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) Date of dealing 02 April 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 42,700,565 4.13% 2,363,200 0.23% securities (2) Derivatives 1,668,445 0.16% 652,524 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 44,369,010 4.29% 3,015,724 0.29% (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 7,988 6.5399 Purchase 11,630 6.5862 Purchase 15,272 6.5201 Purchase 19,214 6.5492 Purchase 38,191 6.5580 Purchase 126,405 6.5160 Purchase 2,100 6.5796 Purchase 7,879 6.4957 Purchase 19,253 6.5560 Purchase 260 6.5900 Purchase 4,862 6.5487 Purchase 1,631 6.5677 Sale 376 6.5550 Sale 4,282 6.5418 Sale 260 6.5850 Sale 4,150 6.5418 Sale 2,685 6.5418 Sale 7,133 6.5418 Sale 12,296 6.5418 Sale 30 6.5487 Sale 12,137 6.5160 Sale 23,875 6.5418 Sale 2 6.4826 Sale 5,008 6.5687 Sale 7,512 6.4912 Sale 2,816 6.5418 Sale 9,181 6.5500 Sale 6,555 6.5418 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 7512 6.4911 CFD Long 12137 6.516 CFD Long 30 6.5486 CFD Long 9181 6.55 CFD Short 7879 6.4957 CFD Short 126405 6.5159 CFD Short 15272 6.52 CFD Short 7988 6.5399 CFD Short 19214 6.5491 CFD Short 19253 6.5559 CFD Short 38191 6.558 CFD Short 2100 6.5796 CFD Short 11630 6.5862 (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 April 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) DETAILS OF OPEN POSITIONS (This form should be attached to Form 8.1, Form 8.1(b)(ii) or Form 8.3, as appropriate) Product name, Written or Number of securities Exercise price Type, e.g. Expiry date e.g. call option purchased to which the option (Note 2) American, 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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