| 
                 
                    Closing price on 9/30/2009
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    58.50 | 
                 
                
                    | High | 
                    58.50 | 
                 
                
                    | Low | 
                    56.00 | 
                     
                
                    | Volume | 
                    89,030 | 
                                 
                
                    | Split-adjusted Price | 
                    4.59 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/30/2009
             | 
            
                -0.50 / -0.85%
             |             
            
                58.50
             |           
            
                58.50
             |               
            
                56.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                4.59
             |                                 
            
                89,030
             |            
            
                 
             |                                       
         
    
        
            | 
                9/29/2009
             | 
            
                +0.50 / +0.86%
             |             
            
                58.00
             |           
            
                58.50
             |               
            
                57.00
             |                           
            
                58.50
             | 
            
                58.50
             |                     
            
                4.63
             |                                 
            
                55,510
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/28/2009
             | 
            
                +1.50 / +2.65%
             |             
            
                59.00
             |           
            
                59.00
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.00
             |                     
            
                4.59
             |                                 
            
                118,040
             |            
            
                 
             |                                       
         
    
        
            | 
                9/25/2009
             | 
            
                +2.50 / +4.63%
             |             
            
                56.50
             |           
            
                56.50
             |               
            
                55.00
             |                           
            
                56.50
             | 
            
                56.50
             |                     
            
                4.47
             |                                 
            
                172,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/24/2009
             | 
            
                +2.50 / +4.85%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                4.28
             |                                 
            
                102,690
             |            
            
                 
             |                                       
         
    
        
            | 
                9/23/2009
             | 
            
                +0.50 / +0.98%
             |             
            
                52.50
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                4.08
             |                                 
            
                6,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/22/2009
             | 
            
                -1.00 / -1.92%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.00
             |                           
            
                51.00
             | 
            
                51.00
             |                     
            
                4.04
             |                                 
            
                24,150
             |            
            
                 
             |                                       
         
    
        
            | 
                9/21/2009
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                52.50
             |               
            
                51.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                10,190
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/18/2009
             | 
            
                0.00 / 0.00%
             |             
            
                52.50
             |           
            
                52.50
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                3,570
             |            
            
                 
             |                                       
         
    
        
            | 
                9/17/2009
             | 
            
                0.00 / 0.00%
             |             
            
                51.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                3,340
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/16/2009
             | 
            
                +0.50 / +0.97%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                16,240
             |            
            
                 
             |                                       
         
    
        
            | 
                9/15/2009
             | 
            
                -1.50 / -2.83%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                51.50
             | 
            
                51.50
             |                     
            
                4.08
             |                                 
            
                11,620
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/14/2009
             | 
            
                +0.50 / +0.95%
             |             
            
                52.00
             |           
            
                53.50
             |               
            
                51.50
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                4.20
             |                                 
            
                9,820
             |            
            
                 
             |                                       
         
    
        
            | 
                9/11/2009
             | 
            
                -0.50 / -0.94%
             |             
            
                52.00
             |           
            
                53.50
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                4.16
             |                                 
            
                6,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/10/2009
             | 
            
                +0.50 / +0.95%
             |             
            
                52.50
             |           
            
                53.00
             |               
            
                52.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                4.20
             |                                 
            
                11,040
             |            
            
                 
             |                                       
         
    
        
            | 
                9/9/2009
             | 
            
                -1.00 / -1.87%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                52.00
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                4.16
             |                                 
            
                10,610
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/8/2009
             | 
            
                0.00 / 0.00%
             |             
            
                54.50
             |           
            
                54.50
             |               
            
                53.50
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                4.24
             |                                 
            
                6,140
             |            
            
                 
             |                                       
         
    
        
            | 
                9/7/2009
             | 
            
                +2.50 / +4.90%
             |             
            
                51.00
             |           
            
                53.50
             |               
            
                50.00
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                4.24
             |                                 
            
                24,820
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/4/2009
             | 
            
                -2.00 / -3.77%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                51.00
             | 
            
                51.00
             |                     
            
                4.04
             |                                 
            
                8,260
             |            
            
                 
             |                                       
         
    
        
            | 
                9/3/2009
             | 
            
                -1.00 / -1.85%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                52.50
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                4.20
             |                                 
            
                9,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/1/2009
             | 
            
                -1.00 / -1.82%
             |             
            
                53.00
             |           
            
                54.50
             |               
            
                53.00
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                4.28
             |                                 
            
                12,130
             |            
            
                 
             |                                       
         
    
        
            | 
                8/31/2009
             | 
            
                +1.50 / +2.80%
             |             
            
                53.50
             |           
            
                55.00
             |               
            
                53.00
             |                           
            
                55.00
             | 
            
                55.00
             |                     
            
                4.36
             |                                 
            
                52,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/28/2009
             | 
            
                +1.50 / +2.88%
             |             
            
                53.00
             |           
            
                53.50
             |               
            
                52.00
             |                           
            
                53.50
             | 
            
                53.50
             |                     
            
                4.24
             |                                 
            
                35,920
             |            
            
                 
             |                                       
         
    
        
            | 
                8/27/2009
             | 
            
                0.00 / 0.00%
             |             
            
                52.00
             |           
            
                52.00
             |               
            
                51.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                15,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/26/2009
             | 
            
                -0.50 / -0.95%
             |             
            
                50.00
             |           
            
                52.50
             |               
            
                50.00
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.12
             |                                 
            
                7,150
             |            
            
                 
             |                                       
         
    
        
            | 
                8/25/2009
             | 
            
                -1.50 / -2.78%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                52.50
             |                           
            
                52.50
             | 
            
                52.50
             |                     
            
                4.16
             |                                 
            
                12,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/24/2009
             | 
            
                +1.00 / +1.89%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                53.50
             |                           
            
                54.00
             | 
            
                54.00
             |                     
            
                4.28
             |                                 
            
                33,410
             |            
            
                 
             |                                       
         
    
        
            | 
                8/21/2009
             | 
            
                0.00 / 0.00%
             |             
            
                53.00
             |           
            
                53.50
             |               
            
                52.50
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                4.20
             |                                 
            
                31,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/20/2009
             | 
            
                +1.00 / +1.92%
             |             
            
                52.00
             |           
            
                53.00
             |               
            
                51.00
             |                           
            
                53.00
             | 
            
                53.00
             |                     
            
                4.20
             |                                 
            
                51,230
             |            
            
                 
             |                                       
         
    
        
            | 
                8/19/2009
             | 
            
                +0.50 / +0.97%
             |             
            
                53.00
             |           
            
                53.00
             |               
            
                51.50
             |                           
            
                52.00
             | 
            
                52.00
             |                     
            
                4.04
             |                                 
            
                14,330
             |  
            
                 
             |                                                              
             
    
         
    
    
 |