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) 01 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 40,741,328 3.94% 240,314 0.02% securities (2) Derivatives 426,302 0.04% 695,563 0.07% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 41,167,630 3.98% 935,877 0.09% (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 1,300 7.5465 Purchase 17,160 7.5500 Purchase 85,903 7.5550 Purchase 90,901 7.5500 Purchase 29,485 7.5623 Purchase 4,184 7.5500 Purchase 606 7.5500 Purchase 114 Transfer Purchase 466 7.5500 Purchase 1,134 7.5550 Purchase 76,714 7.5486 Purchase 68,946 7.5548 Purchase 21,476 7.5500 Sale 1,300 7.5465 Sale 59,105 7.5576 Sale 11,200 7.5500 Sale 6,480 7.5500 Sale 14,997 7.5482 Sale 6,653 7.6000 Sale 35,911 7.5534 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 1300 7.5465 CFD Long 35911 7.5533 CFD Long 59105 7.5575 CFD Short 1300 7.5465 CFD Short 76714 7.5485 CFD Short 1622 7.55 CFD Short 68946 7.5547 CFD Short 29485 7.5622 (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 02 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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