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 1994 Approved Executive Share
                                                      Option Scheme

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

Balance under scheme from previous return:            968,901 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     120,000
during period:

Balance under scheme not yet issued/allotted at end   848,901 Ordinary Shares of 3 1/3 pence each
of period

Number and class of securities originally listed and     757,861   Ordinary Shares    18 DECEMBER 2002
the date of admission                                  1,250,000   Ordinary Shares    19 DECEMBER 2002
                                                         704,570   Ordinary Shares    9 JUNE 2003
                                                       1,114,510   Ordinary Shares    11 JUNE 2003

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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            The company news service from the London Stock Exchange