Director/PDMR Shareholding

Centrica PLC
                  

Allotment of ordinary shares of 6 14/81 pence in Centrica plc ('Shares' and the
'Company', respectively) by a Person Discharging Managerial Responsibility
(PDMR) of the Company under its North American Employee Share Purchase Plan
('NAESPP').

The Bank of New York, (the 'Administrator'), notified the Company on 5th August
2008 that the following shares were acquired/ allotted and held on behalf of the
following PDMR of the Company under the NAESPP.

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                  Number of Matching*       Number of Matching* Shares Aggregate Shares held
                   Shares allotted at 294p/  allotted at 311p/ share    beneficially (across all
                   share on 8 June 2008      on 13 July 2008            accounts following
                                                                        allotment)

Persons
 Discharging
 Managerial
 Responsibility
Deryk King                              117                        119 319,541
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* The Matching element relates to the Partnership Shares acquired by Deryk King
on 8 June 2006 and on 13 July 2006.

The NAESPP operates as follows

    --  Each month the Administrator uses participants' contributions (which are
        from 1% to 5% of base salary but may not exceed $10,000 per participant
        per year) to purchase shares in the market. These shares are called
        'Partnership Shares'. Participants may hold both fractional and whole
        Partnership Shares.

    --  For every two Partnership Shares the participants still own after two
        years, the Company awards one free share. These are called 'Matching
        Shares'.

    --  Participants may change their monthly savings rate whenever they wish.
        However, Directors and others bound by the Company's Securities Dealing
        Code (the 'Code') may not make such a change during a close period or
        when otherwise prohibited from dealing by the Code.

    --  The NAESPP is only open to employees of the Company based in Canada and
        the United States. No other Directors or PDMRs of the Company are
        participants in the NAESPP.

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Julia Foo
Centrica plc
01753 494016
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