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) 20 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 41,517,915 4.02% 514,367 0.05% securities (2) Derivatives 755,569 0.07% 767,523 0.07% (other than options) (3) Options and 0 0.00% 0 0.00% agreements to purchase/sell Total 42,273,484 4.09% 1,281,890 0.12% (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 36,380 7.3600 Purchase 1,289 7.3248 Purchase 3,728 7.2937 Purchase 429 7.2850 Purchase 2,649 7.3306 Purchase 1,152 7.3261 Purchase 123,328 7.3022 Purchase 1,543 7.3155 Purchase 93,906 7.2856 Purchase 3,651 7.3600 Purchase 11,764 7.3600 Purchase 7,927 7.3358 Purchase 4,060 7.3600 Purchase 696 7.3600 Purchase 348 7.3600 Purchase 1,376 7.2880 Purchase 8,905 7.3900 Purchase 11,141 7.3600 Purchase 700 7.3036 Purchase 2,571 7.3600 Purchase 74,203 7.3600 Purchase 2,321 7.3700 Purchase 8,024 7.3208 Purchase 13,610 7.3500 Purchase 1,303 7.3700 Sale 93,906 7.2856 Sale 4,982 7.3159 Sale 11,746 7.2891 Sale 2,665 7.3373 Sale 1,025 7.3643 Sale 700 7.3036 Sale 15,128 7.3150 Sale 126 7.3700 Sale 46,903 7.3600 Sale 837 7.2846 (b) Derivatives transactions (other than options) Product name, Long/Short Number of Price per (e.g. CFD) (Note 6) Securities unit (GBP) CFD Long 93906 7.2855 CFD Long 11746 7.289 CFD Long 92812 7.3029 CFD Long 700 7.3035 CFD Long 15128 7.3149 CFD Long 4982 7.3158 CFD Long 2665 7.3372 CFD Long 1025 7.3642 CFD Short 93906 7.2855 CFD Short 3728 7.2936 CFD Short 123328 7.3022 CFD Short 700 7.3035 CFD Short 1543 7.3155 CFD Short 1152 7.3261 CFD Short 2649 7.3305 (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 21 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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