| 
                 
                    Closing price on 7/20/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    32.50 | 
                 
                
                    | High | 
                    32.90 | 
                 
                
                    | Low | 
                    31.80 | 
                     
                
                    | Volume | 
                    83,950 | 
                                 
                
                    | Split-adjusted Price | 
                    7.90 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/20/2015
             | 
            
                -0.10 / -0.30%
             |             
            
                32.50
             |           
            
                32.90
             |               
            
                31.80
             |                           
            
                32.90
             | 
            
                32.05
             |                     
            
                7.90
             |                                 
            
                83,950
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2015
             | 
            
                +0.60 / +1.85%
             |             
            
                31.80
             |           
            
                33.00
             |               
            
                31.70
             |                           
            
                33.00
             | 
            
                32.11
             |                     
            
                7.93
             |                                 
            
                47,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2015
             | 
            
                +0.60 / +1.89%
             |             
            
                32.00
             |           
            
                32.40
             |               
            
                31.90
             |                           
            
                32.40
             | 
            
                31.98
             |                     
            
                7.78
             |                                 
            
                43,010
             |            
            
                 
             |                                       
         
    
        
            | 
                7/15/2015
             | 
            
                -0.20 / -0.63%
             |             
            
                32.10
             |           
            
                32.50
             |               
            
                31.80
             |                           
            
                31.80
             | 
            
                31.91
             |                     
            
                7.64
             |                                 
            
                44,250
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/14/2015
             | 
            
                -1.00 / -3.03%
             |             
            
                32.00
             |           
            
                32.10
             |               
            
                32.00
             |                           
            
                32.00
             | 
            
                32.03
             |                     
            
                7.69
             |                                 
            
                33,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2015
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.50
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                7.93
             |                                 
            
                12,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2015
             | 
            
                +0.60 / +1.85%
             |             
            
                32.40
             |           
            
                33.00
             |               
            
                32.00
             |                           
            
                33.00
             | 
            
                32.07
             |                     
            
                7.93
             |                                 
            
                61,220
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2015
             | 
            
                -1.00 / -2.99%
             |             
            
                33.40
             |           
            
                33.40
             |               
            
                32.40
             |                           
            
                32.40
             | 
            
                32.82
             |                     
            
                7.78
             |                                 
            
                145,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/8/2015
             | 
            
                -0.20 / -0.60%
             |             
            
                33.50
             |           
            
                33.60
             |               
            
                33.30
             |                           
            
                33.40
             | 
            
                33.46
             |                     
            
                8.02
             |                                 
            
                32,930
             |            
            
                 
             |                                       
         
    
        
            | 
                7/7/2015
             | 
            
                -0.10 / -0.30%
             |             
            
                33.70
             |           
            
                33.70
             |               
            
                33.50
             |                           
            
                33.60
             | 
            
                33.62
             |                     
            
                8.07
             |                                 
            
                31,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.60
             |           
            
                34.60
             |               
            
                33.60
             |                           
            
                33.70
             | 
            
                33.87
             |                     
            
                8.10
             |                                 
            
                32,500
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2015
             | 
            
                -0.40 / -1.17%
             |             
            
                33.90
             |           
            
                33.90
             |               
            
                33.70
             |                           
            
                33.70
             | 
            
                33.80
             |                     
            
                8.10
             |                                 
            
                25,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2015
             | 
            
                0.00 / 0.00%
             |             
            
                33.90
             |           
            
                34.10
             |               
            
                33.80
             |                           
            
                34.10
             | 
            
                33.87
             |                     
            
                8.19
             |                                 
            
                22,350
             |            
            
                 
             |                                       
         
    
        
            | 
                7/1/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.10
             |           
            
                34.20
             |               
            
                34.10
             |                           
            
                34.10
             | 
            
                34.13
             |                     
            
                8.19
             |                                 
            
                38,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/30/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.10
             |           
            
                34.70
             |               
            
                34.00
             |                           
            
                34.10
             | 
            
                34.14
             |                     
            
                8.19
             |                                 
            
                9,050
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2015
             | 
            
                -0.90 / -2.57%
             |             
            
                34.10
             |           
            
                34.10
             |               
            
                34.10
             |                           
            
                34.10
             | 
            
                34.10
             |                     
            
                8.19
             |                                 
            
                3,100
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2015
             | 
            
                +0.30 / +0.86%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                34.00
             |                           
            
                35.00
             | 
            
                34.40
             |                     
            
                8.41
             |                                 
            
                20,030
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2015
             | 
            
                +0.20 / +0.58%
             |             
            
                34.50
             |           
            
                35.00
             |               
            
                34.50
             |                           
            
                34.70
             | 
            
                34.76
             |                     
            
                8.34
             |                                 
            
                14,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/24/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.40
             |           
            
                35.00
             |               
            
                34.20
             |                           
            
                34.50
             | 
            
                34.54
             |                     
            
                8.29
             |                                 
            
                5,790
             |            
            
                 
             |                                       
         
    
        
            | 
                6/23/2015
             | 
            
                -0.10 / -0.29%
             |             
            
                34.70
             |           
            
                34.70
             |               
            
                34.20
             |                           
            
                34.50
             | 
            
                34.57
             |                     
            
                8.29
             |                                 
            
                4,860
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2015
             | 
            
                -0.10 / -0.29%
             |             
            
                34.80
             |           
            
                34.80
             |               
            
                34.40
             |                           
            
                34.60
             | 
            
                34.56
             |                     
            
                8.31
             |                                 
            
                5,180
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2015
             | 
            
                -0.10 / -0.29%
             |             
            
                34.80
             |           
            
                35.00
             |               
            
                34.70
             |                           
            
                34.70
             | 
            
                34.75
             |                     
            
                8.34
             |                                 
            
                3,540
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2015
             | 
            
                -0.20 / -0.57%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                34.80
             |                           
            
                34.80
             | 
            
                34.94
             |                     
            
                8.36
             |                                 
            
                4,780
             |            
            
                 
             |                                       
         
    
        
            | 
                6/17/2015
             | 
            
                0.00 / 0.00%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.00
             |                     
            
                8.41
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/16/2015
             | 
            
                +0.10 / +0.29%
             |             
            
                35.00
             |           
            
                35.00
             |               
            
                35.00
             |                           
            
                35.00
             | 
            
                35.00
             |                     
            
                8.41
             |                                 
            
                4,980
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2015
             | 
            
                +0.40 / +1.16%
             |             
            
                34.50
             |           
            
                35.00
             |               
            
                34.50
             |                           
            
                34.90
             | 
            
                34.59
             |                     
            
                8.39
             |                                 
            
                7,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.50
             |           
            
                34.50
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                34.50
             |                     
            
                8.29
             |                                 
            
                8,760
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2015
             | 
            
                0.00 / 0.00%
             |             
            
                34.50
             |           
            
                34.50
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                34.50
             |                     
            
                8.29
             |                                 
            
                8,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/10/2015
             | 
            
                -0.40 / -1.15%
             |             
            
                34.80
             |           
            
                35.40
             |               
            
                34.50
             |                           
            
                34.50
             | 
            
                34.65
             |                     
            
                8.29
             |                                 
            
                7,850
             |            
            
                 
             |                                       
         
    
        
            | 
                6/9/2015
             | 
            
                -0.20 / -0.57%
             |             
            
                35.10
             |           
            
                35.10
             |               
            
                33.10
             |                           
            
                34.90
             | 
            
                35.04
             |                     
            
                8.39
             |                                 
            
                4,480
             |  
            
                 
             |                                                              
             
    
         
    
    
 |