Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

Information provided on this form must be typed or printed electronically.

To: The FSA

Date: 6 August 2009

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:     13 December     To:    6 August 2009    
                                       2008                                    
                                                                               
Balance under scheme from previous     270,111 shares                          
return:                                                                        
                                                                               
The amount by which the block scheme   0 shares                                
has been increased, if the scheme has                                          
been increased since the date of the                                           
last return:                                                                   
                                                                               
Number of securities issued/allotted   0 shares                                
under scheme during period:                                                    
                                                                               
Balance under scheme not yet issued/   270,111 shares                          
allotted at end of period                                                      
                                                                               
Number and class of securities         2,007,861 Ordinary shares - Dec 2002    
originally listed and the date of      1,819,080 Ordinary shares - June 2003   
admission                                                                      
                                                                               
Total number of securities in issue at 527,836,720                             
the end of the 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



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.