Director/PDMR Shareholding

Centrica PLC
                  

Purchase 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 15 March
2007 of the following transactions that had been completed on behalf of the
following PDMR of the Company under the NAESPP:

    --  that they had acquired Partnership Shares on 13 March 2007; and

    --  that shares were required to meet the Matching element on the
        Partnership Shares acquired on 15 March 2005. The shares were allotted
        on 15 March 2007 and are held by the Administrator on behalf of the
        PDMR:

-0-
*T
                       Number of           Number of           Aggregate Shares held
                       Partnership         Matching Shares     beneficially (across all
                       Shares acquired*    allotted**          accounts following
                                                               acquisition and allotment)
Persons Discharging
Managerial
Responsibility
Deryk King             188.07442           131.79346           300,333.46732
*T

* The 'Number of Partnership Shares acquired' were purchased at 365 pence.

** The 'Number of Matching Shares allotted' were at a price of 374 pence per
share.

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.