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               21 November 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        4,703,383   3.33%          397,513     0.28%
securities
(2) Derivatives     2,127,631   1.51%        1,956,553     1.39%
(other than
options)
(3) Options and             0   0.00%                0     0.00%
agreements to
purchase/sell

Total               6,831,014   4.84%         2,354,066    1.67%


(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      28,521               10.2320
Purchase      1,066                10.2480
Purchase      150                  10.3460
Purchase      153                  10.2080
Purchase      200                  10.2460
Purchase      1,173                10.2160
Purchase      1,929                10.3100
Purchase      194                  10.2460
Purchase      100                  10.2080
Purchase      146                  10.1580
Purchase      500                  10.2580
Purchase      1,154                10.2453
Purchase      1,419                10.2383
Purchase      3,750                10.2344
Purchase      2,699                10.2876
Purchase      76                   10.2560
Sale          592                  10.2420
Sale          59,572               10.2158
Sale          11,744               10.2426
Sale          4,915                10.3183
Sale          3,750                10.2344
Sale          619                  10.3540
Sale          3,750                10.2344
Sale          563                  10.2140
Sale          5,164                10.2133
Sale          500                  10.2300
Sale          1,419                10.2383
Sale          18,501               10.2284
Sale          1,419                10.2383
Sale          25,735               10.2211

(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        28521                 10.232
CFD         Short        1154                  10.2452
CFD         Short        2699                  10.2875
CFD         Long         5164                  10.2132
CFD         Long         59572                 10.2157
CFD         Long         25735                 10.2211
CFD         Long         18501                 10.2284
CFD         Long         3750                  10.2344
CFD         Long         1419                  10.2383
CFD         Long         11744                 10.2425
CFD         Long         4915                  10.3182

(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                         22 November 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