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) 07 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 40,504,435 3.92% 490,833 0.05% securities (2) Derivatives 673,712 0.07% 650,620 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 41,178,147 3.98% 1,141,453 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 300 7.4800 Purchase 5,688 7.4182 Purchase 86,918 7.4848 Purchase 37,047 7.4877 Purchase 400 7.4900 Purchase 1,100 7.5212 Purchase 9,400 7.5064 Purchase 5,972 7.4200 Purchase 34,275 7.4200 Purchase 1,864 7.5000 Purchase 1,141 7.4200 Purchase 3,308 7.4200 Purchase 24,723 7.4912 Purchase 696 7.4200 Purchase 348 7.4200 Purchase 71,118 7.5950 Purchase 1,340 7.4200 Sale 14,770 7.4608 Sale 300 7.4800 Sale 26,968 7.4865 Sale 91,505 7.4848 Sale 5,796 7.4395 Sale 400 7.4900 Sale 10,864 7.4200 Sale 49,062 7.5000 Sale 14,552 7.4200 Sale 36,380 7.4200 Sale 2,629 7.4200 Sale 3,883 7.4200 Sale 5,972 7.4200 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 5796 7.4394 CFD Long 14770 7.4607 CFD Long 91505 7.4848 CFD Long 26968 7.4865 CFD Long 400 7.49 CFD Short 5688 7.4182 CFD Short 4554 7.42 CFD Short 86918 7.4847 CFD Short 37047 7.4877 CFD Short 400 7.49 CFD Short 9400 7.5064 CFD Short 1100 7.5212 (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 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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