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) 15 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 41,195,171 3.98% 576,137 0.06% securities (2) Derivatives 752,550 0.07% 768,646 0.07% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 41,947,721 4.06% 1,344,783 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 42,850 7.3900 Purchase 1,662 7.2600 Purchase 698 7.2600 Purchase 685 7.2600 Purchase 687 7.3900 Purchase 685 7.2600 Purchase 3,428 7.3900 Purchase 6,543 7.3267 Purchase 11,154 7.2600 Purchase 1,394 7.2600 Purchase 5,142 7.3900 Purchase 1,387 7.3900 Purchase 85,755 7.3900 Purchase 4,359 7.3548 Purchase 7,352 7.3900 Purchase 7,701 7.2600 Purchase 5,999 7.3900 Purchase 2,662 7.3461 Purchase 12,700 7.3400 Purchase 6,471 7.3295 Purchase 300 7.3583 Purchase 26,589 7.3185 Purchase 3,587 7.3200 Purchase 2,477 7.2611 Sale 1,200 7.3338 Sale 326 7.2950 Sale 25,614 7.2600 Sale 6,480 7.3161 Sale 7,654 7.2600 Sale 300 7.3583 Sale 17,764 7.2600 Sale 30 7.3850 Sale 26,589 7.2600 Sale 170,360 7.3379 Sale 326 7.3457 Sale 6,625 7.3210 Sale 1,394 7.2600 Sale 3,061 7.2798 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 5874 7.26 CFD Long 3061 7.2798 CFD Long 6480 7.316 CFD Long 6625 7.3209 CFD Long 1200 7.3338 CFD Long 170360 7.3378 CFD Long 300 7.3583 CFD Short 2477 7.261 CFD Short 3587 7.32 CFD Short 6543 7.3267 CFD Short 6471 7.3294 CFD Short 12700 7.34 CFD Short 2662 7.3461 CFD Short 300 7.3583 (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 16 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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