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               19 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        4,798,396   3.40%          191,096     0.14%
securities
(2) Derivatives     1,996,831   1.42%        1,924,179     1.36%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               6,795,227   4.82%         2,115,275    1.50%


(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      113                  10.0180
Purchase      192                  10.3680
Purchase      563                  10.2240
Purchase      1,000                10.0680
Purchase      800                  9.7800
Purchase      87                   10.1780
Purchase      475                  10.4380
Purchase      189                  10.4580
Purchase      290                  10.4340
Purchase      444                  10.3500
Purchase      500                  9.8910
Purchase      200                  10.1860
Purchase      32                   10.4580
Purchase      1,000                10.0980
Purchase      984                  10.0980
Purchase      600                  9.9880
Purchase      500                  10.0480
Purchase      1,000                9.7940
Purchase      500                  10.1340
Purchase      98                   10.1340
Purchase      1,867                10.1180
Purchase      9,801                10.1500
Purchase      500                  9.7780
Purchase      100                  10.0280
Purchase      1,000                10.1340
Purchase      4,863                10.2800
Purchase      100                  10.0960
Purchase      1,278                10.1060
Purchase      864                  10.3617
Purchase      19,649               10.1976
Purchase      500                  10.4300
Purchase      21,487               10.2999
Purchase      864                  10.3617
Purchase      75                   10.2484
Purchase      1,000                10.1860
Purchase      981                  10.1880
Purchase      2,000                10.2000
Purchase      6,016                10.1924
Purchase      250                  10.1480
Purchase      2,000                10.4380
Purchase      142                  9.8490
Purchase      500                  10.0560
Purchase      821                  10.2880
Purchase      117                  10.0760
Purchase      500                  10.3990
Purchase      99                   10.0280
Purchase      302                  9.8370
Purchase      737                  10.1120
Purchase      350                  10.0960
Purchase      10,000               10.2100
Purchase      500                  9.7940
Sale          500                  10.0340
Sale          239                  10.4520
Sale          500                  10.4500
Sale          1,500                10.2730
Sale          116                  10.4500
Sale          600                  10.4020
Sale          737                  10.0140
Sale          100                  10.0020
Sale          1,000                9.8500
Sale          42                   0.1620
Sale          1,000                10.3820
Sale          253                  10.0980
Sale          84                   10.4508
Sale          29,273               10.1621
Sale          5,665                10.5076
Sale          13,376               10.1800
Sale          7,622                10.1565
Sale          864                  10.3617
Sale          6,918                10.3476
Sale          250                  10.4500
Sale          653                  10.4500
Sale          500                  10.3960
Sale          358                  10.1340
Sale          500                  10.1440
Sale          83                   10.3620
Sale          302                  10.1120
Sale          426                  10.4500
Sale          169                  10.1640
Sale          836                  10.2510
Sale          400                  10.0540
Sale          235                  9.9920
Sale          142                  10.0060
Sale          293                  10.4500
Sale          597                  10.4520
Sale          800                  10.4740
Sale          1,000                10.3540
Sale          400                  10.4483
Sale          1,000                10.3640
Sale          981                  10.4020
Sale          268                  10.3555
Sale          461                  10.4500
Sale          1,300                10.0220
Sale          80                   10.1200

(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         5982                  10.0939
CFD        Short         6016                  10.1924
CFD        Short         13667                 10.2429
CFD        Short         21487                 10.2999
CFD        Short         864                   10.3617
CFD        Long          7622                  10.1564
CFD        Long          29273                 10.162
CFD        Long          13376                 10.1799
CFD        Long          6918                  10.3475
CFD        Long          400                   10.4483
CFD        Long          5665                  10.5076

(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                         20 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