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               07 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     237,255,415     6.39%      2,112,264     0.06%
securities
(2) Derivatives   16,992,852     0.46%      1,286,229     0.03%
(other than
options)
(3) Options and      869,985     0.02%              0     0.00%
agreements to
purchase/sell
Total            255,118,252     6.87%      3,398,493     0.09%

(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           38,052              3.2300
Purchase           4,376               3.2300
Purchase           4,700               3.1250
Purchase           9,215               3.2268
Purchase           2,967               3.2300
Purchase           153,999             3.1250
Purchase           6,912               3.2393
Purchase           6,604               3.2298
Purchase           35,409              3.1849
Purchase           113,474             3.1186
Purchase           48,141              3.1349
Purchase           600                 3.2075
Purchase           6,333               3.1137
Purchase           200                 3.1450
Purchase           1,100               3.1250
Purchase           6,932               3.2300
Purchase           4,430               3.2300
Purchase           35,032              3.2300
Purchase           286,427             3.2300
Purchase           116,635             3.1200
Purchase           127,841             3.1781
Purchase           119,974             3.1560
Sale               311                 Transfer
Sale               249,105             3.1756
Sale               55,366              3.1489
Sale               474                 3.2300
Sale               124,386             3.1596
Sale               600                 3.2075
Sale               37,214              3.2261
Sale               25,093              3.2261
Sale               85,387              3.2164
Sale               750                 3.1405
Sale               445                 3.1076
Sale               1,300               3.2105
Sale               286,427             3.2300
Sale               191,971             3.2300
Sale               65,108              3.2300
Sale               73,084              3.2300
Sale               13,258              3.2300
Sale               6,333               3.1137
Sale               1,188               3.1980
Sale               4,700               3.1250
Sale               418                 3.1405
Sale               1,650               3.1130
Sale               5,004               3.1827
Sale               14,447              3.1039
Sale               35,561              3.2244
Sale               23,978              3.2244
Sale               1,100               3.1250
Sale               1,251               3.1980

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          14447         3.1038
CFD            Long          6333          3.1136
CFD            Long          55366         3.1488
CFD            Long          124386        3.1596
CFD            Long          249105        3.1756
CFD            Long          5004          3.1826
CFD            Long          600           3.2075
CFD            Long          85387         3.2164
CFD            Short         15240         3.1063
CFD            Short         6333          3.1136
CFD            Short         113474        3.1185
CFD            Short         116635        3.1199
CFD            Short         153999        3.1249
CFD            Short         86671         3.1257
CFD            Short         48141         3.1349
CFD            Short         119974        3.156
CFD            Short         35409         3.1849
CFD            Short         112601        3.1877
CFD            Short         600           3.2075
CFD            Short         25035         3.2269
CFD            Short         6604          3.2297
CFD            Short         33688         3.2374

(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                         10 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