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               11 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        64,788,797     4.35%      10,526,726    0.71%
securities
(2) Derivatives      3,026,051     0.20%       1,357,861    0.09%
(other than
options)
(3) Options and      2,564,742     0.17%       3,574,136    0.24%
agreements to
purchase/sell

Total               70,379,590     4.73%       15,458,723   1.04%


(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           24,392             7.5297
Purchase          258,000             7.5387
Purchase            8,025             7.5250
Purchase           28,700             7.5353
Purchase            6,981             Transfer
Purchase           22,000             7.5409
Purchase            3,332             7.5269
Purchase            1,085             7.5250
Purchase            3,061             7.4765
Sale                  900             7.5262
Sale                  400             7.5250
Sale                1,500             7.5162
Sale                  800             7.5250
Sale                  950             7.5250
Sale                  500             7.5262
Sale                  850             7.5250
Sale                  600             7.5250
Sale                1,190             7.5250
Sale                  800             7.5250
Sale                  650             7.5250
Sale                  800             7.5265
Sale                  800             7.5250
Sale                  485             7.5262
Sale                  500             7.5212
Sale                1,000             7.5250
Sale                1,000             7.5212
Sale                  850             7.5250
Sale                  700             7.5250
Sale                  500             7.5262
Sale                1,300             7.5250
Sale                  600             7.5250
Sale                1,650             7.5250
Sale                  500             7.5250
Sale                1,428             7.5213
Sale                1,850             7.5250
Sale                  600             7.5250
Sale                  850             7.5250
Sale                  500             7.5262
Sale                4,100             7.5250
Sale                  850             7.5250
Sale                  600             7.5262
Sale                1,500             7.5250
Sale                  500             7.5212
Sale                  550             7.5262
Sale                  600             7.5250
Sale                  725             7.5250
Sale                  450             7.5262
Sale                  350             7.5250
Sale                6,746             7.5302
Sale                  550             7.5262
Sale                  800             7.5250
Sale                2,400             7.5250
Sale                1,650             7.5250
Sale                  800             7.5250
Sale                  800             7.5250
Sale                1,300             7.5250
Sale                1,000             7.5250
Sale                  850             7.5250
Sale                  800             7.5250
Sale                1,650             7.5250
Sale                  600             7.5262
Sale                  600             7.5250
Sale                  500             7.5262
Sale                  550             7.5262
Sale                2,000             7.5250
Sale                  500             7.5250
Sale                1,500             7.5250
Sale                  900             7.5212
Sale                  436             7.5262
Sale                  800             7.5250
Sale                1,600             7.5262
Sale                  500             7.5262
Sale                  800             7.5262
Sale                  650             7.5250
Sale                1,650             7.5250
Sale                  800             7.5250
Sale                  600             7.5250
Sale                1,000             7.5250
Sale                  500             7.5262
Sale                1,150             7.5250
Sale                  400             7.5250
Sale                  750             7.5250
Sale                  450             7.5250
Sale                1,587             7.5250
Sale                1,000             7.5162
Sale                  800             7.5250
Sale                  550             7.5262
Sale                1,000             7.5212
Sale                1,700             7.5250
Sale                  525             7.5262
Sale                1,300             7.5250
Sale                  600             7.5250
Sale                  550             7.5262
Sale                  650             7.5250
Sale                4,100             7.5250
Sale                1,150             7.5250
Sale                1,800             7.5250
Sale                  800             7.5250
Sale                1,090             7.5250
Sale                1,650             7.5250
Sale                  850             7.5250
Sale                  911             7.5250
Sale                1,000             7.5162
Sale                  800             7.5250
Sale                2,287             7.5250
Sale                1,250             7.5250
Sale                  850             7.5250
Sale                1,150             7.5250
Sale                  356             7.5300
Sale                  800             7.5250
Sale                1,507             7.5250
Sale                  389             7.5263
Sale               33,904             7.5258
Sale                  750             7.5250
Sale                1,150             7.5250
Sale                  650             7.5250
Sale                1,681             7.5250
Sale                  600             7.5250
Sale                6,200             7.5250
Sale                1,400             7.5412
Sale                  183             7.5250
Sale              238,481             7.5266
Sale                3,000             7.5250
Sale                  500             7.5250
Sale                1,600             7.5262
Sale                  750             7.5265
Sale                  650             7.5250
Sale                  800             7.5250
Sale                  850             7.5250
Sale                  500             7.5215
Sale                  300             7.5212
Sale                  850             7.5250
Sale                  261             7.5462
Sale                1,650             7.5250
Sale                  980             7.5262
Sale                  550             7.5250
Sale                  800             7.5250
Sale                1,000             7.5362
Sale                2,500             7.5250
Sale                1,190             7.5250
Sale                1,250             7.5250
Sale                1,180             7.5262
Sale                  500             7.5250
Sale                  550             7.5250
Sale                  725             7.5262
Sale                  470             7.5262
Sale                  450             7.5250
Sale                  600             7.5250
Sale                  650             7.5250
Sale                1,000             7.5212
Sale                  625             7.5262
Sale                  850             7.5262
Sale                  500             7.5250
Sale                1,650             7.5250
Sale              327,950             7.4485
Sale                  250             7.5250
Sale                  470             7.5262
Sale                1,650             7.5250
Sale                  650             7.5250
Sale                  413             7.5250
Sale                  325             7.5212
Sale                3,300             7.5250
Sale                  425             7.5262
Sale                  725             7.5262
Sale                  630             7.5262
Sale                  500             7.5250
Sale                  500             7.5212
Sale                  750             7.5250
Sale                  800             7.5250
Sale                1,650             7.5250
Sale               46,000             7.5250
Sale                1,650             7.5250
Sale                  500             7.5212
Sale                  600             7.5250
Sale                  600             7.5250
Sale                  625             7.5262
Sale                2,000             7.5250
Sale                2,500             7.5250
Sale                  500             7.5212
Sale                1,000             7.5250
Sale                  800             7.5250

(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           3061              7.4764
CFD           Short           6239              7.5290
CFD           Short          24392              7.5297
CFD           Short          28700              7.5352
CFD           Short         258000              7.5387
CFD           Short          22000              7.5409
CFD           Long           33904              7.5257
CFD           Long            6746              7.5301

(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                         12 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