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               16 October 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        8,170,820   5.79%            74,454    0.05%
securities
(2) Derivatives     1,124,043   0.80%            889,417   0.63%
(other than
options)
(3) Options and             0   0.00%                 0    0.00%
agreements to
purchase/sell

Total               9,294,863   6.59%            963,871   0.68%


(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      1,000                11.7080
Purchase      127                  11.7080
Purchase      100                  11.7180
Purchase      100                  11.7180
Purchase      1,647                11.7551
Purchase      1,942                11.7211
Purchase      8,125                11.7456
Purchase      36,788               11.7333
Purchase      1,647                11.7551
Purchase      12,910               11.7259
Purchase      10,644               11.6906
Sale          6,000                11.7600
Sale          72                   11.8015
Sale          149                  11.8015
Sale          411                  11.6604
Sale          342                  11.6802
Sale          126                  11.7215
Sale          11,145               11.7312
Sale          60                   11.7615
Sale          406                  11.7115
Sale          290                  11.7315
Sale          171                  11.7645
Sale          26,236               11.7456
Sale          43,843               11.7456
Sale          7,223                11.6983
Sale          4,509                11.7312
Sale          966                  11.6925
Sale          6,002                11.7456
Sale          320                  11.7015
Sale          10,644               11.6906
Sale          1,000                11.7515
Sale          77,586               11.7456
Sale          10,644               11.6906
Sale          1,647                11.7551
Sale          1,982                11.7312
Sale          804                  11.7030
Sale          87                   11.7315
Sale          5,034                11.7312

(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        24950                  11.6906
CFD        Short        1942                   11.721
CFD        Short        12910                  11.7259
CFD        Short        36788                  11.7333
CFD        Short        8125                   11.7456
CFD        Short        1647                   11.755
CFD        Long         10644                  11.6905
CFD        Long         7223                   11.6983

(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                         17 October 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