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 November 2007 that:

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

-0-
*T
                                Number                   Aggregate Shares held
                                of Shares                Beneficially (across all accounts
Directors                       Acquired*                following acquisition)
Phil Bentley                    54                       623,667
Sam Laidlaw                     52                       341,912
Nick Luff                       54                       200,204
Jake Ulrich                     54                       861,178

Persons Discharging Managerial
 Responsibility
Grant Dawson                    54                       277,909
Catherine May                   54                       6,146
Anne Minto                      54                       195,647
Chris Weston                    54                       133,896
*T

* The 'Number of Shares Acquired' includes 36 Partnership shares (35 for those
Directors/PDMRs with a lower residual balance) acquired at 352.50 pence per
share and 18 Matching shares (17 for those Directors/PDMRs with a lower residual
balance) acquired at 351.58 pence per share. Both Partnership and Matching
elements are registered in the name of the Trustee.

(2) They had transferred 12,000 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 November's allocation of Matching shares. The
Directors listed above, together with some 5,215 other employees, are
participants in the SIP and are potentially interested in the remaining 809
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.