Rule 8.3 - BURREN ENERGY

FORM 8.3

    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
              (Rule 8.3 of the City Code on Takeovers and Mergers)


1.   KEY INFORMATION

Name of person dealing        BARCLAYS PLC
(Note 1)
Company dealt in              BURREN ENERGY
Class of relevant security    ORD GBP0.20
to which the dealings being
disclosed relate (Note 2)
Date of dealing               21 December 2007

2.   INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE

(a)  Interests and short positions (following dealing) in the class of relevant
security dealt in (Note 3)

                           Long                        Short

                     Number       (%)           Number       (%)

(1) Relevant        3,775,541   2.68%           47,844     0.03%
securities
(2) Derivatives       107,484   0.08%           48,505     0.03%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               3,883,025   2.75%           96,349     0.07%


(b)  Interests and short positions in relevant securities of the company, other
     than the class dealt in (Note 3)

Class of                    Long                     Short
relevant
security:

                  Number             (%)    Number            (%)

(1) Relevant
securities

(2) Derivatives
(other than
options)

(3) Options and
agreements to
purchase/sell

Total


(c)  Rights to subscribe (Note 3)

Class of relevant security:   Details



3.   DEALINGS (Note 4)

(a)  Purchases and sales

Purchase/sale Number of Securities Price per unit
                                   (GBP)
Purchase      15,403               12.1741
Purchase      29,258               12.1689
Purchase      8,763                12.1300
Purchase      6,092                12.1669
Purchase      14,572               12.1300
Purchase      29,258               12.1689
Purchase      15,622               12.1300
Purchase      29,787               12.1300
Purchase      1,614                12.1600
Purchase      36,303               12.1884
Purchase      1,241                12.1823
Purchase      42,924               12.1581
Purchase      3,443                12.1300
Purchase      27,302               12.1741
Purchase      6,092                12.1669
Purchase      2,136                12.1701
Purchase      35,306               12.1300
Purchase      11,000               12.1629
Purchase      2,136                12.1701
Sale          36,303               12.1884
Sale          11,217               12.1300
Sale          2,136                12.1701
Sale          6,092                12.1669
Sale          6,092                12.1669
Sale          29,787               12.1300
Sale          15,622               12.1300
Sale          29,787               12.1300
Sale          3,443                12.1300
Sale          11,000               12.1618
Sale          29,258               12.1689
Sale          1,241                12.1800
Sale          825                  12.1300
Sale          6,092                12.1669
Sale          27,302               12.1741
Sale          1,614                12.1600
Sale          15,403               12.1741


(b)  Derivatives transactions (other than options)

Product    Long/Short    Number of Securities  Price Per
name,      (Note 6)      (Note 7)              Unit (GBP)
e.g. CFD
CFD        Short         1614                  12.16
CFD        Short         11000                 12.1629
CFD        Short         2136                  12.17
CFD        Short         15403                 12.174
CFD        Short         1241                  12.1823
CFD        Long          6092                  12.1668


(c)  Options transactions in respect of existing securities

(i)  Writing, selling, purchasing or varying

Product name,   Writing,          Number of          Exercise  Type, e.g.      Expiry   Option money
e.g. call       selling,          securities to      price     American,       date     paid/received
option          purchasing,       which the option             European etc.            per unit (GBP)
                varying etc.      relates (GBP)

(ii) Exercising

Product name, e.g.  Number of           Exercise price per
call option         securities          unit (Note 5)




(d)  Other dealings (including new securities) (Note 4)


Nature of transaction Details           Price per unit
(Note 8)                                (if applicable)
                                        (Note 5)





4.   OTHER INFORMATION
None

Agreements, arrangements or understandings relating to options or derivatives


Full details of any agreement, arrangement or understanding between the
person disclosing and any other person relating to the voting rights of
any relevant securities under any option referred to on this form or
relating to the voting rights or future acquisition or disposal of any
relevant securities to which any derivative referred to on this form is
referenced.  If none, this should be stated.





Is a Supplemental Form 8 attached? (Note 9)                 NO


Date of disclosure                         24 December 2007
Contact name                               BARCLAYS COMPLIANCE
Telephone number                           020 7116 2913
If a connected EFM, name of
offeree/offeror with which connected
If a connected EFM, state nature of
connection (Note 10)


Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk