| 
                 
                    Closing price on 7/18/2012
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    9.60 | 
                 
                
                    | High | 
                    9.60 | 
                 
                
                    | Low | 
                    9.20 | 
                     
                
                    | Volume | 
                    3,546,026 | 
                                 
                
                    | Split-adjusted Price | 
                    9.20 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
PVX Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/18/2012
             | 
            
                -0.30 / -3.16%
             |             
            
                9.60
             |           
            
                9.60
             |               
            
                9.20
             |                           
            
                9.20
             | 
            
                9.36
             |                     
            
                9.20
             |                                 
            
                3,546,026
             |            
            
                 
             |                                       
         
    
        
            | 
                7/17/2012
             | 
            
                +0.30 / +3.26%
             |             
            
                9.20
             |           
            
                9.70
             |               
            
                9.10
             |                           
            
                9.50
             | 
            
                9.46
             |                     
            
                9.50
             |                                 
            
                3,679,022
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/16/2012
             | 
            
                -0.30 / -3.16%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.10
             |                           
            
                9.20
             | 
            
                9.36
             |                     
            
                9.20
             |                                 
            
                2,046,250
             |            
            
                 
             |                                       
         
    
        
            | 
                7/13/2012
             | 
            
                +0.20 / +2.15%
             |             
            
                9.40
             |           
            
                9.70
             |               
            
                9.30
             |                           
            
                9.50
             | 
            
                9.53
             |                     
            
                9.50
             |                                 
            
                5,500,459
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/12/2012
             | 
            
                +0.30 / +3.33%
             |             
            
                9.20
             |           
            
                9.40
             |               
            
                9.00
             |                           
            
                9.30
             | 
            
                9.15
             |                     
            
                9.30
             |                                 
            
                4,392,254
             |            
            
                 
             |                                       
         
    
        
            | 
                7/11/2012
             | 
            
                +0.10 / +1.12%
             |             
            
                8.90
             |           
            
                9.10
             |               
            
                8.80
             |                           
            
                9.00
             | 
            
                9.01
             |                     
            
                9.00
             |                                 
            
                1,336,952
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/10/2012
             | 
            
                0.00 / 0.00%
             |             
            
                8.90
             |           
            
                9.00
             |               
            
                8.70
             |                           
            
                8.90
             | 
            
                8.89
             |                     
            
                8.90
             |                                 
            
                2,886,473
             |            
            
                 
             |                                       
         
    
        
            | 
                7/9/2012
             | 
            
                -0.40 / -4.30%
             |             
            
                9.30
             |           
            
                9.30
             |               
            
                8.80
             |                           
            
                8.90
             | 
            
                8.94
             |                     
            
                8.90
             |                                 
            
                2,409,815
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/6/2012
             | 
            
                -0.10 / -1.06%
             |             
            
                9.40
             |           
            
                9.70
             |               
            
                9.20
             |                           
            
                9.30
             | 
            
                9.44
             |                     
            
                9.30
             |                                 
            
                3,187,780
             |            
            
                 
             |                                       
         
    
        
            | 
                7/5/2012
             | 
            
                +0.70 / +8.05%
             |             
            
                8.50
             |           
            
                9.40
             |               
            
                8.50
             |                           
            
                9.40
             | 
            
                9.07
             |                     
            
                9.40
             |                                 
            
                3,660,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/4/2012
             | 
            
                -0.50 / -5.43%
             |             
            
                9.10
             |           
            
                9.20
             |               
            
                8.60
             |                           
            
                8.70
             | 
            
                8.92
             |                     
            
                8.70
             |                                 
            
                2,908,398
             |            
            
                 
             |                                       
         
    
        
            | 
                7/3/2012
             | 
            
                -0.20 / -2.13%
             |             
            
                9.20
             |           
            
                9.40
             |               
            
                8.80
             |                           
            
                9.20
             | 
            
                9.04
             |                     
            
                9.20
             |                                 
            
                3,695,089
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/2/2012
             | 
            
                -0.20 / -2.08%
             |             
            
                9.60
             |           
            
                9.80
             |               
            
                9.20
             |                           
            
                9.40
             | 
            
                9.42
             |                     
            
                9.40
             |                                 
            
                2,180,335
             |            
            
                 
             |                                       
         
    
        
            | 
                6/29/2012
             | 
            
                -0.10 / -1.03%
             |             
            
                9.70
             |           
            
                9.70
             |               
            
                9.50
             |                           
            
                9.60
             | 
            
                9.65
             |                     
            
                9.60
             |                                 
            
                1,644,915
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/28/2012
             | 
            
                +0.30 / +3.19%
             |             
            
                9.40
             |           
            
                9.80
             |               
            
                9.20
             |                           
            
                9.70
             | 
            
                9.46
             |                     
            
                9.70
             |                                 
            
                3,443,562
             |            
            
                 
             |                                       
         
    
        
            | 
                6/27/2012
             | 
            
                -0.20 / -2.08%
             |             
            
                9.60
             |           
            
                9.80
             |               
            
                9.40
             |                           
            
                9.40
             | 
            
                9.60
             |                     
            
                9.40
             |                                 
            
                3,976,871
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/26/2012
             | 
            
                -0.20 / -2.04%
             |             
            
                9.80
             |           
            
                9.90
             |               
            
                9.40
             |                           
            
                9.60
             | 
            
                9.59
             |                     
            
                9.60
             |                                 
            
                3,966,756
             |            
            
                 
             |                                       
         
    
        
            | 
                6/25/2012
             | 
            
                -0.20 / -2.00%
             |             
            
                10.00
             |           
            
                10.20
             |               
            
                9.60
             |                           
            
                9.80
             | 
            
                9.89
             |                     
            
                9.80
             |                                 
            
                3,538,849
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/22/2012
             | 
            
                -0.20 / -1.96%
             |             
            
                10.10
             |           
            
                10.20
             |               
            
                9.90
             |                           
            
                10.00
             | 
            
                10.05
             |                     
            
                10.00
             |                                 
            
                5,071,184
             |            
            
                 
             |                                       
         
    
        
            | 
                6/21/2012
             | 
            
                -0.20 / -1.92%
             |             
            
                10.40
             |           
            
                10.40
             |               
            
                10.10
             |                           
            
                10.20
             | 
            
                10.27
             |                     
            
                10.20
             |                                 
            
                3,467,516
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/20/2012
             | 
            
                +0.10 / +0.97%
             |             
            
                10.00
             |           
            
                10.50
             |               
            
                10.00
             |                           
            
                10.40
             | 
            
                10.38
             |                     
            
                10.40
             |                                 
            
                2,669,046
             |            
            
                 
             |                                       
         
    
        
            | 
                6/19/2012
             | 
            
                -0.30 / -2.83%
             |             
            
                10.90
             |           
            
                10.90
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.38
             |                     
            
                10.30
             |                                 
            
                3,978,265
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/18/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.80
             |           
            
                11.10
             |               
            
                10.50
             |                           
            
                10.60
             | 
            
                10.79
             |                     
            
                10.60
             |                                 
            
                5,090,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/15/2012
             | 
            
                +0.10 / +0.95%
             |             
            
                10.40
             |           
            
                10.80
             |               
            
                10.40
             |                           
            
                10.60
             | 
            
                10.61
             |                     
            
                10.60
             |                                 
            
                8,963,450
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/14/2012
             | 
            
                +0.10 / +0.96%
             |             
            
                10.40
             |           
            
                10.50
             |               
            
                10.30
             |                           
            
                10.50
             | 
            
                10.41
             |                     
            
                10.50
             |                                 
            
                5,435,572
             |            
            
                 
             |                                       
         
    
        
            | 
                6/13/2012
             | 
            
                -0.10 / -0.95%
             |             
            
                10.50
             |           
            
                10.60
             |               
            
                10.30
             |                           
            
                10.40
             | 
            
                10.40
             |                     
            
                10.40
             |                                 
            
                6,911,075
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/12/2012
             | 
            
                -0.30 / -2.78%
             |             
            
                10.80
             |           
            
                10.90
             |               
            
                10.40
             |                           
            
                10.50
             | 
            
                10.65
             |                     
            
                10.50
             |                                 
            
                5,215,738
             |            
            
                 
             |                                       
         
    
        
            | 
                6/11/2012
             | 
            
                +0.50 / +4.85%
             |             
            
                10.20
             |           
            
                11.00
             |               
            
                10.20
             |                           
            
                10.80
             | 
            
                10.80
             |                     
            
                10.80
             |                                 
            
                15,839,646
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/8/2012
             | 
            
                0.00 / 0.00%
             |             
            
                10.50
             |           
            
                11.00
             |               
            
                10.20
             |                           
            
                10.30
             | 
            
                10.60
             |                     
            
                10.30
             |                                 
            
                8,236,633
             |            
            
                 
             |                                       
         
    
        
            | 
                6/7/2012
             | 
            
                +0.70 / +7.29%
             |             
            
                9.70
             |           
            
                10.30
             |               
            
                9.70
             |                           
            
                10.30
             | 
            
                10.22
             |                     
            
                10.30
             |                                 
            
                12,014,108
             |  
            
                 
             |                                                              
             
    
         
    
    
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