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               22 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        4,654,978   3.30%          359,702     0.25%
securities
(2) Derivatives     2,233,231   1.58%        2,006,579     1.42%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               6,888,209   4.88%         2,366,281    1.68%


(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      223                  10.5360
Purchase      800                  10.3260
Purchase      1,189                10.4260
Purchase      2,095                10.4060
Purchase      48                   10.3780
Purchase      226                  10.6060
Purchase      50                   10.3980
Purchase      3,929                10.4300
Purchase      324                  10.3260
Purchase      500                  10.3580
Purchase      3,439                10.4094
Purchase      4,659                10.4094
Purchase      13,680               10.5255
Purchase      26,463               10.4231
Purchase      1,785                10.5598
Purchase      4,659                10.4094
Sale          11,345               10.5990
Sale          1,000                10.5740
Sale          20,602               10.4518
Sale          4,659                10.4094
Sale          500                  10.7440
Sale          1,996                10.5300
Sale          63,970               10.4052
Sale          289                  10.5160
Sale          226                  10.5620
Sale          7,687                10.4374
Sale          200                  10.7980

(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         4659                  10.4093
CFD        Short         3439                  10.4094
CFD        Short         26463                 10.423
CFD        Short         13680                 10.5254
CFD        Short         1785                  10.5598
CFD        Long          63970                 10.4051
CFD        Long          7687                  10.4374
CFD        Long          20602                 10.4517
CFD        Long          996                   10.5146
CFD        Long          1996                  10.53
CFD        Long          10349                 10.6071

(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                         23 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