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 22 October 2007 that:

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

-0-
*T
                                Number                   Aggregate Shares held
                                of Shares                Beneficially (across all accounts
Directors                       Acquired*                following acquisition)
Phil Bentley                    49                       618,347
Sam Laidlaw                     51                       341,854
Nick Luff                       51                       200,150
Jake Ulrich                     51                       861,083

Persons Discharging Managerial
 Responsibility
Grant Dawson                    49                       277,812
Catherine May                   51                       6,092
Anne Minto                      49                       195,556
Chris Weston                    51                       133,842
*T

* The 'Number of Shares Acquired' includes 33 Partnership shares (34 for those
Directors/PDMRs with a higher residual balance) acquired at 372 pence per share
and 16 Matching shares (17 for those Directors/PDMRs with a higher residual
balance) acquired at 370.5 pence per share. Both Partnership and Matching
elements are registered in the name of the Trustee.

(2) They had transferred 9,282 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 October's allocation of Matching shares. The Directors listed
above, together with some 5,250 other employees, are participants in the SIP and
are potentially interested in the remaining 257 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.