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 and Persons Discharging
Managerial Responsibility (PDMRs) under its Share Incentive Plan ('SIP').

The SIP trustee, Equiniti Share Plan Trustees Limited (the 'Trustee'), notified
the Company on 20 February 2008 that:

(1) The following Directors and other Persons Discharging Managerial
Responsibility for the Company acquired Shares under the SIP on 19 February 2008
held through the Trustee:

-0-
*T
                                Number                   Aggregate Shares held
                                of Shares                Beneficially (across all accounts
Directors                       Acquired*                following acquisition)
Phil Bentley                    55                       623,831
Sam Laidlaw                     57                       342,078
Nick Luff                       57                       200,369
Jake Ulrich                     55                       861,342

Persons Discharging Managerial
 Responsibility
Grant Dawson                    55                       278,073
Catherine May                   57                       6,311
Anne Minto                      55                       195,811
Chris Weston                    57                       134,061
*T

* The 'Number of Shares Acquired' includes 37 Partnership shares (38 Partnership
shares for Sam Laidlaw, Nick Luff, Catherine May and Christopher Weston with a
higher residual balance) acquired at 330.44 pence per share and 18 Matching
shares (19 Matching shares for Sam Laidlaw, Nick Luff, Catherine May and
Christopher Weston with a higher residual balance) acquired at 332.92 pence per
share. Both Partnership and Matching elements are registered in the name of the
Trustee.

(2) They had transferred 9,000 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 February's allocation of Matching shares. The Directors listed
above, together with some 5,185 other employees, are participants in the SIP and
are potentially interested in the remaining 221 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.