Rule 8.3 - BRITISH ENERGY GROUP

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 BRITISH ENERGY GROUP Class of relevant security ORD GBP0.10 to which the dealings being disclosed relate (Note 2) 06 October 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 40,481,878 3.91% 500,952 0.05% securities (2) Derivatives 684,431 0.07% 655,671 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 41,166,309 3.98% 1,156,623 0.11% (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 45,567 7.5310 Purchase 300 7.5267 Purchase 32,300 7.5234 Purchase 2,628 7.5373 Purchase 700 7.5300 Purchase 696 7.5000 Purchase 49,062 7.5000 Purchase 7,969 7.5000 Purchase 11,154 7.5300 Purchase 1,422 7.5000 Purchase 685 7.5114 Sale 10,914 7.5000 Sale 54,454 7.5245 Sale 43,225 7.5500 Sale 120,397 7.5201 Sale 187,350 7.5226 Sale 300 7.5267 Sale 9,500 7.5200 Sale 2,628 7.5139 Sale 700 7.5300 Sale 30,066 7.5000 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 2628 7.5138 CFD Long 129897 7.52 CFD Long 187350 7.5226 CFD Long 54454 7.5244 CFD Long 300 7.5266 CFD Short 32300 7.5234 CFD Short 300 7.5266 CFD Short 45567 7.531 CFD Short 2628 7.5373 (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 October 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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