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               20 November 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        4,793,791   3.40%          217,075     0.15%
securities
(2) Derivatives     2,081,670   1.48%        1,999,225     1.42%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               6,875,461    4.87%        2,216,300    1.57%


(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      73                   10.0360
Purchase      477                  10.1717
Purchase      70                   10.2080
Purchase      147                  10.1880
Purchase      250                  10.1040
Purchase      50                   10.3680
Purchase      293                  10.2160
Purchase      1,955                10.2260
Purchase      719                  10.1760
Purchase      250                  10.2140
Purchase      190                  10.3620
Purchase      655                  10.2180
Purchase      100                  10.3280
Purchase      500                  10.2540
Purchase      193                  10.3180
Purchase      236                  10.1180
Purchase      297                  10.0180
Purchase      477                  10.1717
Purchase      27,785               10.2463
Purchase      17,016               10.1963
Purchase      15,211               10.1991
Purchase      14,083               10.2504
Purchase      800                  10.1880
Purchase      474                  10.2113
Purchase      389                  10.1760
Sale          46,300               10.1753
Sale          302                  10.1120
Sale          2,124                10.3480
Sale          5,751                10.0120
Sale          800                  10.0440
Sale          13,196               10.1684
Sale          477                  10.1717
Sale          42                   10.3400
Sale          236                  10.3520
Sale          500                  10.1400
Sale          14                   10.2320
Sale          17,468               10.2002
Sale          85                   10.0140

(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         477                   10.1716
CFD        Short         17016                 10.1963
CFD        Short         15211                 10.1991
CFD        Short         474                   10.2112
CFD        Short         27785                 10.2462
CFD        Short         14083                 10.2503
CFD        Long          5751                  10.0119
CFD        Long          13196                 10.1683
CFD        Long          46300                 10.1752
CFD        Long          17468                 10.2002
CFD        Long          2124                  10.348

(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                         21 November 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