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 29 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 4,702,629 3.33% 281,053 0.20% securities (2) Derivatives 2,453,103 1.74% 2,310,804 1.64% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 7,155,732 5.07% 2,591,857 1.84% (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 14,049 11.3500 Purchase 500 11.2780 Purchase 1,057 11.0552 Purchase 300 11.4080 Purchase 172 11.3660 Purchase 97 11.3120 Purchase 325 11.4560 Purchase 131 11.3280 Purchase 1,057 11.0552 Purchase 5,726 11.4500 Purchase 648 11.4513 Purchase 648 11.4513 Purchase 100 11.3260 Purchase 711 11.2440 Purchase 27,877 11.3483 Purchase 6,899 11.3802 Sale 1,057 11.0552 Sale 1,483 11.3300 Sale 25,082 11.3078 Sale 6,158 11.3399 Sale 648 11.4513 Sale 16,855 11.3595 (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 1057 11.0552 CFD Short 27877 11.3482 CFD Short 14049 11.3499 CFD Short 6899 11.3801 CFD Short 5726 11.45 CFD Short 648 11.4512 CFD Long 25082 11.3077 CFD Long 1483 11.33 CFD Long 6158 11.3399 CFD Long 16855 11.3594 (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 30 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

Companies

Barclays (BARC)
UK 100

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