| 
                 
                    Closing price on 1/16/2007
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    27.10 | 
                 
                
                    | High | 
                    28.80 | 
                 
                
                    | Low | 
                    27.00 | 
                     
                
                    | Volume | 
                    8,000 | 
                                 
                
                    | Split-adjusted Price | 
                    1.79 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                1/16/2007
             | 
            
                0.00 / 0.00%
             |             
            
                27.10
             |           
            
                28.80
             |               
            
                27.00
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                1.79
             |                                 
            
                8,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/15/2007
             | 
            
                +2.00 / +7.69%
             |             
            
                26.40
             |           
            
                28.00
             |               
            
                26.40
             |                           
            
                28.00
             | 
            
                28.00
             |                     
            
                1.79
             |                                 
            
                13,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/12/2007
             | 
            
                0.00 / 0.00%
             |             
            
                26.00
             |           
            
                27.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                1.67
             |                                 
            
                19,500
             |            
            
                 
             |                                       
         
    
        
            | 
                1/11/2007
             | 
            
                +0.50 / +1.96%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                26.00
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                1.67
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/10/2007
             | 
            
                0.00 / 0.00%
             |             
            
                25.50
             |           
            
                27.40
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                7,900
             |            
            
                 
             |                                       
         
    
        
            | 
                1/9/2007
             | 
            
                -1.40 / -5.20%
             |             
            
                25.00
             |           
            
                25.50
             |               
            
                25.00
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                2,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/8/2007
             | 
            
                0.00 / 0.00%
             |             
            
                26.90
             |           
            
                26.90
             |               
            
                26.90
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                1.72
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                1/5/2007
             | 
            
                0.00 / 0.00%
             |             
            
                26.90
             |           
            
                27.10
             |               
            
                26.00
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                1.72
             |                                 
            
                13,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/4/2007
             | 
            
                +0.20 / +0.75%
             |             
            
                26.90
             |           
            
                26.90
             |               
            
                26.90
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                1.72
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                1/3/2007
             | 
            
                +1.20 / +4.71%
             |             
            
                25.50
             |           
            
                27.00
             |               
            
                25.20
             |                           
            
                26.70
             | 
            
                26.70
             |                     
            
                1.71
             |                                 
            
                2,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                1/2/2007
             | 
            
                0.00 / 0.00%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/29/2006
             | 
            
                -1.70 / -6.25%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                1,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/28/2006
             | 
            
                +1.70 / +6.67%
             |             
            
                27.30
             |           
            
                27.30
             |               
            
                25.00
             |                           
            
                27.20
             | 
            
                27.20
             |                     
            
                1.74
             |                                 
            
                5,100
             |            
            
                 
             |                                       
         
    
        
            | 
                12/27/2006
             | 
            
                +0.50 / +2.00%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                23.90
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                7,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/26/2006
             | 
            
                -0.20 / -0.79%
             |             
            
                25.00
             |           
            
                25.00
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                1.60
             |                                 
            
                2,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/25/2006
             | 
            
                0.00 / 0.00%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                1.61
             |                                 
            
                0
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/22/2006
             | 
            
                +0.50 / +2.02%
             |             
            
                25.20
             |           
            
                25.20
             |               
            
                25.20
             |                           
            
                25.20
             | 
            
                25.20
             |                     
            
                1.61
             |                                 
            
                1,000
             |            
            
                 
             |                                       
         
    
        
            | 
                12/21/2006
             | 
            
                -0.20 / -0.80%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                24.70
             |                           
            
                24.70
             | 
            
                24.70
             |                     
            
                1.58
             |                                 
            
                3,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/20/2006
             | 
            
                +0.10 / +0.40%
             |             
            
                24.90
             |           
            
                24.90
             |               
            
                24.90
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                1.59
             |                                 
            
                0
             |            
            
                 
             |                                       
         
    
        
            | 
                12/19/2006
             | 
            
                -0.10 / -0.40%
             |             
            
                24.90
             |           
            
                25.00
             |               
            
                24.80
             |                           
            
                24.80
             | 
            
                24.80
             |                     
            
                1.59
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/18/2006
             | 
            
                -0.10 / -0.40%
             |             
            
                24.70
             |           
            
                25.00
             |               
            
                24.00
             |                           
            
                24.90
             | 
            
                24.90
             |                     
            
                1.59
             |                                 
            
                2,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/15/2006
             | 
            
                -1.00 / -3.85%
             |             
            
                25.50
             |           
            
                25.50
             |               
            
                25.00
             |                           
            
                25.00
             | 
            
                25.00
             |                     
            
                1.60
             |                                 
            
                5,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/14/2006
             | 
            
                +0.70 / +2.77%
             |             
            
                26.10
             |           
            
                26.10
             |               
            
                25.30
             |                           
            
                26.00
             | 
            
                26.00
             |                     
            
                1.67
             |                                 
            
                9,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/13/2006
             | 
            
                -0.30 / -1.17%
             |             
            
                25.30
             |           
            
                25.50
             |               
            
                25.30
             |                           
            
                25.30
             | 
            
                25.30
             |                     
            
                1.62
             |                                 
            
                1,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/12/2006
             | 
            
                -0.10 / -0.39%
             |             
            
                25.50
             |           
            
                25.70
             |               
            
                25.50
             |                           
            
                25.60
             | 
            
                25.60
             |                     
            
                1.64
             |                                 
            
                1,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/11/2006
             | 
            
                +0.20 / +0.78%
             |             
            
                26.00
             |           
            
                26.00
             |               
            
                25.00
             |                           
            
                25.70
             | 
            
                25.70
             |                     
            
                1.65
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/8/2006
             | 
            
                -0.30 / -1.16%
             |             
            
                25.50
             |           
            
                26.10
             |               
            
                25.50
             |                           
            
                25.50
             | 
            
                25.50
             |                     
            
                1.63
             |                                 
            
                18,500
             |            
            
                 
             |                                       
         
    
        
            | 
                12/7/2006
             | 
            
                -1.10 / -4.09%
             |             
            
                25.40
             |           
            
                26.00
             |               
            
                25.40
             |                           
            
                25.80
             | 
            
                25.80
             |                     
            
                1.65
             |                                 
            
                6,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                12/6/2006
             | 
            
                -0.60 / -2.18%
             |             
            
                27.50
             |           
            
                27.50
             |               
            
                26.80
             |                           
            
                26.90
             | 
            
                26.90
             |                     
            
                1.72
             |                                 
            
                4,800
             |            
            
                 
             |                                       
         
    
        
            | 
                12/5/2006
             | 
            
                +0.10 / +0.36%
             |             
            
                27.80
             |           
            
                28.00
             |               
            
                27.00
             |                           
            
                27.50
             | 
            
                27.50
             |                     
            
                1.76
             |                                 
            
                10,200
             |  
            
                 
             |                                                              
             
    
         
    
    
 |