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               15 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     240,172,954     6.47%      1,805,709     0.05%
securities
(2) Derivatives   20,383,117     0.55%      1,430,808     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,426,056     7.04%      3,236,517     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           32,072              2.8701
Purchase           12,212              2.9025
Purchase           21,371              2.9025
Purchase           39,689              2.8225
Purchase           18,318              2.9025
Purchase           3,485               2.9025
Purchase           9,905               2.9233
Purchase           337,218             2.9025
Purchase           7,309               2.9025
Purchase           40,949              2.8817
Purchase           55,687              2.8702
Purchase           144,378             2.8224
Purchase           152,650             2.9025
Purchase           28,167              2.8820
Purchase           7,843               2.8225
Purchase           22,605              2.8224
Purchase           3,400               2.8744
Purchase           184,918             2.9194
Purchase           50,553              2.9072
Purchase           604                 Transfer
Purchase           200                 2.8750
Purchase           404,797             2.8845
Purchase           308,376             2.8834
Purchase           3,300               2.8983
Purchase           68,185              2.8225
Purchase           42,988              2.8866
Purchase           1,600               2.9025
Purchase           28,166              2.8715
Purchase           8,021               2.8225
Purchase           525                2.8820
Purchase           525                2.8715
Purchase           2,630               2.9025
Purchase           52,537              2.9233
Purchase           68,331              2.8977
Purchase           6,992               2.8322
Purchase           10,814              2.8225
Purchase           20,080              2.9233
Purchase           6,948               2.8225
Purchase           2,624               2.8225
Purchase           2,624               2.8225
Sale               6,666               2.9171
Sale               10,172              2.8593
Sale               105,053             2.9043
Sale               246,197             2.9080
Sale               37,680              2.8842
Sale               165,668             2.9061
Sale               3,300               2.8983
Sale               5,543               2.9102
Sale               53,901              2.9060
Sale               3,546               2.8739
Sale               41,810              2.8752
Sale               1,600               2.9025
Sale               55,620              2.8981
Sale               200                 2.8750
Sale               744                 2.9150
Sale               2,682               2.9005
Sale               34,668              2.9002
Sale               4,782               2.8400
Sale               1,299               2.8547
Sale               26,125              2.8225
Sale               464                 2.8739
Sale               463                 2.8547
Sale               18,141              2.8774
Sale               5,777               2.8739
Sale               68,185              2.8409
Sale               5,776               2.8547
Sale               1,300               2.8739
Sale               63,301              2.8225
Sale               3,038               2.8547
Sale               3,546               2.8547
Sale               990                 2.8739
Sale               989                 2.8547
Sale               91,182              2.9025
Sale               1,320               2.8547
Sale               1,321               2.8739
Sale               1,200               2.8739
Sale               1,199               2.8547
Sale               92,301              2.8225
Sale               40,887              2.8997
Sale               3,039               2.8739

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          30467         2.8225
CFD            Long          9216          2.8444
CFD            Long          10172         2.8593
CFD            Long          200           2.875
CFD            Long          41810         2.8751
CFD            Long          37680         2.8841
CFD            Long          21696         2.8931
CFD            Long          29568         2.8932
CFD            Long          55620         2.898
CFD            Long          3300          2.8982
CFD            Long          40887         2.8996
CFD            Long          34668         2.9002
CFD            Long          64311         2.9025
CFD            Long          105053        2.9043
CFD            Long          53901         2.9059
CFD            Long          165668        2.9061
CFD            Long          246197        2.9079
CFD            Long          5543          2.9101
CFD            Long          6666          2.917
CFD            Long          41071         2.9213
CFD            Short         6992          2.8321
CFD            Short         3400          2.8744
CFD            Short         200           2.875
CFD            Short         40949         2.8816
CFD            Short         308376        2.8834
CFD            Short         404797        2.8845
CFD            Short         33018         2.8853
CFD            Short         42988         2.8865
CFD            Short         3300          2.8982
CFD            Short         50553         2.9071
CFD            Short         35313         2.9093
CFD            Short         184918        2.9193
CFD            Short         81            2.9627

(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                         16 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