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 September 2007 that:

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

-0-
*T
                                Number                   Aggregate Shares held
                                of Shares                Beneficially (across all accounts
Directors                       Acquired*                following acquisition)
Phil Bentley                    49                       613,137
Sam Laidlaw                     49                       341,803
Nick Luff                       48                       200,099
Jake Ulrich                     48                       861,032

Persons Discharging Managerial
 Responsibility
Grant Dawson                    49                       277,763
Catherine May                   48                       6,041
Anne Minto                      49                       195,507
Chris Weston                    48                       133,791
*T

* The 'Number of Shares Acquired' includes 32 Partnership shares (33 for those
PDMRs with a higher residual balance) acquired at 382.50 pence per share and 16
Matching shares acquired at 375.25 pence per share. Both Partnership and
Matching elements are registered in the name of the Trustee.

(2) They had transferred 15,092 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 September's allocation of Matching shares. The
Directors listed above, together with some 5,190 other employees, are
participants in the SIP and are potentially interested in the remaining 975
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.