Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically and
provided to an ris.

Date: 1 July………..2011

Name of applicant:                     John Wood Group PLC                     
                                                                               
Name of scheme:                        The John Wood Group PLC 2002 Approved   
                                       Executive Share Option Scheme           
                                                                               
Period of return:            From:     2 December 2010 To:    1 July 2011      
                                                                               
Balance of unallotted securities under 2,613,792 shares                        
scheme(s) from previous return:                                                
                                                                               
Plus: The amount by which the block    0                                       
scheme(s) has been increased since the                                         
date of the last return (if any                                                
increase has been applied for):                                                
                                                                               
Less: Number of securities issued/     0                                       
allotted under scheme(s) during period                                         
(see LR3.5.7G):                                                                
                                                                               
Equals: Balance under scheme(s) not    2,613,792                               
yet issued/allotted at end of period:                                          

Name of contact:                        Robert M.B Brown                       
                                                                               
Telephone number of contact:            01224 851000