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               24 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     237,843,753     6.40%      3,533,084     0.10%
securities
(2) Derivatives   20,857,750     0.56%      1,160,568     0.03%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            259,571,488     6.99%      4,693,652     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           143,682             3.0750
Purchase           6,390               3.0495
Purchase           51,068              3.0750
Purchase           31,372              3.0351
Purchase           400                 3.0475
Purchase           38,495              3.0227
Purchase           5,927               3.0750
Purchase           420,349             3.0330
Purchase           135,767             3.0311
Purchase           104,156             3.0271
Purchase           48,482              3.0316
Purchase           28,079              3.0750
Purchase           230,707             3.0750
Purchase           1,197               3.0325
Purchase           36,624              3.0750
Purchase           6,442               3.0088
Sale               83,710              3.0489
Sale               17,190              3.0382
Sale               41,000              3.0614
Sale               900                 3.0900
Sale               247,468             3.0431
Sale               400                 3.0475
Sale               85,318              3.0489
Sale               15,997              3.0402
Sale               128,729             3.0314
Sale               503,524             3.0400
Sale               3,103               2.9775
Sale               36,000              3.0614
Sale               301                 2.8925
Sale               7,264               3.0467
Sale               66,470              3.0460
Sale               75,038              3.0459
Sale               9,324               3.0297
Sale               5,227               3.0469
Sale               6,547               3.0468
Sale               936                 3.0430
Sale               1,290               3.0280
Sale               22,863              3.0463
Sale               301,098             3.0403
Sale               18,119              3.0464
Sale               49,423              3.0361
Sale               8,450               3.0466
Sale               14,254              3.0464
Sale               26,065              3.0462
Sale               150,518             3.0460
Sale               531,037             3.0460
Sale               110,631             3.0460
Sale               35,539              3.0460
Sale               144,468             3.0314
Sale               145,363             3.0431
Sale               12,008              3.0465

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          144468        3.0313
CFD            Long          128729        3.0314
CFD            Long          36175         3.0321
CFD            Long          49423         3.036
CFD            Long          17190         3.0381
CFD            Long          503524        3.04
CFD            Long          15997         3.0401
CFD            Long          301098        3.0402
CFD            Long          247468        3.043
CFD            Long          109188        3.0466
CFD            Long          400           3.0475
CFD            Short         38495         3.0227
CFD            Short         104156        3.027
CFD            Short         205006        3.0288
CFD            Short         135767        3.031
CFD            Short         48482         3.0316
CFD            Short         420349        3.0329
CFD            Short         31372         3.0351
CFD            Short         15997         3.0402
CFD            Short         83998         3.0411
CFD            Short         400           3.0475
CFD            Short         6390          3.0494

(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                         27 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