Holding(s) in Company

Camco International Ltd
02 June 2006


                           Camco International Limited
                                 (the 'Company')


                    Notification of substantial shareholding


The Company received notification on 26 May 2006 that Fidelity Investments
Limited ('FIL') and its direct and indirect subsidiaries have a non-beneficial
interest in 11,718,644 ordinary shares of €0.01 in the Company ('Ordinary
Shares'), equivalent to 9.02 per cent. of the Company's issued ordinary share
capital. The interest is registered as follows:

Nominee/registered name                                        Ordinary Shares
                                                                          held
JP MORGAN, BOURNEMOUTH                                                 692 400
CITIBANK LONDON                                                        540,600
NORTHERN TRUST LONDON                                                  466,400
BANK OF NEW YORK BRUSSELS                                              178,900
MELLON BANK                                                            113,200
STATE STR BK AND TR CO LNDN                                             79,000
MELLON BANK N.A.                                                       868,900
JP MORGAN, BOURNEMOUTH                                               2,305,540
BROWN BROS HARRIMAN LTD LUX                                          5,888,004
STATE STR BK AND TR CO LNDN                                            383,700
JP MORGAN, BOURNEMOUTH                                                 202,000


The non-beneficial holders are FMR Corp. and it direct and indirect
subsidiaries, and FIL and its direct and indirect subsidiaries.


The notification by FIL also comprises a notifiable interest of Mr Edward C
Johnson 3rd, a principal shareholder of FIL.


Enquiries:

Camco International Limited                                   020 7256 7979
Scott McGregor, Group Chief Financial Officer




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