Holding(s) in Company

Cairn Energy PLC
21 March 2008


TR-1: notification of major interests in shares

1. Identity of the issuer or the underlying               Cairn Energy PLC
issuer of existing shares to which voting rights        --------------------
are attached:
-------------------------------
2. Reason for the notification (please tick the appropriate box or
boxes)                                                                   -------
--------------------------------------------
An acquisition or disposal of voting rights                                  X
--------------------------------------------                            -------
An acquisition or disposal of financial instruments which may result in       
the acquisition of shares already issued to which voting rights are     -------
attached
--------------------------------------------
An event changing the breakdown of voting rights                              
--------------------------------------------                             -------
Other (please specify):                                                       
--------------------------------------------                             -------
3. Full name of person(s) subject to the                  BlackRock, Inc.
notification obligation:                                --------------------
-------------------------------
4. Full name of shareholder(s) (if different
from 3.):                                                --------------------
-------------------------------
5. Date of the transaction (and date on which             19th March 2008
the threshold is crossed or reached if                  --------------------
different):
-------------------------------
6. Date on which issuer notified:                         20th March 2008
-------------------------------                         --------------------
7. Threshold(s) that is/are crossed or reached:             Reached 13%
-------------------------------                         --------------------
8. Notified details:
-------------------------------                         --------------------

A: Voting rights attached to shares
Class/type   Situation previous to the   Resulting situation after the triggering
of shares    Triggering transaction      transaction
if possible
using the    Number of     Number of     Number Number of voting     % of voting
ISIN CODE    Shares        Voting Rights of     rights               rights
                                         shares
                                         Direct Direct Indirect      Direct Indirect
GB00B1RZDL64  16,982,534    16,982,534   N/A    N/A     17,009,839   N/A     13.00%

B: Financial Instruments
Resulting situation after the triggering transaction
Type of     Expiration Exercise/     Number of voting rights that may   % of
financial   date       Conversion    be acquired if the instrument is   voting
instrument             Period/ Date  exercised/ converted.              rights


Total (A+B)
Number of voting rights                      % of voting rights
17,009,839                                   13.00%




9. Chain of controlled undertakings through which the voting rights and/or the
financial instruments are effectively held, if applicable:

BlackRock Investment Management (UK) Limited - 17,009,839 (13.00%)

Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights:

13. Additional information:
14. Contact name:
15. Contact telephone number:





ANNEX NOTIFICATION OF MAJOR INTERESTS IN SHARES

A: Identity of the person or legal entity subject to the notification obligation
Full name (including legal form for legal entities) BlackRock, Inc
Contact address (registered office for legal        33 King William Street,
entities)                                           London, EC4R 9AS
Phone number                                        020 7743 2098
Other useful information (at least legal            Thomas Hone
representative for legal persons)

B: Identity of the notifier, if applicable
Full name
Contact address
Phone number
Other useful information (e.g. functional relationship with the person or
legal entity subject to the notification obligation)

C: Additional information





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