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 07 January 2008 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 3,881,230 2.75% 5,263 0.00% securities (2) Derivatives 4,991 0.00% 76,370 0.05%C (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 3,886,221 2.75% 81,633 0.06% (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 3,949 12.2087 Purchase 8,115 12.1784 Purchase 3,949 12.2098 Purchase 54,236 12.1804 Purchase 24,280 12.2484 Purchase 62,378 12.1820 Purchase 1,474 12.2450 Purchase 5,086 12.1700 Purchase 58,429 12.1802 Purchase 3,949 12.2087 Purchase 6,668 12.1811 Sale 8,115 12.1784 Sale 54,236 12.1804 Sale 3,949 12.2087 Sale 6,668 12.1811 Sale 1,474 12.2439 Sale 8,115 12.1784 Sale 3,949 12.2087 Sale 62,378 12.1820 Sale 58,429 12.1802 Sale 62,378 12.1820 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Short 3949 12.2097 CFD Long 8115 12.1784 CFD Long 54236 12.1804 CFD Long 6668 12.181 CFD Long 1474 12.2439 (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 08 January 2008 Contact name Geoff Smith 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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