| 
                 
                    Closing price on 8/18/2015
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    32.20 | 
                 
                
                    | High | 
                    33.00 | 
                 
                
                    | Low | 
                    32.10 | 
                     
                
                    | Volume | 
                    1,260 | 
                                 
                
                    | Split-adjusted Price | 
                    7.93 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
OPC Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                8/18/2015
             | 
            
                +0.80 / +2.48%
             |             
            
                32.20
             |           
            
                33.00
             |               
            
                32.10
             |                           
            
                33.00
             | 
            
                32.54
             |                     
            
                7.93
             |                                 
            
                1,260
             |            
            
                 
             |                                       
         
    
        
            | 
                8/17/2015
             | 
            
                -0.10 / -0.31%
             |             
            
                32.20
             |           
            
                32.20
             |               
            
                32.20
             |                           
            
                32.20
             | 
            
                32.20
             |                     
            
                7.74
             |                                 
            
                200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/14/2015
             | 
            
                -0.30 / -0.92%
             |             
            
                32.00
             |           
            
                32.60
             |               
            
                32.00
             |                           
            
                32.30
             | 
            
                32.36
             |                     
            
                7.76
             |                                 
            
                8,900
             |            
            
                 
             |                                       
         
    
        
            | 
                8/13/2015
             | 
            
                0.00 / 0.00%
             |             
            
                32.40
             |           
            
                32.60
             |               
            
                32.40
             |                           
            
                32.60
             | 
            
                32.50
             |                     
            
                7.83
             |                                 
            
                5,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/12/2015
             | 
            
                -0.20 / -0.61%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.60
             |                           
            
                32.60
             | 
            
                32.81
             |                     
            
                7.83
             |                                 
            
                10,210
             |            
            
                 
             |                                       
         
    
        
            | 
                8/11/2015
             | 
            
                0.00 / 0.00%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                7.88
             |                                 
            
                8,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/10/2015
             | 
            
                0.00 / 0.00%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                7.88
             |                                 
            
                100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/7/2015
             | 
            
                -0.20 / -0.61%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                7.88
             |                                 
            
                2,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/6/2015
             | 
            
                +0.20 / +0.61%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                33.00
             |                           
            
                33.00
             | 
            
                33.00
             |                     
            
                7.93
             |                                 
            
                42,800
             |            
            
                 
             |                                       
         
    
        
            | 
                8/5/2015
             | 
            
                0.00 / 0.00%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.80
             |                     
            
                7.88
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/4/2015
             | 
            
                +0.10 / +0.31%
             |             
            
                32.80
             |           
            
                32.80
             |               
            
                32.70
             |                           
            
                32.80
             | 
            
                32.78
             |                     
            
                7.88
             |                                 
            
                34,620
             |            
            
                 
             |                                       
         
    
        
            | 
                8/3/2015
             | 
            
                -0.10 / -0.30%
             |             
            
                32.60
             |           
            
                32.70
             |               
            
                32.60
             |                           
            
                32.70
             | 
            
                32.65
             |                     
            
                7.86
             |                                 
            
                370
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/31/2015
             | 
            
                -0.20 / -0.61%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.90
             |                     
            
                7.88
             |                                 
            
                4,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/30/2015
             | 
            
                +0.20 / +0.61%
             |             
            
                32.80
             |           
            
                33.00
             |               
            
                32.80
             |                           
            
                33.00
             | 
            
                32.98
             |                     
            
                7.93
             |                                 
            
                39,110
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/29/2015
             | 
            
                0.00 / 0.00%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.90
             |                     
            
                7.88
             |                                 
            
                3,020
             |            
            
                 
             |                                       
         
    
        
            | 
                7/28/2015
             | 
            
                +0.20 / +0.61%
             |             
            
                33.00
             |           
            
                33.00
             |               
            
                32.80
             |                           
            
                32.80
             | 
            
                32.87
             |                     
            
                7.88
             |                                 
            
                4,290
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/27/2015
             | 
            
                +0.40 / +1.24%
             |             
            
                32.20
             |           
            
                32.60
             |               
            
                32.20
             |                           
            
                32.60
             | 
            
                32.40
             |                     
            
                7.83
             |                                 
            
                910
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2015
             | 
            
                -0.20 / -0.62%
             |             
            
                32.50
             |           
            
                33.00
             |               
            
                32.20
             |                           
            
                32.20
             | 
            
                32.48
             |                     
            
                7.74
             |                                 
            
                2,830
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2015
             | 
            
                +0.60 / +1.89%
             |             
            
                31.90
             |           
            
                32.40
             |               
            
                31.80
             |                           
            
                32.40
             | 
            
                31.81
             |                     
            
                7.78
             |                                 
            
                22,510
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2015
             | 
            
                0.00 / 0.00%
             |             
            
                31.80
             |           
            
                32.00
             |               
            
                31.80
             |                           
            
                31.80
             | 
            
                31.81
             |                     
            
                7.64
             |                                 
            
                20,120
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/21/2015
             | 
            
                -1.10 / -3.34%
             |             
            
                32.90
             |           
            
                32.90
             |               
            
                31.80
             |                           
            
                31.80
             | 
            
                31.87
             |                     
            
                7.64
             |                                 
            
                126,010
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
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