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               29 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     238,523,127     6.42%      1,735,623     0.05%
securities
(2) Derivatives   17,935,000     0.48%      2,512,302     0.07%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            257,328,112     6.93%      4,247,925     0.11%

(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           8,563               2.9225
Purchase           10,995              3.0300
Purchase           98,880              3.0300
Purchase           79,983              3.0300
Purchase           257,489             2.9901
Purchase           52,439              2.9458
Purchase           1,900               2.9795
Purchase           74,151              2.9918
Purchase           8,563               3.0066
Purchase           82,899              2.9886
Purchase           13,105              3.0200
Purchase           3,940               3.0300
Purchase           19,254              3.0300
Purchase           569,227             2.9914
Purchase           1,500               2.9225
Purchase           5,377               2.9887
Purchase           136,506             3.0000
Purchase           102,136             3.0300
Purchase           8,846               2.9888
Purchase           1,700               2.9225
Purchase           12,927              2.9949
Purchase           1,049               3.0300
Purchase           211,718             2.9806
Purchase           751                 Transfer
Purchase           1,612               3.0300
Purchase           2,876               2.9914
Purchase           417,443             2.9991
Purchase           29,322              3.0300
Purchase           445,759             2.9870
Sale               7,500               2.9700
Sale               550                 2.9930
Sale               1,550               2.9930
Sale               79,983              3.0300
Sale               1,260               2.9700
Sale               400                 3.0328
Sale               10,970              3.0025
Sale               1,662,259           2.9429
Sale               61,695              3.0273
Sale               24,013              3.0097
Sale               1,500               2.9225
Sale               1,700               2.9225
Sale               5,500               2.9400
Sale               175,000             3.0300
Sale               1,900               2.9795
Sale               59,411              2.9781
Sale               2,591               3.0300
Sale               73,003              2.9932
Sale               751                 Transfer
Sale               9,016               3.0248
Sale               113,200             2.9931
Sale               10                  Transfer
Sale               56,574              3.0229
Sale               80,673              2.9943
Sale               2,046               2.9771

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2046          2.977
CFD            Long          59411         2.978
CFD            Long          1900          2.9794
CFD            Long          73003         2.9931
CFD            Long          80673         2.9943
CFD            Long          10970         3.0024
CFD            Long          74865         3.0079
CFD            Long          24013         3.0097
CFD            Long          56574         3.0228
CFD            Long          9016          3.0247
CFD            Long          61695         3.0273
CFD            Short         1900          2.9794
CFD            Short         17409         2.9799
CFD            Short         211718        2.9805
CFD            Short         428350        2.9872
CFD            Short         82899         2.9885
CFD            Short         8846          2.9887
CFD            Short         257489        2.99
CFD            Short         572103        2.9914
CFD            Short         74151         2.9917
CFD            Short         145338        2.9937
CFD            Short         12927         2.9948
CFD            Short         417443        2.999
CFD            Short         136506        3

(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                         30 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