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 2000 Unapproved Executive
                                                      Share Option Scheme

Period of return:                  From:              16 June 2005          To:       7 December 2005

Balance under scheme from previous return:            Not applicable

The amount by which the block scheme has been         3,500,001 shares
increased, if the scheme has been increased since the
date of the last return:

Number of securities issued/allotted under scheme     2,798,661
during period:

Balance under scheme not yet issued/allotted at end   701,340 Ordinary Shares of 3 1/3  pence each
of period

Number and class of securities originally listed and  1,166,667   Ordinary Shares      16 June 2005
the date of admission                                 1,166,667   Ordinary Shares      17 June 2005
                                                      1,166,667   Ordinary Shares      20 June 2005

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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