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               18 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     231,980,060     6.25%      3,781,381     0.10%
securities
(2) Derivatives   21,433,894     0.58%      2,339,123     0.06%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            253,413,954     6.83%      6,120,504     0.16%

(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         248,321               3.1999
Purchase         2,201                 3.1985
Purchase         15,846                3.1998
Purchase         2,572                 3.2101
Purchase         23,699                3.1998
Purchase         3,847                 3.2100
Purchase         3,287                 3.1985
Purchase         16,655                3.1998
Purchase         7,339                 3.2100
Purchase         2,705                 3.2101
Purchase         3,900                 3.2229
Purchase         7,101                 3.1985
Purchase         51,335                3.1999
Purchase         34,763                3.1999
Purchase         40,312                3.2100
Purchase         2,311                 3.1985
Purchase         114,041               3.1985
Purchase         133,764               3.2100
Purchase         824,003               3.1999
Purchase         11,486                3.1950
Purchase         10,217                3.2088
Purchase         202,506               3.2035
Purchase         258,427               3.2207
Purchase         73,673                3.2164
Purchase         214,206               3.2135
Purchase         10,345                3.1780
Purchase         4,661                 3.2032
Purchase         550,818               3.2070
Purchase         180,876               3.2274
Purchase         34,370                3.1985
Purchase         599                   3.1985
Purchase         45,889                3.1999
Purchase         4,817                 3.1985
Purchase         142,986               3.1950
Purchase         6,260                 3.1985
Purchase         6,349                 3.1985
Purchase         45,198                3.1999
Purchase         6,940                 3.1950
Purchase         7,452                 3.2100
Purchase         954                   3.1985
Purchase         8,333                 3.2100
Purchase         696                   3.2101
Purchase         6,870                 3.1997
Purchase         4,309                 3.1997
Purchase         8,357                 3.1950
Purchase         44,692                3.1999
Purchase         7,257                 3.2100
Purchase         6,192                 3.1985
Purchase         7,869                 3.2218
Purchase         3,324                 3.1985
Purchase         23,981                3.1998
Purchase         3,894                 3.2100
Purchase         5,643                 3.2100
Purchase         1,117                 3.2101
Sale             3,445                 Transfer
Sale             3,900                 3.2229
Sale             112,061               3.2009
Sale             10,345                3.1945
Sale             73,361                3.2278
Sale             445                   Transfer
Sale             60,560                3.2274
Sale             1,400                 3.2153
Sale             113,568               3.2275
Sale             4,661                 3.2945
Sale             7,200                 3.2450
Sale             62,024                3.1950
Sale             9,679                 3.1950
Sale             1,383                 3.1950
Sale             1,800                 3.2028
Sale             459                   3.2153
Sale             534                   3.1878
Sale             2,668                 3.2003
Sale             20,502                3.2127
Sale             400                   3.2000
Sale             7,895                 3.2127
Sale             1,017                 3.2028
Sale             189,563               3.2262
Sale             8,214                 3.2127
Sale             3,005                 3.2000
Sale             735                   3.2000
Sale             7,324                 3.2127

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          10345         3.1945
CFD            Long          112061        3.2008
CFD            Long          115557        3.2066
CFD            Long          3900          3.2229
CFD            Long          189563        3.2261
CFD            Long          60560         3.2273
CFD            Long          113568        3.2275
CFD            Long          73361         3.2277
CFD            Long          7200          3.245
CFD            Long          4661          3.2945
CFD            Short         10345         3.1779
CFD            Short         4661          3.2031
CFD            Short         202506        3.2035
CFD            Short         550818        3.207
CFD            Short         10217         3.2087
CFD            Short         162629        3.2123
CFD            Short         73673         3.2163
CFD            Short         4560          3.2164
CFD            Short         51577         3.217
CFD            Short         258427        3.2207
CFD            Short         3900          3.2229
CFD            Short         180876        3.2274
CFD            Short         63541         3.2285

(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                         19 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