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) 24 November 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 42,192,972 4.08% 832,301 0.08% securities (2) Derivatives 1,181,453 0.11% 763,480 0.07% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 43,374,425 4.19% 1,595,781 0.15% (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 93,928 7.5136 Purchase 6,025 7.5087 Purchase 12,731 7.5300 Purchase 50,441 7.5193 Purchase 600 7.5117 Purchase 842 7.5161 Purchase 293 7.5057 Purchase 21,931 7.5129 Purchase 1,300 7.5062 Purchase 1,337 7.5150 Purchase 1,100 7.5300 Purchase 6,034 7.5300 Purchase 25,235 7.5300 Purchase 980 7.5300 Purchase 12,930 7.5300 Purchase 12,930 7.5400 Purchase 23,274 7.5300 Purchase 1,553 7.5300 Purchase 684 7.5300 Purchase 24,136 7.5300 Sale 212 7.5000 Sale 749 7.5148 Sale 1,635 7.5389 Sale 600 7.5117 Sale 1,039 7.5300 Sale 12,731 7.5300 Sale 12,930 7.5400 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 600 7.5116 CFD Long 749 7.5147 CFD Long 1635 7.5388 CFD Short 293 7.5056 CFD Short 1300 7.5062 CFD Short 6025 7.5087 CFD Short 600 7.5116 CFD Short 93928 7.5136 CFD Short 5595 7.5143 CFD Short 842 7.5161 CFD Short 50441 7.5193 (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 25 November 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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