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               04 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        4,597,568   3.26%          215,324     0.15%
securities
(2) Derivatives     2,698,367   1.91%        2,609,979     1.85%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               7,295,935   5.17%         2,825,303    2.00%


(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      24,877               12.4573
Purchase      2,736                12.4600
Purchase      1,411                12.4847
Purchase      797                  12.5011
Purchase      21,821               12.4350
Purchase      200                  12.4500
Sale          500                  12.4500
Sale          350                  12.4100
Sale          409                  12.4500
Sale          440                  12.4400
Sale          1,000                12.4100
Sale          4,000                12.4000
Sale          700                  12.4200
Sale          200                  12.4600
Sale          400                  12.4400
Sale          153                  12.4300
Sale          128                  12.4900
Sale          95                   12.4210
Sale          455                  12.4600
Sale          80                   12.4510
Sale          2,000                12.4500
Sale          1,500                12.4100
Sale          21,821               12.4350
Sale          53,494               12.4166
Sale          21,821               12.4350
Sale          22,221               12.4463
Sale          1,411                12.4847
Sale          16,716               12.4392
Sale          2,452                12.5500
Sale          992                  12.4300
Sale          17,785               12.4514
Sale          235                  12.4300
Sale          554                  12.4500
Sale          344                  12.4500
Sale          634                  12.4600
Sale          636                  12.5000
Sale          587                  12.4300
Sale          1,000                12.4200
Sale          1,411                12.4847

(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         24877                 12.4572
CFD        Short         2736                  12.46
CFD        Short         797                   12.5011
CFD        Long          53494                 12.4165
CFD        Long          16716                 12.4391
CFD        Long          22221                 12.4462
CFD        Long          17785                 12.4513
CFD        Long          1411                  12.4846

(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                         05 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