Blocklisting Interim Review

Cairn Energy PLC
28 April 2006


                                   SCHEDULE 5


                        BLOCK LISTING SIX MONTHLY RETURN



To: Listing Applications

UK Listing Authority

Financial Services Authority

25, The North Colonnade

Canary Wharf

London, E14 5HS







 1.  Name of company: CAIRN ENERGY PLC
 2.  Name of scheme: CAIRN ENERGY PLC 1996 SECOND SHARE OPTION SCHEME
 3.  Period of return: From 28/10/2005 to 27/04/2006
 4.  Number and class of share(s) (amount of
     Stock/debit security) not issued under scheme: 226,742
 5.  Number of shares issued allotted under
     Scheme during period: 105,876
 6.  Balance under scheme not yet issued/allotted
     at end of period: 120,866
 7.  Number and class of share(s) (amount of
     stock/debit securities) originally listed and the 2,000,000 SHARES LISTED
     ON 21/10/2003;
     Date of admission: 1,305,700 SHARES LISTED ON 28/10/2004



Please confirm total number of shares in issue at the end of the period in order
for us to update our records
                                                                   160,016,886



Contact for queries: Address:
Name: MARYTH GUILD 50 LOTHIAN ROAD, EDINBURGH EH3 9BY
Telephone: [phone]


Person making return:


Name: MARYTH GUILD


Position: DEPUTY COMPANY SECRETARY


Signature:


                                   SCHEDULE 5


                        BLOCK LISTING SIX MONTHLY RETURN



To: Listing Applications

UK Listing Authority

Financial Services Authority

25, The North Colonnade

Canary Wharf

London, E14 5HS







 1.  Name of company: CAIRN ENERGY PLC
 2.  Name of scheme: CAIRN ENERGY PLC 2002 UNAPPROVED SHARE OPTION PLAN
 3.  Period of return: From 28/10/2005 to 27/04/2006
 4.  Number and class of share(s) (amount of
     Stock/debit security) not issued under scheme: 2,280,308
 5.  Number of shares issued allotted under
     Scheme during period: 182,654
 6.  Balance under scheme not yet issued/allotted
     at end of period: 2,097,654
 7.  Number and class of share(s) (amount of
     stock/debit securities) originally listed and the 2,000,000 SHARES LISTED
     ON 21/10/2003;
     Date of admission: 286,200 SHARES LISTED ON 28/10/2004



Please confirm total number of shares in issue at the end of the period in order
for us to update our records
                                                                   160,016,886



Contact for queries: Address:
Name: MARYTH GUILD 50 LOTHIAN ROAD, EDINBURGH EH3 9BY
Telephone: [phone]


Person making return:


Name: MARYTH GUILD


Position: DEPUTY COMPANY SECRETARY


Signature:


                                   SCHEDULE 5


                        BLOCK LISTING SIX MONTHLY RETURN



To: Listing Applications

UK Listing Authority

Financial Services Authority

25, The North Colonnade

Canary Wharf

London, E14 5HS







  1.  Name of company: CAIRN ENERGY PLC
  2.  Name of scheme: CAIRN ENERGY PLC 2003 APPROVED SHARE OPTION PLAN
  3.  Period of return: From 28/10/2005 to 28/04/2006
  4.  Number and class of share(s) (amount of
      Stock/debit security) not issued under scheme: 240,900
  5.  Number of shares issued allotted under
      Scheme during period: NIL
  6.  Balance under scheme not yet issued/allotted
      at end of period: 240,900
  7.  Number and class of share(s) (amount of
      stock/debit securities) originally listed and the
      Date of admission: 240,900 SHARES LISTED ON 28/10/2004



Please confirm total number of shares in issue at the end of the period in order
for us to update our records
                                                                   160,016,886



Contact for queries: Address:
Name: MARYTH GUILD 50 LOTHIAN ROAD, EDINBURGH EH3 9BY
Telephone: [phone]


Person making return:


Name: MARYTH GUILD


Position: DEPUTY COMPANY SECRETARY


Signature:




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