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               19 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        7,423,678   5.26%             48,120   0.03%
securities
(2) Derivatives     1,226,584   0.87%          1,108,251   0.79%
(other than
options)
(3) Options and             0   0.00%                 0    0.00%
agreements to
purchase/sell

Total               8,650,262   6.13%          1,156,371   0.82%


(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      109                  11.7380
Purchase      3,033                11.6322
Purchase      100                  11.6580
Purchase      2,483                11.7357
Purchase      100                  11.7180
Purchase      3,177                11.7149
Purchase      12,004               11.7306
Purchase      2,483                11.7357
Purchase      3,000                11.7177
Purchase      23,588               11.7500
Sale          2,483                11.7357
Sale          5,167                11.7200
Sale          1,555                11.7201
Sale          3,196                11.7200
Sale          129                  11.7440
Sale          5,439                11.6967
Sale          2,000                11.7140
Sale          592                  11.7180
Sale          145                  11.6520
Sale          1,000                11.7440
Sale          177                  11.6720
Sale          400                  11.7180
Sale          300                  11.7420
Sale          59                   11.7220
Sale          1,412                11.6720
Sale          4,000                11.7000
Sale          11,428               11.6565
Sale          541                  11.6594
Sale          1,889                11.7201
Sale          81,449               11.7200
Sale          9,325                11.6967
Sale          3,015                11.7200
Sale          1,493                11.7201
Sale          1,844                11.7200
Sale          147,024              11.6967
Sale          2,456                11.6966
Sale          35,519               11.7201
Sale          5,329                11.7200
Sale          2,500                11.7040
Sale          5,765                11.6967
Sale          2,544                11.7201
Sale          7,100                11.6816
Sale          3,326                11.6967
Sale          1,091                11.7201
Sale          947                  11.7201
Sale          2,233                11.6967
Sale          9,622                11.6967
Sale          15,030               11.7201
Sale          777                  11.7201
Sale          7,430                11.6731

(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         3033                  11.6322
CFD        Short         36683                 11.6692
CFD        Short         3177                  11.7148
CFD        Short         3000                  11.7177
CFD        Short         12004                 11.7306
CFD        Short         2483                  11.7357
CFD        Long          11428                 11.6564
CFD        Long          541                   11.6594
CFD        Long          7430                  11.6731
CFD        Long          7100                  11.6815

(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 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