Holding(s) in Company

Cairn Energy PLC
21 March 2006


FOR IMMEDIATE RELEASE
                                                               21 March 2006


                                Cairn Energy PLC ('Cairn')

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

On 21 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 18,768,305 ordinary shares of 10 pence each in Cairn, representing 11.74% 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 20 March 2006 are as follows:-

REGISTERED HOLDER                                 NUMBER OF SHARES       PERCENTAGE

Northern Trust London                                   612,707
JP Morgan, Bournemouth                                  583,416
State Street Bank and Trust Co LNDN                     486,350
Bank of New York Brussels                               273,700
Mellon Bank                                             185,900
HSBC Bank PLC                                            79,200
Clydesdale Bank PLC                                      15,600
State Street Bank and Trust Co                           20,800
State Street Bank and Trust Co                          156,094
JP Morgan, Bournemouth                                7,406,872
Brown Bros Harriman Ltd Lux                           7,951,377
JP Morgan, Bournemouth                                  218,400
Bank of New York Brussels                                46,100
Northern Trust London                                    23,430
JP Morgan, Bournemouth                                  419,309
Bank of New York Europe LDN                             289,050

                                   TOTAL             18,768,305          11.74%


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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