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 8 February
2007 that the following shares were required to meet the Matching element on the
Partnership Shares acquired by Deryk King on 8 February 2005. The shares were
allotted on 8 February 2007 and are held by the Administrator on behalf of Mr
King:

-0-
*T
                                                 Number                     Aggregate Shares held
                                                 of Matching                Beneficially (across all accounts
                                                 Shares allotted*           following allotment)
Persons Discharging Managerial Responsibility
Deryk King                                       123.6                      299,860.98239
*T

* The 'Number of Matching Shares allotted' were at a price of 371 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.