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) 02 December 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 40,694,691 3.93% 60,783 0.01% securities (2) Derivatives 113,107 0.01% 658,019 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 40,807,798 3.95% 718,802 0.07% (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 4,033 7.5500 Purchase 40,028 7.5500 Purchase 2,289 7.5202 Purchase 1,649 7.5500 Purchase 410 7.5500 Purchase 104,531 7.5465 Purchase 24,910 7.5486 Purchase 40,062 7.5250 Purchase 13,389 7.5097 Purchase 12,000 7.5337 Purchase 718 7.5500 Sale 7,159 7.5313 Sale 8,521 7.5313 Sale 21,539 7.5313 Sale 15,219 7.5313 Sale 17,726 7.5313 Sale 129,472 7.5313 Sale 12,000 7.5337 Sale 105,448 7.5313 Sale 18,352 7.5313 Sale 3,246 7.5313 Sale 36,538 7.5313 Sale 3,270 7.5264 Sale 18,193 7.5313 Sale 900 7.5498 Sale 42,360 7.5200 Sale 33 7.5200 Sale 104,531 7.5465 Sale 55,389 7.5337 Sale 104,531 7.5435 Sale 6,185 7.5313 Sale 5,225 7.5313 Sale 10,298 7.5313 Sale 54,553 7.5313 Sale 25,278 7.5313 Sale 5,022 7.5313 Sale 3,398 7.5313 Sale 10,131 7.5313 Sale 1,571 7.5500 Sale 8,238 7.5313 Sale 23,290 7.5313 Sale 8,012 7.5313 Sale 45,170 7.5313 Sale 89,262 7.5313 Sale 698 7.5500 Sale 3,942 7.5313 Sale 807 7.5500 Sale 21,904 7.5313 Sale 4,629 7.5313 Sale 13,922 7.5313 Sale 24,161 7.5313 Sale 5,706 7.5313 Sale 1,113 7.5500 Sale 2,264 7.5500 Sale 16,713 7.5313 Sale 7,840 7.5313 Sale 4,362 7.5313 Sale 527 7.5500 Sale 27,274 7.5313 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 33 7.52 CFD Long 3270 7.5263 CFD Long 104531 7.5434 CFD Long 900 7.5497 CFD Short 106879 7.5179 CFD Short 2289 7.5202 CFD Short 40062 7.525 CFD Short 25570 7.5327 CFD Short 38483 7.5328 CFD Short 24910 7.5485 CFD Short 20738 7.55 CFD Short 1461 7.5525 (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 03 December 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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