Rule 8.3 - SCOTTISH POWER PLC

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 SCOTTISH POWER PLC Class of relevant security ORD GBP0.42 to which the dealings being disclosed relate (Note 2) Date of dealing 01 December 2006 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 67,140,357 4.51% 11,045,301 0.74% securities (2) Derivatives 3,919,057 0.26% 773,620 0.05% (other than options) (3) Options and 2,564,742 0.17% 3,574,136 0.24% agreements to purchase/sell Total 73,624,156 4.95% 15,393,057 1.03% (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 Scottish Power Plc GBP (%) (%) (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 3,000 7.5465 Purchase 419 7.5485 Purchase 426 7.5350 Purchase 1,027 7.5485 Purchase 6,847 7.5485 Purchase 900 7.5485 Purchase 829 7.5485 Purchase 1,500 7.5800 Purchase 1,171 7.4550 Purchase 597 7.5485 Purchase 11,101 7.5624 Purchase 418 7.5485 Purchase 600 7.5500 Purchase 132,300 7.5153 Purchase 2,849 Transfer Purchase 3,055 7.5265 Purchase 48,500 7.4600 Purchase 1,307 7.5485 Purchase 6,386 7.4465 Sale 650 7.5606 Sale 1,380 7.5375 Sale 131,182 7.5107 Sale 126,564 7.5246 Sale 399 7.4535 Sale 730 7.5606 Sale 650 7.5606 Sale 850 7.5606 Sale 630 7.5566 Sale 7,559 7.4550 Sale 1,492 7.5402 Sale 1,220 7.5606 Sale 700 7.5606 Sale 1,050 7.5606 Sale 465 7.5302 Sale 15,000 7.4900 Sale 70,000 7.4513 Sale 1,500 7.5800 Sale 815 7.5606 Sale 213,544 7.5416 Sale 262,363 7.5107 Sale 12,502 7.5502 Sale 393,600 7.5107 (b) Derivatives transactions (other than options) Product Long/Short Number of Securities Price Per name, (Note 6) (Note 7) Unit (GBP) e.g. CFD CFD Short 6386 7.4464 CFD Short 48500 7.4600 CFD Short 132300 7.5152 CFD Short 3055 7.5265 CFD Short 5189 7.5391 CFD Short 3000 7.5465 CFD Short 1500 7.5800 CFD Long 399 7.4535 CFD Long 126564 7.5245 CFD Long 213544 7.5416 CFD Long 1500 7.5800 (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 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 December 2006 Contact name BARCLAYS COMPLIANCE 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

Latest directors dealings