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               22 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     240,032,172     6.46%      2,393,171     0.06%
securities
(2) Derivatives   20,157,719     0.54%      1,332,540     0.04%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,059,876     7.03%      3,725,711     0.10%

(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           445                 Transfer
Purchase           89                  Transfer
Purchase           3,185               3.0510
Purchase           89                  Transfer
Purchase           122,469             3.0798
Purchase           220,391             3.0581
Purchase           116,802             3.0577
Purchase           600                 3.1050
Purchase           2,000               3.0902
Purchase           1,600               3.1450
Purchase           39,775              3.0626
Purchase           400                 3.0875
Purchase           102,136             3.0425
Purchase           605,902             3.0874
Purchase           34,405              3.0425
Purchase           22,004              3.0425
Purchase           1,662,259           3.0700
Purchase           74,625              3.0700
Purchase           3,053               3.0425
Sale               89                  Transfer
Sale               7,737               3.0563
Sale               43,800              3.0777
Sale               600                 3.1050
Sale               20,846              3.0678
Sale               35,639              3.0728
Sale               45,942              3.0688
Sale               2,142               Transfer
Sale               400                 3.0875
Sale               244,485             3.1135
Sale               132,965             3.0770
Sale               7,903               3.1012
Sale               89                  Transfer
Sale               445                 Transfer
Sale               1,000               3.0855
Sale               1,000               3.0855
Sale               1,500               3.0530
Sale               500                 3.0530
Sale               500                 3.0530
Sale               67,493              3.0700
Sale               18,518              3.1107


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          7737          3.0563
CFD            Long          20846         3.0677
CFD            Long          45942         3.0687
CFD            Long          35639         3.0728
CFD            Long          132965        3.0769
CFD            Long          43800         3.0777
CFD            Long          400           3.0875
CFD            Long          600           3.105
CFD            Long          244485        3.1135
CFD            Short         576417        3.0416
CFD            Short         3185          3.0509
CFD            Short         116802        3.0577
CFD            Short         220391        3.058
CFD            Short         39775         3.0625
CFD            Short         122469        3.0797
CFD            Short         3082          3.0845
CFD            Short         137480        3.0846
CFD            Short         605902        3.0874
CFD            Short         400           3.0875
CFD            Short         2000          3.0901
CFD            Short         600           3.105
CFD            Short         1600          3.145


(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                         23 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