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               12 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     232,433,703     6.26%      4,644,106     0.13%
securities
(2) Derivatives   20,931,908     0.56%      3,010,089     0.08%
(other than
options)
(3) Options and            0     0.00%              0     0.00%
agreements to
purchase/sell
Total            253,365,611     6.83%      7,654,195     0.21%

(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         146,993               3.1677
Purchase         60,438                3.1712
Purchase         500                   3.1830
Purchase         3,538                 3.1775
Purchase         300                   3.1575
Purchase         81                    Transfer
Purchase         162                   Transfer
Purchase         86,100                3.1620
Purchase         5,972                 Transfer
Purchase         288,925               3.1676
Purchase         15,402                3.1600
Purchase         10,190                Transfer
Purchase         27,840                3.1644
Purchase         3,238                 3.1604
Purchase         139,400               3.1622
Purchase         301                   Transfer
Purchase         120,922               3.1648
Purchase         115,995               3.1658
Purchase         16,343                3.1525
Purchase         16,714                3.1775
Purchase         32,037                3.1782
Purchase         4,896                 3.1775
Purchase         425,751               3.1712
Purchase         400                   3.1625
Purchase         81                    Transfer
Purchase         7,106                 3.1630
Purchase         29,629                3.1606
Sale             1,540                 3.1649
Sale             81                    Transfer
Sale             15,626                3.1775
Sale             1,150                 3.1778
Sale             29,629                3.1770
Sale             1,150                 3.1778
Sale             301                   Transfer
Sale             81                    3.1654
Sale             139,685               3.1687
Sale             29,766                3.1788
Sale             3,300                 3.1600
Sale             81                    Transfer
Sale             45,360                3.1678
Sale             18,012                3.1590
Sale             162                   3.1654
Sale             12,956                3.1691
Sale             400                   3.1625
Sale             286,351               3.1712
Sale             3,238                 3.1995
Sale             162                   Transfer
Sale             300                   3.1575

(b)  Derivatives transactions (other than options)
Product name,  Long/Short    Number of     Price per
(e.g. CFD)     (Note 6)      Securities    unit (GBP)
CFD            Long          300           3.1575
CFD            Long          18012         3.1589
CFD            Long          400           3.1625
CFD            Long          35701         3.1644
CFD            Long          1540          3.1648
CFD            Long          45360         3.1677
CFD            Long          16289         3.1684
CFD            Long          230818        3.1685
CFD            Long          139685        3.1687
CFD            Long          12956         3.1691
CFD            Long          590706        3.1712
CFD            Long          29629         3.177
CFD            Long          29766         3.1787
CFD            Long          3238          3.1995
CFD            Short         300           3.1575
CFD            Short         3238          3.1604
CFD            Short         29629         3.1605
CFD            Short         86100         3.162
CFD            Short         139400        3.1622
CFD            Short         400           3.1625
CFD            Short         7106          3.1629
CFD            Short         120922        3.1648
CFD            Short         4552          3.1651
CFD            Short         115995        3.1658
CFD            Short         284373        3.1676
CFD            Short         146993        3.1677
CFD            Short         790544        3.1712
CFD            Short         500           3.1829

(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 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