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               29 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        6,195,633   4.39%             41,712   0.03%
securities
(2) Derivatives     1,384,133   0.98%          1,452,060   1.03%
(other than
options)
(3) Options and             0   0.00%                  0   0.00%
agreements to
purchase/sell

Total               7,579,766   5.37%          1,493,772   1.06%


(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      720                  11.8980
Purchase      36                   11.8180
Purchase      422                  11.8380
Purchase      1,394                11.8301
Purchase      100                  11.8122
Purchase      1,200                11.8300
Purchase      2,160                11.8738
Purchase      151                  11.7923
Sale          4,052                11.8226
Sale          267                  11.8160
Sale          720                  11.8980
Sale          1,000                11.8020
Sale          400                  11.8520
Sale          85                   11.8220
Sale          130                  11.8120
Sale          671                  11.8320
Sale          200                  11.8760
Sale          3,250                11.8226
Sale          324                  11.8540
Sale          10,594               11.8226
Sale          237                  11.8540
Sale          18,075               11.8316
Sale          1,408                11.8226
Sale          40,685               11.8226
Sale          5,235                11.8226
Sale          720                  11.8980
Sale          2,844                11.8226
Sale          3,054                11.8226
Sale          430                  11.8289

(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         151                   11.7922
CFD        Short         14697                 11.7996
CFD        Short         100                   11.8122
CFD        Short         2594                  11.83
CFD        Short         2160                  11.8737
CFD        Long          430                   11.8289
CFD        Long          18075                 11.8315
CFD        Long          720                   11.898

(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                         30 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