Blocklisting Interim Review

Wood Group (John) PLC
07 December 2005


                        BLOCK LISTING SIX MONTHLY RETURN


INFORMATION PROVIDED ON THIS FORM MUST BE TYPED OR PRINTED ELECTRONICALLY


To:      The FSA


Date:    7 December 2005



Name of applicant:                                    John Wood Group PLC

Name of scheme:                                       The John Wood Group PLC 1996 Unapproved Executive
                                                      Share Option Scheme

Period of return:                  From:              8 June 2005           To:       7 December 2005

Balance under scheme from previous return:            75,000 Ordinary Shares of 3 1/3 pence each

The amount by which the block scheme has been         Not applicable
increased, if the scheme has been increased since the
date of the last return:

Number of securities issued/allotted under scheme     0
during period:

Balance under scheme not yet issued/allotted at end   75,000 Ordinary Shares of 3 1/3 pence each
of period

Number and class of securities originally listed and     500,000   Ordinary Shares    18 DECEMBER 2002
the date of admission                                    405,000   Ordinary Shares      9 JUNE 2003
                                                         145,000   Ordinary Shares    26 JULY 2004

Total number of securities in issue at the end of the 515,237,930
period


Name of contact:                                        LORRAINE SPROULE

Address of contact:                                     John Wood House, Greenwell Road, Aberdeen

Telephone number of contact:                            01224 851041

SIGNED BY    IAN JOHNSON

             company secretary
             for and on behalf of


             JOHN WOOD GROUP PLC

             Name of applicant


If you knowingly or recklessly give false or misleading information you may be
liable to prosecution

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