Holding(s) in Company

Cairn Energy PLC
31 March 2006


FOR IMMEDIATE RELEASE
                                                             31 March 2006


Cairn Energy PLC ('Cairn')

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

On 30 March 2006, Cairn was notified by FMR Corp. and its direct and indirect
subsidiaries and by Fidelity  International Limited and its direct and indirect
subsidiaries, both being non-beneficial holders, that they had an  interest in
17,566,996 ordinary shares of 10 pence each in Cairn, representing 10.98% of
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 28 March 2006 are as follows:-

REGISTERED HOLDER                          NUMBER OF SHARES       PERCENTAGE
JP Morgan, Bournemouth                                  579,216
State Street Bank and Trust Co LNDN                     491,950
Northern Trust London                                   457,107
Bank of New York Brussels                               221,300
Mellon Bank                                             150,400
HSBC Bank PLC                                            79,200
Clydesdale Bank PLC                                      12,400
State Street Bank and Trust Co                           15,200
State Street Bank and Trust Co                          114,294
JP Morgan, Bournemouth                                6,635,672
Brown Bros Harriman Ltd Lux                           7,951,377
JP Morgan, Bournemouth                                  189,600
Bank of New York Brussels                                36,600
Northern Trust London                                    23,430
JP Morgan, Bournemouth                                  377,000
Bank of New York Europe LDN                             232,250
                                   TOTAL             17,566,996          10.98%

The notifiable interests also comprise the notifiable interest of Mr Edward C.
Johnson 3rd, a principal shareholder of  FMR Corp. and Fidelity International
Limited.




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