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               05 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     228,136,420      6.15%     8,872,727      0.24%
securities
(2) Derivatives   19,110,084      0.52%     3,198,219      0.09%
(other than
options)
(3) Options and            0      0.00%             0      0.00%
agreements to
purchase/sell
Total            247,246,504      6.67%    12,070,946      0.33%


(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      3,800                3.0043
Purchase      10,924               2.9950
Purchase      356                  Transfer
Purchase      9,284                2.9879
Purchase      228,612              2.9989
Purchase      22,580               3.0052
Purchase      11,000               3.0075
Purchase      105,393              2.9978
Purchase      77,877               3.0069
Purchase      648                  Transfer
Purchase      23,334               2.9955
Purchase      32,742               2.9950
Sale          160,608              2.9991
Sale          1,310                3.0000
Sale          815,254              3.0004
Sale          9,284                2.9946
Sale          11,000               3.0075
Sale          10,000               3.0280
Sale          51,168               3.0081
Sale          14,965               3.0020
Sale          1,125                2.9908
Sale          12,895               2.9992
Sale          5,346                2.9992
Sale          8,834                2.9992
Sale          675                  3.0057
Sale          675                  3.0057
Sale          1,003                2.9991
Sale          11,000               2.9950
Sale          8,681                2.9991
Sale          4,500                3.0010
Sale          4,696                2.9991
Sale          6,778                2.9991
Sale          4,330                2.9991
Sale          4,689                2.9991
Sale          3,057                2.9991
Sale          9,706                2.9991
Sale          48,093               2.9991
Sale          901                  2.9991

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          9284          2.9945
CFD            Long          815254        3.0004
CFD            Long          14965         3.002
CFD            Long          51168         3.0081
CFD            Long          10000         3.028
CFD            Short         9284          2.9879
CFD            Short         102360        2.9927
CFD            Short         5207          2.9945
CFD            Short         23334         2.9954
CFD            Short         11562         2.9977
CFD            Short         105393        2.9978
CFD            Short         228612        2.9988
CFD            Short         51599         3.0036
CFD            Short         3800          3.0042
CFD            Short         22580         3.0051
CFD            Short         44773         3.0053
CFD            Short         77877         3.0069

(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                         06 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