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               26 September 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     236,907,594     6.38%      2,885,355     0.08%
securities
(2) Derivatives   21,530,467     0.58%      2,693,973     0.07%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            259,308,046     6.99%      5,579,328     0.15%

(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           635                 3.2185
Purchase           119,914             3.2498
Purchase           30,570              3.2675
Purchase           206,024             3.2476
Purchase           110,841             3.2598
Purchase           45,877              3.2631
Purchase           1,614               Transfer
Purchase           89                  Transfer
Purchase           1,530               3.2755
Purchase           5,541               3.2539
Purchase           800                 3.2678
Purchase           405                 Transfer
Purchase           1,899               3.2675
Sale               800                 3.2678
Sale               55,377              3.2652
Sale               205,056             3.2439
Sale               14,861              3.2687
Sale               473                 3.2645
Sale               243                 3.2554
Sale               5,800               3.2661
Sale               7,743               3.2650
Sale               8,842               Transfer
Sale               67,432              3.2653
Sale               107,065             3.2533
Sale               15,262              3.2400
Sale               17,441              3.2675
Sale               3,690               3.2656
Sale               9,147               3.2560

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          205056        3.2438
CFD            Long          107065        3.2532
CFD            Long          9147          3.2559
CFD            Long          473           3.2645
CFD            Long          55377         3.2651
CFD            Long          67432         3.2653
CFD            Long          5800          3.2661
CFD            Long          800           3.2678
CFD            Long          14861         3.2687
CFD            Short         635           3.2184
CFD            Short         23593         3.2383
CFD            Short         291018        3.2476
CFD            Short         119914        3.2497
CFD            Short         5541          3.2539
CFD            Short         10153         3.2564
CFD            Short         4241          3.26
CFD            Short         100688        3.2601
CFD            Short         45877         3.2631
CFD            Short         800           3.2678
CFD            Short         1393          3.2693
CFD            Short         1530          3.2754

(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 September 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