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 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     225,634,349      6.08%     8,187,929      0.22%
securities
(2) Derivatives   18,099,976      0.49%     3,121,422      0.08%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total            243,734,325      6.57%    11,309,351      0.30%

(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      98,353               3.0493
Purchase      44,649               3.0508
Purchase      70,381               3.0624
Purchase      2,626                3.0725
Purchase      23,134               3.0561
Purchase      21,850               3.0488
Purchase      281,020              2.9950
Purchase      245                  3.0005
Purchase      100                  3.0200
Purchase      405                  Transfer
Purchase      4,300                3.0449
Purchase      2,931                3.0600
Purchase      29,902               3.0450
Purchase      13,931               3.0450
Purchase      2,627                3.0600
Purchase      10,413               3.0600
Sale          108,007              3.0428
Sale          17,730               3.0450
Sale          41,456               3.0534
Sale          99,429               3.0497
Sale          100                  3.0200
Sale          12,316               3.0595
Sale          4,300                3.0449
Sale          40,978               3.0435
Sale          1,800                3.0359
Sale          1,200                3.0382
Sale          82,749               3.0346
Sale          245                  3.0345

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          100           3.02
CFD            Long          245           3.0345
CFD            Long          108007        3.0428
CFD            Long          40978         3.0435
CFD            Long          4300          3.0448
CFD            Long          17730         3.045
CFD            Long          99429         3.0497
CFD            Long          41456         3.0534
CFD            Long          12316         3.0595
CFD            Short         245           3.0004
CFD            Short         100           3.02
CFD            Short         26709         3.0347
CFD            Short         4300          3.0448
CFD            Short         21850         3.0487
CFD            Short         98353         3.0492
CFD            Short         44649         3.0508
CFD            Short         23134         3.0561
CFD            Short         85313         3.0594
CFD            Short         70381         3.0623

(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                         08 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