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 03 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 43,243,800 4.18% 1,792,250 0.17% securities (2) Derivatives 1,097,495 0.11% 661,351 0.06% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 44,341,295 4.29% 2,453,601 0.24% (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 81,391 6.5845 Purchase 20,938 6.5873 Purchase 191,094 6.5897 Purchase 61,046 6.5969 Purchase 10,940 6.5909 Purchase 244,670 6.5863 Purchase 1,620 6.6250 Purchase 128,084 6.5808 Purchase 1,296 6.6250 Purchase 13,475 6.6054 Purchase 2,436 6.6250 Sale 27,511 6.5778 Sale 11 6.5658 Sale 23,602 6.5835 Sale 57,619 6.5950 Sale 30,196 6.5870 Sale 50,134 6.5877 Sale 105 6.6188 Sale 1,526 6.6250 Sale 19,253 6.5878 Sale 3,798 6.6237 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 27511 6.5777 CFD Long 23602 6.5834 CFD Long 30196 6.5869 CFD Long 50134 6.5876 CFD Long 19253 6.5877 CFD Long 57619 6.595 CFD Long 105 6.6187 CFD Long 3798 6.6237 CFD Short 128084 6.5807 CFD Short 81391 6.5844 CFD Short 244670 6.5862 CFD Short 20938 6.5872 CFD Short 191094 6.5896 CFD Short 10940 6.5909 CFD Short 61046 6.5968 (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 04 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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