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               14 August 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     224,367,264     6.05%      8,203,436     0.22%
securities
(2) Derivatives   18,672,497     0.50%      2,521,724     0.07%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total           243,039,761      6.55%     10,725,160     0.29%

(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      445                  Transfer
Purchase      8,203                3.1263
Purchase      11,990               3.0998
Purchase      33,473               3.0850
Purchase      2,000                3.1218
Purchase      143,025              3.0850
Purchase      101,204              3.1311
Purchase      250                  Transfer
Purchase      6,471                3.1263
Purchase      14,014               3.0890
Purchase      1,528                3.1263
Purchase      58,321               3.0897
Purchase      188,951              3.1082
Sale          114,623              3.0938
Sale          103,746              3.0882
Sale          11,230               3.0893
Sale          400                  3.1009
Sale          67,639               3.1411
Sale          2,000                3.1218
Sale          250                  Transfer
Sale          308                  3.1410
Sale          158,713              3.1086
Sale          1,275                3.1033
Sale          3,237                3.1083
Sale          10,548               3.1009
Sale          7,988                3.1450
Sale          23,590               3.1083
Sale          23,823               3.1083
Sale          3,165                3.1008
Sale          16,334               3.1083
Sale          800                  3.0911
Sale          2,322                3.1115
Sale          1,080                3.1183
Sale          1,115                3.1033
Sale          972                  3.0860
Sale          1,270                3.1033
Sale          3,182                3.1083
Sale          700                  3.0911
Sale          741                  3.1285
Sale          1,247                3.0911


(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          302308        3.085
CFD            Long          103746        3.0881
CFD            Long          11230         3.0892
CFD            Long          114623        3.0938
CFD            Long          158713        3.1086
CFD            Long          2322          3.1115
CFD            Long          120285        3.1137
CFD            Long          2000          3.1217
CFD            Long          67639         3.141
CFD            Short         302308        3.085
CFD            Short         14014         3.089
CFD            Short         58321         3.0896
CFD            Short         11990         3.0998
CFD            Short         40680         3.1064
CFD            Short         188951        3.1082
CFD            Short         2000          3.1217
CFD            Short         101204        3.131


(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                         15 August 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