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               06 November 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     237,432,171     6.39%      1,943,438     0.05%
securities
(2) Derivatives   16,941,332     0.46%        900,933     0.02%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            255,243,488     6.87%      2,844,371     0.08%

(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           152,592             3.1250
Purchase           2,950               3.1250
Purchase           4,243               3.1823
Purchase           2,418               3.1250
Purchase           16,653              3.1250
Purchase           1,383               3.1250
Purchase           8,562               3.1360
Purchase           13,864              3.1250
Purchase           15,505              3.1250
Purchase           2,968               3.1250
Purchase           19,819              3.1838
Purchase           4,642               3.1306
Purchase           8,902               3.2202
Purchase           170,376             3.1942
Purchase           5,673               3.2100
Purchase           6,932               3.1250
Purchase           3,668               3.1250
Purchase           4,608               3.2298
Purchase           3,700               3.1450
Purchase           3,167               3.2350
Purchase           700                 3.2075
Purchase           27,991              3.2488
Purchase           90,791              3.1895
Purchase           2,620               3.1250
Purchase           3,469               3.1250
Purchase           6,938               3.1250
Purchase           3,469               3.1250
Purchase           13,100              3.2600
Purchase           349,372             3.1899
Sale               1,000               3.2300
Sale               1,000               3.2300
Sale               1,125               3.2300
Sale               1,000               3.2300
Sale               1,215               3.1305
Sale               800                 3.2300
Sale               963                 3.2300
Sale               1,200               3.2300
Sale               91,276              3.1934
Sale               1,000               3.2300
Sale               18,231              3.1906
Sale               2,000               3.2300
Sale               246,030             3.2076
Sale               3,167               3.2350
Sale               4,800               3.2424
Sale               2,740               3.2695
Sale               14,700              3.2424
Sale               132,408             3.1250
Sale               1,167,461           3.1748
Sale               17,308              3.1955
Sale               116,787             3.2219
Sale               822,687             3.1895
Sale               4,300               3.2424
Sale               700                 3.2075
Sale               826                 3.2300
Sale               875                 3.2300
Sale               1,647               3.2300
Sale               1,408               3.2300
Sale               2,250               3.2300
Sale               1,100               3.1630
Sale               1,468               3.2300
Sale               1,192               3.2300
Sale               1,051               3.2300
Sale               1,000               3.2300
Sale               810                 3.2300
Sale               23,275              3.1250
Sale               1,350               3.2300
Sale               1,125               3.2300
Sale               900                 3.1905
Sale               900                 3.1905
Sale               1,575               3.2300
Sale               1,350               3.2300
Sale               1,620               3.2300
Sale               3,000               3.1580
Sale               1,032               3.2300
Sale               1,516               3.2300
Sale               1,700               3.2300
Sale               3,420               3.1580
Sale               1,250               3.2300
Sale               8,742               3.1512

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          8742          3.1512
CFD            Long          3196          3.1748
CFD            Long          18231         3.1906
CFD            Long          91276         3.1934
CFD            Long          17308         3.1955
CFD            Long          700           3.2075
CFD            Long          242834        3.208
CFD            Long          116787        3.2219
CFD            Long          3167          3.235
CFD            Long          27991         3.2488
CFD            Long          2740          3.2695
CFD            Short         4642          3.1305
CFD            Short         3700          3.145
CFD            Short         223401        3.1712
CFD            Short         19819         3.1837
CFD            Short         90791         3.1894
CFD            Short         349372        3.1898
CFD            Short         170376        3.1942
CFD            Short         32773         3.195
CFD            Short         700           3.2075
CFD            Short         5673          3.2099
CFD            Short         79715         3.2174
CFD            Short         8902          3.2201
CFD            Short         3167          3.235

(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                         07 November 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