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               15 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        8,313,489   5.89%           124,419    0.09%
securities
(2) Derivatives     1,106,176   0.78%           803,055    0.57%
(other than
options)
(3) Options and             0   0.00%                 0    0.00%
agreements to
purchase/sell

Total               9,419,665   6.68%           927,474    0.66%


(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      83                   11.7620
Purchase      253                  11.7280
Purchase      1,000                11.6780
Purchase      170                  11.7460
Purchase      422                  11.7620
Purchase      426                  11.7260
Purchase      5,007                11.7335
Purchase      1,592                11.6781
Purchase      422                  11.7620
Purchase      84                   11.7391
Purchase      700                  11.7460
Purchase      2,282                11.7236
Purchase      2,282                11.7236
Purchase      1,000                11.7480
Purchase      2,282                11.7236
Purchase      2,282                11.7236
Purchase      40                   11.6840
Purchase      75,537               11.7385
Sale          500                  11.7015
Sale          136                  11.7315
Sale          2,642                11.7300
Sale          200                  11.7015
Sale          199                  11.7060
Sale          125                  11.7060
Sale          150                  11.7015
Sale          844                  11.7630
Sale          3,000                11.7578
Sale          1,874                11.7206
Sale          1,592                11.6781
Sale          581                  11.7206
Sale          825                  11.7206
Sale          1,465                11.7206
Sale          1,592                11.6781
Sale          125                  11.7215
Sale          1,735                11.7206
Sale          350                  11.7415
Sale          20,000               11.7535
Sale          2,396                11.7206
Sale          448                  11.6600
Sale          2,282                11.7236
Sale          929                  11.7060
Sale          245                  11.7215
Sale          2,282                11.7236


(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         13341                 11.7195
CFD        Short         4564                  11.7236
CFD        Short         5007                  11.7335
CFD        Short         75537                 11.7384
CFD        Long          448                   11.66
CFD        Long          1592                  11.678
CFD        Long          20000                 11.7535
CFD        Long          3000                  11.7577

(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                         16 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