Blocklisting - Interim Review

BLOCK LISTING SIX MONTHLY RETURN                        

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

To: The FSA

Date: ___3 July_______2006__

Name of applicant:                     Oxford Instruments plc                  
                                                                               
Name of scheme:                        Save As You Earn Share Option Scheme    
                                                                               
Period of return:            From:     01/01/06        To:    30/06/06         
                                                                               
Balance under scheme from previous     90,964                                  
return:                                                                        
                                                                               
The amount by which the block scheme   N/A                                     
has been increased, if the scheme has                                          
been increased since the date of the                                           
last return:                                                                   
                                                                               
Number of securities issued/allotted   90,964                                  
under scheme during period:                                                    
                                                                               
Balance under scheme not yet issued/   Nil                                     
allotted at end of period                                                      
                                                                               
Number and class of securities         400,000 Ordinary Shares 12/01/04        
originally listed and the date of                                              
admission                                                                      
                                                                               
Total number of securities in issue at 48,743,642                              
the end of the period                                                          

Name of contact:                        Jo Young                               
                                                                               
Address of contact:                     Old Station Way, Eynsham, Witney Oxon  
                                        OX29 4TL                               
                                                                               
Telephone number of contact:            01865 884676                           

SIGNED BY __Jo Young____________________________________________

Director/company secretary/suitably experienced employee/duly authorised
officer,

for and on behalf of

___Oxford Instruments plc____________________________________________

Name of applicant

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