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               06 December 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        4,578,779   3.24%          193,735     0.14%
securities
(2) Derivatives     2,820,084   2.00%        2,749,574     1.95%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               7,398,863   5.24%         2,943,309    2.09%

(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      2,848                12.4732
Purchase      200                  12.4666
Purchase      765                  12.4821
Purchase      6,442                12.4868
Purchase      765                  12.4821
Purchase      20,664               12.4330
Purchase      236                  12.4924
Purchase      2,220                12.3644
Sale          2,848                12.4732
Sale          883                  12.4000
Sale          250                  12.4900
Sale          124                  12.4510
Sale          73                   12.3208
Sale          892                  12.4000
Sale          826                  12.4799
Sale          2,848                12.4732
Sale          444                  12.4500
Sale          65,603               12.4397
Sale          24,301               12.4274
Sale          765                  12.4821
Sale          1,066                12.4200

(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         2220                  12.3644
CFD        Short         20664                 12.4329
CFD        Short         200                   12.4665
CFD        Short         765                   12.4821
CFD        Short         6442                  12.4867
CFD        Short         236                   12.4923
CFD        Long          24301                 12.4273
CFD        Long          65603                 12.4396
CFD        Long          2848                  12.4731
CFD        Long          826                   12.4799

(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                         07 December 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