,638              2.9654
Sale               15,348              2.9587
Sale               15,109              2.9413
Sale               48,555              2.9225
Sale               133                 2.9930
Sale               12,500              2.9612
Sale               40,472              2.9407
Sale               18,581              2.9577
Sale               119,281             2.9225
Sale               1,300               2.9404
Sale               335                 2.9225
Sale               43,009              2.9666
Sale               198,320             2.9837
Sale               119,047             2.9225
Sale               36,023              2.9346
Sale               22,061              2.9225
Sale               119,834             2.9346
Sale               112,629             2.9346
Sale               18,460              2.9346
Sale               8,957               2.9225
Sale               1,250               2.9480
Sale               2,119               2.9225
Sale               1,768               2.9225
Sale               86,045              2.9346
Sale               23,104              2.9225
Sale               10,285              2.9225
Sale               23,244              2.9346
Sale               38,926              2.9346
Sale               17,817              2.9346
Sale               180,409             2.9785
Sale               1,251               2.9714
Sale               5,000               2.9080
Sale               6,428               2.9225
Sale               712                 2.9755
Sale               428,182             2.9575
Sale               3,000               2.9525
Sale               1,440               2.9525
Sale               49,553              2.9225
Sale               7,000               2.9305
Sale               5,761               2.9225
Sale               2,000               2.9525
Sale               7,722               2.9649
Sale               16,695              2.9225
Sale               5,785               2.9346
Sale               1,670               2.9225
Sale               9,412               2.9801
Sale               1,530               2.9525

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          1300          2.9403
CFD            Long          15109         2.9412
CFD            Long          18581         2.9576
CFD            Long          15348         2.9586
CFD            Long          25638         2.9654
CFD            Long          43009         2.9665
CFD            Long          9412          2.98
CFD            Long          198320        2.9837
CFD            Short         4407          2.9229
CFD            Short         156105        2.9355
CFD            Short         369635        2.9392
CFD            Short         495431        2.94
CFD            Short         1300          2.9403
CFD            Short         28065         2.9405
CFD            Short         257350        2.9407
CFD            Short         298542        2.9523
CFD            Short         10072         2.953
CFD            Short         229904        2.9558
CFD            Short         25317         2.9598
CFD            Short         164191        2.9618
CFD            Short         9482          2.964
CFD            Short         21720         2.9902

(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                         29 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