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               27 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     227,039,157     6.12%      6,086,833     0.16%
securities
(2) Derivatives   17,363,460     0.47%      3,768,282     0.10%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            244,402,617     6.59%      9,855,115     0.27%

(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      117,598              3.1810
Purchase      26,748               3.1939
Purchase      486                  Transfer
Purchase      25,690               3.1881
Purchase      34,400               3.1874
Purchase      2,001                3.1661
Purchase      39,200               3.1874
Purchase      181,200              3.1771
Purchase      18,060               3.1790
Purchase      2,940                3.1732
Purchase      17,002               3.1905
Purchase      25,690               3.1882
Purchase      7,542                3.1905
Purchase      109,352              3.1425
Purchase      350,950              3.1909
Purchase      3,377                3.1900
Purchase      79,891               3.1425
Purchase      3,472                3.1900
Purchase      3,224                3.1900
Sale          137,975              3.1808
Sale          12,197               3.1903
Sale          32,100               3.1460
Sale          1,693                3.1458
Sale          93,284               3.1779
Sale          65,833               3.1870
Sale          29,008               3.1867
Sale          2,001                3.1661
Sale          1,170                3.1933
Sale          1,000                3.1933
Sale          1,170                3.1933
Sale          6,857                3.1880
Sale          48,272               3.1900
Sale          7,600                3.1933
Sale          1,750                3.1908
Sale          2,940                3.1820
Sale          2,700                3.1933
Sale          2,250                3.1933
Sale          1,350                3.1458
Sale          15,000               3.1896
Sale          25,690               3.1882
Sale          428                  3.0809

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          2001          3.1661
CFD            Long          93284         3.1778
CFD            Long          137975        3.1808
CFD            Long          49070         3.1817
CFD            Long          2940          3.1819
CFD            Long          29008         3.1866
CFD            Long          65833         3.1869
CFD            Long          6857          3.1879
CFD            Long          15000         3.1896
CFD            Long          12197         3.1903
CFD            Short         2001          3.1661
CFD            Short         2940          3.1732
CFD            Short         181200        3.177
CFD            Short         18060         3.179
CFD            Short         117598        3.1809
CFD            Short         25690         3.1881
CFD            Short         17002         3.1904
CFD            Short         7542          3.1905
CFD            Short         350950        3.1908
CFD            Short         26748         3.1939

(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                         28 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