Rule 8.3 - AMEC

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              AMEC
Class of relevant security    ORD GBP0.50
to which the dealings being
disclosed relate (Note 2)
Date of dealing               06 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        12,753,828    3.82%     2,330,813      0.70%
securities
(2) Derivatives      1,139,482    0.34%     2,275,659      0.68%
(other than
options)
(3) Options and              0    0.00%             0      0.00%
agreements to
purchase/sell

Total               13,893,310    4.17%     4,606,472      1.38%


(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      1,614                Transfer
Purchase      11,300               4.1608
Purchase      4,308                Transfer
Purchase      12,793               4.1953
Purchase      10,052               Transfer
Purchase      20,300               4.1718
Purchase      5,301                4.1114
Sale          750                  4.1912
Sale          1,247                4.2186
Sale          12,252               4.1292

 (b) Derivatives transactions (other than options)

Product name,   Long/Short       Number of       Price per unit
(e.g. CFD)      (Note 6)         Securities      (GBP)
CFD             Short            5301            4.1113
CFD             Short            11300           4.1608
CFD             Short            20300           4.1717
CFD             Short            12793           4.1953
CFD             Long             12252           4.1291
CFD             Long            12793            4.1954
CFD             Long            1247             4.2186


(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                         07 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