Director 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 the 22 June 2005 that:

(1) The following Directors of the Company acquired Shares under the SIP on

20 June 2005 from the Shares acquired by the Trustee on that date:


Director                        Number                   Aggregate shares held
                                of Shares                Beneficially (across all accounts
                                Acquired*                following acquisition)
Phil Bentley                    76                       257,671
Mark Clare                      76                       705,726
Sir Roy Gardner                 76                       2,175,458
Jake Ulrich                     76                       594,117


* The 'Number of Shares Acquired' includes 56 Partnership shares acquired at
222.25 pence and 20 Matching shares acquired at 222.08 pence. Both Partnership
and Matching elements are registered in the name of the Trustee.

(2) They had transferred 2,573 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 June's allocation of Matching shares. The Directors listed
above, together with some 5,400 other employees, are potential participants in
the Plan and are to be treated as interested in the remaining 1,537 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.