Cairn Energy Regulatory News (CNE)

FOR IMMEDIATE RELEASE

31 May 2012

CAIRN ENERGY PLC (the "Company")

Total Voting Rights

For the purposes of the provisions of the Financial Services Authority's Disclosure and Transparency Rules, the total number of shares in the capital of the Company in issue as at the date of this notice is as follows:

Class                      Nominal value          Number                   Voting

                              per share                 in issue                   rights attached

Ordinary Shares       231/169 pence         602,375,300             602,375,300

The Company does not hold any shares in treasury.

The above figure may be used by shareholders as the denominator for the calculations by which they will determine if they are required to notify their interest in, or a change to their interest in, the Company under the Disclosure and Transparency Rules.