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               26 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        6,283,831   4.45%             43,357   0.03%
securities
(2) Derivatives     1,364,908   0.97%          1,432,358   1.02%
(other than
options)
(3) Options and             0   0.00%                  0   0.00%
agreements to
purchase/sell

Total               7,648,739   5.42%          1,475,715   1.05%


(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      4,027                11.8468
Purchase      10,059               11.8430
Purchase      65,490               11.8639
Purchase      100                  11.8080
Purchase      3,160                11.8439
Purchase      3,160                11.8439
Sale          4,062                11.8584
Sale          8,992                11.8585
Sale          31,044               11.8585
Sale          5,545                11.8585
Sale          2,039                11.8583
Sale          2,090                11.8576
Sale          589                  11.8320
Sale          500                  11.8620
Sale          100                  11.8600
Sale          1,025                11.8620
Sale          15,350               11.8674
Sale          114                  11.8820
Sale          2,800                11.8576
Sale          3,355                11.8584
Sale          3,202                11.8584
Sale          3,663                11.8576
Sale          7,371                11.8576
Sale          3,160                11.8439
Sale          28,300               11.8576
Sale          77,400               11.8585
Sale          7,758                11.8346
Sale          2,359                11.8584
Sale          1,683                11.8583
Sale          8,351                11.8613

(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         14136                 11.8234
CFD        Short         10059                 11.8429
CFD        Short         3160                  11.8439
CFD        Short         4027                  11.8468
CFD        Short         65490                 11.8639
CFD        Long          7758                  11.8345
CFD        Long          8351                  11.8613
CFD        Long          15350                 11.8673

(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                         29 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