| 
                 
                    Closing price on 7/5/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    60.00 | 
                 
                
                    | High | 
                    60.50 | 
                 
                
                    | Low | 
                    59.00 | 
                     
                
                    | Volume | 
                    288,200 | 
                                 
                
                    | Split-adjusted Price | 
                    25.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
GAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/5/2013
             | 
            
                -1.00 / -1.67%
             |             
            
                60.00
             |           
            
                60.50
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.35
             |                     
            
                25.68
             |                                 
            
                288,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2013
             | 
            
                0.00 / 0.00%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                59.50
             |                           
            
                60.00
             | 
            
                60.03
             |                     
            
                26.12
             |                                 
            
                149,020
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2013
             | 
            
                -0.50 / -0.83%
             |             
            
                60.00
             |           
            
                61.00
             |               
            
                59.50
             |                           
            
                60.00
             | 
            
                60.09
             |                     
            
                26.12
             |                                 
            
                432,100
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2013
             | 
            
                +1.00 / +1.68%
             |             
            
                59.00
             |           
            
                61.00
             |               
            
                59.00
             |                           
            
                60.50
             | 
            
                59.90
             |                     
            
                26.33
             |                                 
            
                419,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2013
             | 
            
                +1.50 / +2.59%
             |             
            
                57.50
             |           
            
                59.50
             |               
            
                57.00
             |                           
            
                59.50
             | 
            
                58.18
             |                     
            
                25.90
             |                                 
            
                359,580
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2013
             | 
            
                -1.00 / -1.69%
             |             
            
                59.50
             |           
            
                59.50
             |               
            
                58.00
             |                           
            
                58.00
             | 
            
                58.69
             |                     
            
                25.25
             |                                 
            
                475,950
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2013
             | 
            
                +2.00 / +3.51%
             |             
            
                57.50
             |           
            
                59.50
             |               
            
                57.00
             |                           
            
                59.00
             | 
            
                58.15
             |                     
            
                25.68
             |                                 
            
                771,380
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2013
             | 
            
                +1.50 / +2.70%
             |             
            
                56.50
             |           
            
                57.00
             |               
            
                55.00
             |                           
            
                57.00
             | 
            
                56.18
             |                     
            
                24.81
             |                                 
            
                461,070
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2013
             | 
            
                -2.50 / -4.31%
             |             
            
                57.50
             |           
            
                58.50
             |               
            
                54.50
             |                           
            
                55.50
             | 
            
                56.33
             |                     
            
                24.16
             |                                 
            
                960,570
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2013
             | 
            
                -1.50 / -2.52%
             |             
            
                60.00
             |           
            
                60.00
             |               
            
                57.00
             |                           
            
                58.00
             | 
            
                58.18
             |                     
            
                25.25
             |                                 
            
                576,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2013
             | 
            
                0.00 / 0.00%
             |             
            
                59.00
             |           
            
                60.00
             |               
            
                58.50
             |                           
            
                59.50
             | 
            
                59.19
             |                     
            
                25.90
             |                                 
            
                263,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2013
             | 
            
                -1.00 / -1.65%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                59.00
             |                           
            
                59.50
             | 
            
                59.60
             |                     
            
                25.90
             |                                 
            
                458,210
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2013
             | 
            
                +1.00 / +1.68%
             |             
            
                60.50
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                60.50
             | 
            
                60.40
             |                     
            
                26.33
             |                                 
            
                265,820
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2013
             | 
            
                -0.50 / -0.83%
             |             
            
                60.00
             |           
            
                60.50
             |               
            
                59.00
             |                           
            
                59.50
             | 
            
                59.57
             |                     
            
                25.90
             |                                 
            
                783,760
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/17/2013
             | 
            
                -2.00 / -3.23%
             |             
            
                62.50
             |           
            
                62.50
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.65
             |                     
            
                26.12
             |                                 
            
                865,660
             |            
            
                 
             |                                       
         
    
        
            | 
                6/14/2013
             | 
            
                -0.50 / -0.80%
             |             
            
                63.50
             |           
            
                63.50
             |               
            
                62.00
             |                           
            
                62.00
             | 
            
                62.23
             |                     
            
                26.99
             |                                 
            
                344,840
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/13/2013
             | 
            
                0.00 / 0.00%
             |             
            
                62.50
             |           
            
                63.00
             |               
            
                61.50
             |                           
            
                62.50
             | 
            
                61.99
             |                     
            
                27.20
             |                                 
            
                691,010
             |            
            
                 
             |                                       
         
    
        
            | 
                6/12/2013
             | 
            
                0.00 / 0.00%
             |             
            
                62.00
             |           
            
                63.50
             |               
            
                62.00
             |                           
            
                62.50
             | 
            
                62.70
             |                     
            
                27.20
             |                                 
            
                437,990
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/11/2013
             | 
            
                -1.00 / -1.57%
             |             
            
                63.00
             |           
            
                63.50
             |               
            
                62.00
             |                           
            
                62.50
             | 
            
                62.81
             |                     
            
                27.20
             |                                 
            
                793,070
             |            
            
                 
             |                                       
         
    
        
            | 
                6/10/2013
             | 
            
                -1.00 / -1.55%
             |             
            
                64.50
             |           
            
                65.50
             |               
            
                63.50
             |                           
            
                63.50
             | 
            
                64.39
             |                     
            
                27.64
             |                                 
            
                727,410
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/7/2013
             | 
            
                +2.50 / +4.03%
             |             
            
                62.00
             |           
            
                65.50
             |               
            
                62.00
             |                           
            
                64.50
             | 
            
                63.90
             |                     
            
                28.07
             |                                 
            
                784,140
             |            
            
                 
             |                                       
         
    
        
            | 
                6/6/2013
             | 
            
                +1.50 / +2.48%
             |             
            
                60.50
             |           
            
                62.00
             |               
            
                60.00
             |                           
            
                62.00
             | 
            
                60.98
             |                     
            
                26.99
             |                                 
            
                1,193,010
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/5/2013
             | 
            
                +1.50 / +2.54%
             |             
            
                59.50
             |           
            
                60.50
             |               
            
                59.00
             |                           
            
                60.50
             | 
            
                59.49
             |                     
            
                26.33
             |                                 
            
                572,030
             |            
            
                 
             |                                       
         
    
        
            | 
                6/4/2013
             | 
            
                -1.00 / -1.67%
             |             
            
                60.50
             |           
            
                60.50
             |               
            
                59.00
             |                           
            
                59.00
             | 
            
                59.86
             |                     
            
                25.68
             |                                 
            
                826,790
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/3/2013
             | 
            
                -0.50 / -0.83%
             |             
            
                61.00
             |           
            
                61.00
             |               
            
                60.00
             |                           
            
                60.00
             | 
            
                60.24
             |                     
            
                26.12
             |                                 
            
                522,950
             |            
            
                 
             |                                       
         
    
        
            | 
                5/31/2013
             | 
            
                -1.00 / -1.63%
             |             
            
                62.50
             |           
            
                62.50
             |               
            
                60.50
             |                           
            
                60.50
             | 
            
                61.51
             |                     
            
                26.33
             |                                 
            
                880,170
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/30/2013
             | 
            
                +1.00 / +1.65%
             |             
            
                60.50
             |           
            
                61.50
             |               
            
                59.50
             |                           
            
                61.50
             | 
            
                60.52
             |                     
            
                26.77
             |                                 
            
                682,440
             |            
            
                 
             |                                       
         
    
        
            | 
                5/29/2013
             | 
            
                -1.50 / -2.42%
             |             
            
                62.00
             |           
            
                63.00
             |               
            
                60.50
             |                           
            
                60.50
             | 
            
                61.43
             |                     
            
                26.33
             |                                 
            
                1,182,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/28/2013
             | 
            
                +1.00 / +1.64%
             |             
            
                61.00
             |           
            
                62.50
             |               
            
                61.00
             |                           
            
                62.00
             | 
            
                61.66
             |                     
            
                26.99
             |                                 
            
                866,820
             |            
            
                 
             |                                       
         
    
        
            | 
                5/27/2013
             | 
            
                +2.50 / +4.27%
             |             
            
                59.00
             |           
            
                62.00
             |               
            
                59.00
             |                           
            
                61.00
             | 
            
                60.57
             |                     
            
                26.55
             |                                 
            
                916,500
             |  
            
                 
             |                                                              
             
    
         
    
    
 |