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 19 January 2006 that:

(1) The following Directors and other Persons Discharging Managerial
Responsibility for the Company acquired Shares under the SIP on 19 January 2006
held through the Trustee:
                                               Number    Aggregate
                                                          Shares held
                                               of Shares Beneficially
                                                          (across all
                                                          accounts
Directors                                      Acquired* following
                                                          acquisition)
Phil Bentley                                   68        342,857
Mark Clare                                     68        804,206
Sir Roy Gardner                                68        2,175,960
Jake Ulrich                                    68        693,939

Persons Discharging Managerial Responsibility
Grant Dawson                                   68        316,196
Anne Minto                                     68        43,308
Chris Weston                                   52        2,212

* The 'Number of Shares Acquired' includes 48 Partnership shares (except for
Chris Weston which includes 35 Partnership shares) acquired at 259.50 pence and
20 Matching shares (except for Chris Weston which includes 17 Matching shares)
acquired at 253.58 pence. Both Partnership and Matching elements are registered
in the name of the Trustee.

(2) They had transferred 7,374 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 5,262 other employees, are potential participants in
the Plan and are to be treated as interested in the remaining 783 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.