| 
                 
                    Closing price on 10/13/2008
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    20.10 | 
                 
                
                    | High | 
                    21.50 | 
                 
                
                    | Low | 
                    18.70 | 
                     
                
                    | Volume | 
                    49,800 | 
                                 
                
                    | Split-adjusted Price | 
                    2.47 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
STP Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                10/13/2008
             | 
            
                -0.10 / -0.50%
             |             
            
                20.10
             |           
            
                21.50
             |               
            
                18.70
             |                           
            
                20.00
             | 
            
                20.06
             |                     
            
                2.47
             |                                 
            
                49,800
             |            
            
                 
             |                                       
         
    
        
            | 
                10/10/2008
             | 
            
                -1.40 / -6.51%
             |             
            
                20.10
             |           
            
                20.10
             |               
            
                20.10
             |                           
            
                20.10
             | 
            
                20.10
             |                     
            
                2.49
             |                                 
            
                6,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/9/2008
             | 
            
                -0.80 / -3.59%
             |             
            
                20.80
             |           
            
                23.30
             |               
            
                20.80
             |                           
            
                21.50
             | 
            
                21.62
             |                     
            
                2.66
             |                                 
            
                93,700
             |            
            
                 
             |                                       
         
    
        
            | 
                10/8/2008
             | 
            
                -1.60 / -6.69%
             |             
            
                22.30
             |           
            
                22.70
             |               
            
                22.30
             |                           
            
                22.30
             | 
            
                22.31
             |                     
            
                2.76
             |                                 
            
                91,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/7/2008
             | 
            
                -1.50 / -5.91%
             |             
            
                23.90
             |           
            
                23.90
             |               
            
                23.90
             |                           
            
                23.90
             | 
            
                23.90
             |                     
            
                2.96
             |                                 
            
                16,300
             |            
            
                 
             |                                       
         
    
        
            | 
                10/6/2008
             | 
            
                -2.30 / -8.30%
             |             
            
                29.20
             |           
            
                29.20
             |               
            
                25.40
             |                           
            
                25.40
             | 
            
                25.62
             |                     
            
                3.14
             |                                 
            
                25,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/3/2008
             | 
            
                -0.40 / -1.42%
             |             
            
                29.60
             |           
            
                29.60
             |               
            
                26.00
             |                           
            
                27.70
             | 
            
                27.29
             |                     
            
                3.43
             |                                 
            
                31,900
             |            
            
                 
             |                                       
         
    
        
            | 
                10/2/2008
             | 
            
                +1.90 / +7.25%
             |             
            
                26.40
             |           
            
                28.20
             |               
            
                26.40
             |                           
            
                28.10
             | 
            
                27.72
             |                     
            
                3.48
             |                                 
            
                75,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                10/1/2008
             | 
            
                -0.60 / -2.24%
             |             
            
                25.00
             |           
            
                28.50
             |               
            
                25.00
             |                           
            
                26.20
             | 
            
                26.35
             |                     
            
                3.24
             |                                 
            
                58,400
             |            
            
                 
             |                                       
         
    
        
            | 
                9/30/2008
             | 
            
                -1.20 / -4.29%
             |             
            
                26.80
             |           
            
                26.80
             |               
            
                26.80
             |                           
            
                26.80
             | 
            
                26.80
             |                     
            
                3.32
             |                                 
            
                1,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/29/2008
             | 
            
                -1.00 / -3.45%
             |             
            
                29.20
             |           
            
                30.00
             |               
            
                28.00
             |                           
            
                28.00
             | 
            
                28.78
             |                     
            
                3.46
             |                                 
            
                52,000
             |            
            
                 
             |                                       
         
    
        
            | 
                9/26/2008
             | 
            
                -1.10 / -3.65%
             |             
            
                31.00
             |           
            
                31.00
             |               
            
                28.00
             |                           
            
                29.00
             | 
            
                29.59
             |                     
            
                3.59
             |                                 
            
                89,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/25/2008
             | 
            
                +2.10 / +7.50%
             |             
            
                26.30
             |           
            
                30.10
             |               
            
                26.30
             |                           
            
                30.10
             | 
            
                29.05
             |                     
            
                3.72
             |                                 
            
                157,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/24/2008
             | 
            
                -1.40 / -4.76%
             |             
            
                27.70
             |           
            
                30.50
             |               
            
                27.70
             |                           
            
                28.00
             | 
            
                28.24
             |                     
            
                3.46
             |                                 
            
                130,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/23/2008
             | 
            
                -2.20 / -6.96%
             |             
            
                30.50
             |           
            
                30.90
             |               
            
                29.40
             |                           
            
                29.40
             | 
            
                29.68
             |                     
            
                3.64
             |                                 
            
                136,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/22/2008
             | 
            
                +0.20 / +0.64%
             |             
            
                31.60
             |           
            
                31.60
             |               
            
                31.60
             |                           
            
                31.60
             | 
            
                31.60
             |                     
            
                3.91
             |                                 
            
                15,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/19/2008
             | 
            
                +1.80 / +6.08%
             |             
            
                27.60
             |           
            
                31.60
             |               
            
                27.60
             |                           
            
                31.40
             | 
            
                29.60
             |                     
            
                3.89
             |                                 
            
                353,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/18/2008
             | 
            
                -2.20 / -6.92%
             |             
            
                29.60
             |           
            
                29.60
             |               
            
                29.60
             |                           
            
                29.60
             | 
            
                29.60
             |                     
            
                3.66
             |                                 
            
                600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/17/2008
             | 
            
                -2.30 / -6.74%
             |             
            
                31.80
             |           
            
                31.80
             |               
            
                31.80
             |                           
            
                31.80
             | 
            
                31.80
             |                     
            
                3.93
             |                                 
            
                4,300
             |            
            
                 
             |                                       
         
    
        
            | 
                9/16/2008
             | 
            
                -2.30 / -6.32%
             |             
            
                34.10
             |           
            
                34.10
             |               
            
                34.10
             |                           
            
                34.10
             | 
            
                34.10
             |                     
            
                4.22
             |                                 
            
                10,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/15/2008
             | 
            
                -2.70 / -6.91%
             |             
            
                36.40
             |           
            
                39.10
             |               
            
                36.40
             |                           
            
                36.40
             | 
            
                36.56
             |                     
            
                4.50
             |                                 
            
                191,500
             |            
            
                 
             |                                       
         
    
        
            | 
                9/12/2008
             | 
            
                -2.90 / -6.90%
             |             
            
                39.10
             |           
            
                39.10
             |               
            
                39.10
             |                           
            
                39.10
             | 
            
                39.10
             |                     
            
                4.84
             |                                 
            
                5,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/11/2008
             | 
            
                -1.40 / -3.23%
             |             
            
                42.00
             |           
            
                42.00
             |               
            
                42.00
             |                           
            
                42.00
             | 
            
                42.00
             |                     
            
                5.20
             |                                 
            
                9,200
             |            
            
                 
             |                                       
         
    
        
            | 
                9/10/2008
             | 
            
                -1.60 / -3.56%
             |             
            
                45.00
             |           
            
                46.80
             |               
            
                43.40
             |                           
            
                43.40
             | 
            
                45.07
             |                     
            
                5.37
             |                                 
            
                21,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/9/2008
             | 
            
                -1.50 / -3.23%
             |             
            
                45.80
             |           
            
                47.80
             |               
            
                44.00
             |                           
            
                45.00
             | 
            
                46.58
             |                     
            
                5.57
             |                                 
            
                110,100
             |            
            
                 
             |                                       
         
    
        
            | 
                9/8/2008
             | 
            
                +3.00 / +6.90%
             |             
            
                46.50
             |           
            
                46.50
             |               
            
                40.50
             |                           
            
                46.50
             | 
            
                44.74
             |                     
            
                5.75
             |                                 
            
                616,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/5/2008
             | 
            
                +2.80 / +6.88%
             |             
            
                43.50
             |           
            
                43.50
             |               
            
                43.50
             |                           
            
                43.50
             | 
            
                43.50
             |                     
            
                5.38
             |                                 
            
                19,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2008
             | 
            
                +2.60 / +6.82%
             |             
            
                40.70
             |           
            
                40.70
             |               
            
                40.70
             |                           
            
                40.70
             | 
            
                40.70
             |                     
            
                5.04
             |                                 
            
                8,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2008
             | 
            
                +2.40 / +6.72%
             |             
            
                38.10
             |           
            
                38.10
             |               
            
                38.10
             |                           
            
                38.10
             | 
            
                38.10
             |                     
            
                4.71
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/29/2008
             | 
            
                +2.30 / +6.89%
             |             
            
                35.70
             |           
            
                35.70
             |               
            
                35.70
             |                           
            
                35.70
             | 
            
                35.70
             |                     
            
                4.42
             |                                 
            
                49,000
             |  
            
                 
             |                                                              
             
    
         
    
    
 |