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               25 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        6,418,687   4.55%             33,067   0.02%
securities
(2) Derivatives     1,333,449   0.95%          1,335,486   0.95%
(other than
options)
(3) Options and             0   0.00%                  0   0.00%
agreements to
purchase/sell

Total               7,752,136   5.49%          1,368,553   0.97%


(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      1,617                11.8048
Purchase      64                   11.9060
Purchase      3,951                11.8000
Purchase      883                  11.8920
Purchase      9,756                11.9036
Purchase      36                   11.9080
Purchase      10,048               11.8480
Sale          777                  11.8194
Sale          3                    11.8620
Sale          245                  11.8700
Sale          151                  11.8260
Sale          3,072                11.8194
Sale          87                   11.8120
Sale          125                  11.8920
Sale          70                   11.8940
Sale          3,963                11.8913
Sale          4,536                11.8912
Sale          96,761               11.8909
Sale          9,597                11.8909
Sale          1,890                11.8194
Sale          543                  11.8194
Sale          4,088                11.9075
Sale          7,187                11.8911
Sale          36                   11.9080
Sale          3,951                11.8000
Sale          36                   11.9080
Sale          1,354                11.8194
Sale          10,547               11.8194
Sale          1,060                11.8194
Sale          26,319               11.8194
Sale          8,464                11.8583
Sale          12,492               11.8908
Sale          1,109                11.8194
Sale          1,957                11.8914
Sale          25,204               11.8908
Sale          669                  11.8194
Sale          19,707               11.8126


(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         1617                  11.8048
CFD        Short         16889                 11.8139
CFD        Short         10048                 11.8479
CFD        Short         9756                  11.9035
CFD        Long          19707                 11.8126
CFD        Long          8464                  11.8583
CFD        Long          4088                  11.9075
CFD        Long          36                    11.908


(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                         26 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