Holding(s) in Company

Cairn Energy PLC
12 October 2006





FOR IMMEDIATE RELEASE


12 October 2006



                           Cairn Energy PLC ('Cairn')

   Notification of Shareholding - Companies Act 1985 ss.198-202 (as amended)


On 11 October 2006, Cairn was notified by Aviva plc on behalf of it and its
subsidiaries that, having disposed of a total of 49,455 shares on 10 October
2006, the Aviva group has a notifiable interest in Cairn's current issued
ordinary share capital.


The registered holders to which this notification relates and the number of
shares held by those registered holders as at 11 October 2006 is as follows:-

                                                         NUMBER OF     %
REGISTERED HOLDER                                         SHARES

BNY Norwich Union Nominees Ltd                          1,683,247
Chase GA Group Nominees Ltd                             1,843,124
Chase Nominees Ltd                                        238,260
CUIM Nominee Ltd                                          945,092
Vidacos Nominees Ltd                                       51,299
                                                        4,761,022     2.97%







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