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 April 2007 that:

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

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*T
                                  Number                    Aggregate Shares held
                                  of Shares                 Beneficially (across all accounts
 Directors                        Acquired (a)              following acquisition)
 Phil Bentley                     48                        601,227
 Sam Laidlaw                      48                        266,552
 Jake Ulrich                      48                        860,699

 Persons Discharging Managerial
  Responsibility
 Grant Dawson                     48                        277,427
 Anne Minto                       48                        195,185
 Chris Weston                     48                        133,548
*T

(a) The 'Number of Shares Acquired' includes 32 Partnership shares acquired at
386.50 pence per share and 16 Matching shares acquired at 392.58 pence per
share. Both Partnership and Matching elements are registered in the name of the
Trustee.

(2) They had transferred 12,944 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 April's allocation of Matching shares. The
Directors listed above, together with some 5,401 other employees, are
participants in the SIP and are potentially interested in the remaining 3,624
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.