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               02 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     239,768,872     6.46%      3,051,766     0.08%
securities
(2) Derivatives   21,035,255     0.57%      2,919,202     0.08%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            261,674,112     7.05%      5,970,968     0.16%

(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           7,109               3.1672
Purchase           966                 Transfer
Purchase           68,405              3.2011
Purchase           190,261             3.1828
Purchase           513,153             3.1400
Purchase           5,700               3.1400
Purchase           53,239              3.1466
Purchase           700                 3.1953
Purchase           20,099              3.1535
Purchase           61,283              3.2064
Purchase           178,440             3.1621
Purchase           57,424              3.1672
Purchase           4,430               3.2100
Purchase           88,869              3.1854
Purchase           1,211               3.2100
Purchase           31,848              3.2081
Purchase           8,354               3.2048
Purchase           31,850              3.1876
Purchase           3,289               3.1988
Purchase           1,134               3.2099
Purchase           48,800              3.2036
Purchase           200                 3.1625
Sale               61,283              3.2100
Sale               1,950               Transfer
Sale               50,000              3.2100
Sale               46,563              3.2140
Sale               93,574              3.1996
Sale               74,868              3.1764
Sale               9,000               3.2090
Sale               220,481             3.1952
Sale               37,614              3.2100
Sale               82,342              3.1500
Sale               7,247               3.2100
Sale               712                 3.1425
Sale               5,270               3.1475
Sale               1,250               3.2000
Sale               810                 3.2000
Sale               828                 3.2000
Sale               30,958              3.1999
Sale               1,138               3.2100
Sale               183,493             3.1843
Sale               800                 3.1425
Sale               1,296               3.2050
Sale               1,795               3.2000
Sale               850                 3.2175
Sale               200                 3.1625
Sale               700                 3.1953
Sale               21,822              3.2011
Sale               2,817               3.2000

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          200           3.1625
CFD            Long          74868         3.1763
CFD            Long          183493        3.1842
CFD            Long          34398         3.1865
CFD            Long          220481        3.1951
CFD            Long          700           3.1952
CFD            Long          30958         3.1998
CFD            Long          51965         3.2002
CFD            Long          21822         3.2011
CFD            Long          59176         3.2071
CFD            Long          9000          3.209
CFD            Long          46563         3.2139
CFD            Short         5700          3.14
CFD            Short         53239         3.1465
CFD            Short         20099         3.1535
CFD            Short         178440        3.162
CFD            Short         200           3.1625
CFD            Short         46621         3.1648
CFD            Short         190261        3.1827
CFD            Short         31850         3.1876
CFD            Short         11776         3.1893
CFD            Short         700           3.1952
CFD            Short         68405         3.201
CFD            Short         48800         3.2036
CFD            Short         42248         3.2081
CFD            Short         21709         3.21

(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                         03 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