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               20 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     237,928,427     6.41%      2,967,812     0.08%
securities
(2) Derivatives   21,593,633     0.58%        971,196     0.03%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            260,392,045     7.01%      3,939,008     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           1,000               3.0100
Purchase           4,654               3.0075
Purchase           54,503              3.0668
Purchase           63,350              3.1275
Purchase           15,888              2.8360
Purchase           4,770               3.1183
Purchase           126,253             3.1149
Purchase           63,963              2.9950
Purchase           1,600               3.0225
Purchase           7,459               2.9826
Purchase           128,320             3.1275
Purchase           107,343             3.0816
Purchase           13,697              3.1275
Purchase           21,613              2.8360
Purchase           53,656              2.8360
Purchase           35,912              3.0984
Purchase           18,518              2.9826
Purchase           100                 3.1675
Purchase           51,272              2.9891
Purchase           18,940              2.9950
Purchase           5,484               2.9826
Purchase           9,804               3.1275
Purchase           2,931               3.0600
Purchase           25,766              2.9950
Purchase           6,942               3.1275
Purchase           3,471               3.1275
Purchase           34,112              3.0600
Purchase           5,266               3.1166
Purchase           9,156               3.1275
Purchase           39,676              3.1275
Purchase           41,003              3.0227
Purchase           2,326               3.0198
Purchase           113,558             3.0946
Purchase           5,604               3.0700
Purchase           279,895             3.1275
Purchase           20,653              2.9891
Purchase           15,182              2.9891
Purchase           26,631              2.9867
Purchase           4,856               3.0700
Purchase           49,829              2.9800
Sale               1,009               3.0369
Sale               73,054              3.0757
Sale               100                 3.1675
Sale               1,600               3.0225
Sale               463,815             3.0198
Sale               38,356              3.0953
Sale               69,640              3.0769
Sale               6,370               3.1406
Sale               34,200              3.1523
Sale               376,257             3.0860
Sale               2,931               3.0600
Sale               32,639              3.1747
Sale               29,300              3.0098
Sale               6,531               2.9988
Sale               329                 3.0305
Sale               1,721               3.0930
Sale               13,061              3.0795
Sale               55,397              3.0769
Sale               50,702              3.0769
Sale               2,475               3.0930
Sale               18,551              2.9988
Sale               7,605               3.0769
Sale               19,980              2.9988
Sale               27,689              2.9988
Sale               8,191               2.9988
Sale               11,173              2.9988
Sale               24,753              3.0769
Sale               7,407               2.9988
Sale               12,343              2.9988
Sale               2,621               3.0769
Sale               800                 3.1670
Sale               169,402             3.1275
Sale               445                 Transfer
Sale               7,148               2.9988
Sale               153,883             3.0769
Sale               43,298              3.0769
Sale               2,000               3.0130
Sale               11,544              3.0769
Sale               917                 3.0769
Sale               1,398               3.0769
Sale               2,850               3.0769
Sale               5,604               3.0769
Sale               3,887               3.0769
Sale               1,000               2.9855
Sale               101,421             3.0820
Sale               8,344               3.0769

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          13915         3.0155
CFD            Long          463815        3.0198
CFD            Long          1600          3.0225
CFD            Long          101421        3.082
CFD            Long          376257        3.0859
CFD            Long          59139         3.0898
CFD            Long          38356         3.0952
CFD            Long          76226         3.1275
CFD            Long          6370          3.1406
CFD            Long          34200         3.1523
CFD            Long          800           3.167
CFD            Long          100           3.1675
CFD            Long          32639         3.1746
CFD            Short         15554         2.9951
CFD            Short         1000          3.01
CFD            Short         1600          3.0225
CFD            Short         25449         3.0394
CFD            Short         54503         3.0668
CFD            Short         445679        3.0786
CFD            Short         107343        3.0816
CFD            Short         113558        3.0945
CFD            Short         35912         3.0984
CFD            Short         126253        3.1149
CFD            Short         4770          3.1182
CFD            Short         100           3.1675

(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                         21 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