Director/PDMR Shareholding

Centrica PLC
                  

Purchase of ordinary shares of 6 14/81 pence in Centrica plc ('Shares' and the
'Company', respectively) by Directors of the Company under its Share Incentive
Plan ('SIP').

The SIP trustee, Hill Samuel ESOP Trustees Limited (the 'Trustee'), notified the
Company on 20 March 2007 that:

(1) The following Directors and other Persons Discharging Managerial
Responsibility for the Company acquired Shares under the SIP on 19 March 2007
held through the Trustee:

-0-
*T
                                Number       Aggregate Shares held
                                of Shares    Beneficially (across all accounts
Directors                       Acquired*    following acquisition)
Phil Bentley                    51           461,033
Sam Laidlaw                     51           200,258
Jake Ulrich                     51           719,494

Persons Discharging Managerial
 Responsibility
Grant Dawson                    51           219,668
Anne Minto                      51           116,079
Chris Weston                    51           75,993
*T

* The 'Number of Shares Acquired' includes 34 Partnership shares acquired at
368.50 pence per share and 17 Matching shares acquired at 360.50 pence per
share. Both Partnership and Matching elements are registered in the name of the
Trustee.

(2) They had transferred 4,967 ordinary shares of 6 14//81 pence each from
Lloyds TSB Registrars Corporate Nominee Limited AESOP1 (Allocated shares) to
Lloyds TSB Registrars Corporate Nominee Limited AESOP2 (Unallocated shares). The
transfer was made following the forfeiture of shares, under the rules of the
SIP, by participants who have left the group since the last purchase and the
shares had been used towards March's allocation of Matching shares. The
Directors listed above, together with some 5,427 other employees, are
participants in the SIP and are potentially interested in the remaining 680
shares held by Lloyds TSB Registrars Corporate Nominee Limited AESOP2 left
following the purchase.

The SIP operates as follows

    --  Each month the Trustee uses participants' contributions (which may not
        exceed £125 per participant per month) to purchase shares in the market.
        These shares are called 'Partnership Shares'.

    --  At the same time the Company allots to participants via the Trustee one
        'Matching Share' for every two partnership shares purchased that month
        (up to a maximum of 20 matching shares per month).

    --  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.