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 08 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 42,851,702 4.15% 2,031,067 0.20% securities (2) Derivatives 1,459,935 0.14% 635,756 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 44,311,637 4.29% 2,666,823 0.26% (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 7.0062 Purchase 1,942 7.0463 Purchase 133,553 7.0385 Purchase 3,826 7.1479 Purchase 980 7.0813 Purchase 2,971 7.4352 Purchase 77,485 7.0664 Purchase 982 7.1050 Purchase 13,759 7.1050 Purchase 14,016 7.1050 Purchase 686 7.0634 Purchase 1,402 7.0600 Purchase 14,939 7.1050 Sale 81,718 7.0656 Sale 62,118 7.1595 Sale 7,172 7.0503 Sale 1,793 7.2618 Sale 43,563 7.0503 Sale 66 Transfer Sale 10,251 7.1037 Sale 180,037 7.0662 Sale 6,426 7.0503 Sale 16,755 7.0608 Sale 4,681 7.1350 Sale 6,020 7.0503 Sale 17,803 7.0503 Sale 3,542 7.0503 Sale 7,107 7.0503 Sale 3,507 7.0503 Sale 1,942 7.2111 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 16755 7.0607 CFD Long 81718 7.0655 CFD Long 180037 7.0662 CFD Long 10251 7.1036 CFD Long 62118 7.1595 CFD Long 1942 7.2111 CFD Short 1300 7.0062 CFD Short 133553 7.0384 CFD Short 1942 7.0463 CFD Short 77485 7.0664 CFD Short 980 7.0813 CFD Short 3826 7.1478 (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 09 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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