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) Date of dealing 30 April 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 44,009,948 4.26% 732,199 0.07% securities (2) Derivatives 703,647 0.07% 641,375 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 44,713,595 4.33% 1,373,574 0.13% (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 6,111 7.6568 Purchase 350 7.6559 Purchase 350 7.6000 Purchase 6,305 7.6048 Purchase 661 7.7316 Purchase 8,602 7.6694 Purchase 530 7.6800 Purchase 391 7.6000 Purchase 91,194 7.6000 Purchase 13,207 7.6014 Purchase 87,445 7.6500 Purchase 30,424 7.6823 Sale 66,013 7.6644 Sale 3,423 7.6566 Sale 2,610 7.6500 Sale 2,098 7.6386 Sale 938 7.6000 Sale 5,832 7.6000 Sale 24,381 7.6000 Sale 564 7.6000 Sale 24,382 7.6000 Sale 5,992 7.6200 Sale 648 7.6250 Sale 11,410 7.6000 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 2098 7.6385 CFD Long 2610 7.6499 CFD Long 3423 7.6565 CFD Long 66013 7.6643 CFD Short 13207 7.6014 CFD Short 6305 7.6047 CFD Short 6111 7.6568 CFD Short 8602 7.6693 CFD Short 30424 7.6823 (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 01 May 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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