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               15 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     228,539,551     6.16%      4,132,347     0.11%
securities
(2) Derivatives   21,489,498     0.58%      3,430,424     0.09%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            250,029,049     6.74%      7,562,771     0.20%

(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 Securities  Price per unit
                                       (GBP)
Purchase         14,475                3.2201
Purchase         34,735                3.1337
Purchase         96,275                3.1411
Purchase         16,556                3.2059
Purchase         8,368                 3.1329
Purchase         6,270                 3.1358
Purchase         33,809                3.1349
Purchase         164,345               3.1269
Purchase         68,672                3.2200
Purchase         300                   3.1650
Purchase         64,100                3.1660
Purchase         1,656                 3.1925
Purchase         436,152               3.1301
Purchase         14,440                3.1525
Purchase         300                   3.1200
Purchase         38,083                3.1618
Purchase         131,435               3.1507
Purchase         25,755                3.2200
Sale             1,386                 Transfer
Sale             300                   3.1200
Sale             51,162                3.1863
Sale             267                   Transfer
Sale             57,983                3.1863
Sale             113,302               3.1994
Sale             300                   3.1650
Sale             5,812                 3.1870
Sale             116,994               3.1582
Sale             27,105                3.2230
Sale             169,496               3.1267
Sale             6,126                 3.2195
Sale             3,500                 3.2250
Sale             10,190                3.1108
Sale             21,489                3.2152
Sale             2,736                 Transfer
Sale             11,574                3.1772
Sale             61,845                3.2200
Sale             16,022                3.2200
Sale             13,812                3.2200
Sale             9,733                 3.2200
Sale             8,391                 3.2200
Sale             17,033                3.2250
Sale             1,800                 3.2250
Sale             712                   3.2250
Sale             8,982                 3.2250
Sale             891                   3.2250
Sale             810                   3.2250
Sale             5,500                 3.2078
Sale             7,906                 3.1638
Sale             2,230                 3.2250
Sale             22,243                3.1665
Sale             2,000                 3.2250
Sale             58,116                3.2200
Sale             891                   3.2250
Sale             1,500                 3.2250
Sale             2,250                 3.2250
Sale             2,000                 3.2250
Sale             2,800                 3.2250
Sale             3,100                 3.2250
Sale             2,500                 3.2250
Sale             3,000                 3.2250
Sale             5,972                 3.1454
Sale             38,460                3.1351
Sale             3,750                 3.1278

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          300           3.12
CFD            Long          169496        3.1266
CFD            Long          38460         3.135
CFD            Long          114579        3.157
CFD            Long          116994        3.1581
CFD            Long          7906          3.1637
CFD            Long          353050        3.1647
CFD            Long          300           3.165
CFD            Long          22243         3.1664
CFD            Long          11574         3.1771
CFD            Long          5812          3.187
CFD            Long          113302        3.1994
CFD            Long          21489         3.2152
CFD            Long          6126          3.2195
CFD            Long          27105         3.2229
CFD            Short         300           3.12
CFD            Short         164345        3.1269
CFD            Short         436152        3.13
CFD            Short         34735         3.1336
CFD            Short         33809         3.1348
CFD            Short         6270          3.1357
CFD            Short         96275         3.141
CFD            Short         113894        3.1447
CFD            Short         38083         3.1617
CFD            Short         300           3.165
CFD            Short         17541         3.1892
CFD            Short         14475         3.2201

NB: The below transactions which were previously disclosed have been cancelled
Deal Date      Long/Short        Number of Securities       Price per unit (GBP)
15/09/2008     Long              114,579                    3.157

(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)                 NO


Date of disclosure                         16 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)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk