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 January 2008 that:

(1) The following Directors and other Persons Discharging Managerial
Responsibility for the Company acquired Shares under the SIP on 21 January 2008
held through the Trustee:

-0-
*T
                                 Number                    Aggregate Shares held
                                 of Shares                 Beneficially (across all accounts
Directors                        Acquired*                 following acquisition)
Phil Bentley                     58                        623,776
Sam Laidlaw                      57                        342,021
Nick Luff                        57                        200,312
Jake Ulrich                      58                        861,287

Persons Discharging Managerial
 Responsibility
Grant Dawson                     58                        278,018
Catherine May                    57                        6,254
Anne Minto                       58                        195,756
Chris Weston                     57                        134,004
*T

* The 'Number of Shares Acquired' includes 38 Partnership shares (39 Partnership
shares for Phil Bentley, Grant Dawson, Anne Minto and Jake Ulrich with a higher
residual balance) acquired at 328.00 pence per share and 19 Matching shares
acquired at 337.00 pence per share. Both Partnership and Matching elements are
registered in the name of the Trustee.

(2) They had transferred 10,000 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 January's allocation of Matching shares. The
Directors listed above, together with some 5,160 other employees, are
participants in the SIP and are potentially interested in the remaining 344
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.