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: 03 January 2013

Name of applicant:             Oxford Instruments plc                           
                                                                               
Period of return:     From:    1 July 2012           To:  31 December 2012      
                                                                               
Name of scheme:                ESO Scheme      Save As You Earn  Senior         
                               (A3274711995)   Share Option      Executive      
                                               Scheme            Long-Term      
                                                                 Incentive      
                                                                 Scheme (SELTIS)
                                                                               
Balance of unallotted          370,645         3,669             0              
securities under scheme(s)                                                     
from previous return:                                                          
                                                                               
Plus: The amount by which the  415,000         N/A               280,000        
block scheme(s) has been                                                       
increased since the date of                                                    
the last return (if any                                                        
increase has been applied                                                      
for):                                                                          
                                                                               
Less: Number of securities     431,025         1,893             160,000        
issued/allotted under scheme                                                   
(s) during period (see                                                         
LR3.5.7G):                                                                     
                                                                               
Equals: Balance under scheme   354,620         1,776             120,000        
(s) not yet issued/allotted                                                    
at end of period:                                                              
                                                                               
Note:                                          This block                       
                                               listing is no                    
                                               longer required                  
                                               as all options                   
                                               have been                        
                                               exercised and the                
                                               scheme is now                    
                                               closed.                          
 
Name of contact:                        Susan Johnson-Brett                    
                                                                               
Telephone number of contact:            01865 393324