| 
                 
                    Closing price on 5/5/2017
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    54.50 | 
                 
                
                    | High | 
                    54.90 | 
                 
                
                    | Low | 
                    54.40 | 
                     
                
                    | Volume | 
                    238,870 | 
                                 
                
                    | Split-adjusted Price | 
                    29.72 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
GAS Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                5/5/2017
             | 
            
                -0.60 / -1.09%
             |             
            
                54.50
             |           
            
                54.90
             |               
            
                54.40
             |                           
            
                54.60
             | 
            
                54.64
             |                     
            
                29.72
             |                                 
            
                238,870
             |            
            
                 
             |                                       
         
    
        
            | 
                5/4/2017
             | 
            
                0.00 / 0.00%
             |             
            
                55.00
             |           
            
                55.20
             |               
            
                54.80
             |                           
            
                55.20
             | 
            
                55.02
             |                     
            
                30.05
             |                                 
            
                623,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                5/3/2017
             | 
            
                -0.30 / -0.54%
             |             
            
                55.00
             |           
            
                55.60
             |               
            
                54.90
             |                           
            
                55.20
             | 
            
                55.13
             |                     
            
                30.05
             |                                 
            
                651,080
             |            
            
                 
             |                                       
         
    
        
            | 
                4/28/2017
             | 
            
                -0.30 / -0.54%
             |             
            
                55.60
             |           
            
                56.00
             |               
            
                54.50
             |                           
            
                55.50
             | 
            
                55.53
             |                     
            
                30.21
             |                                 
            
                498,570
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/27/2017
             | 
            
                +1.30 / +2.39%
             |             
            
                54.50
             |           
            
                56.00
             |               
            
                54.40
             |                           
            
                55.80
             | 
            
                55.46
             |                     
            
                30.38
             |                                 
            
                1,008,680
             |            
            
                 
             |                                       
         
    
        
            | 
                4/26/2017
             | 
            
                +0.80 / +1.49%
             |             
            
                53.80
             |           
            
                54.50
             |               
            
                53.60
             |                           
            
                54.50
             | 
            
                54.06
             |                     
            
                29.67
             |                                 
            
                334,940
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/25/2017
             | 
            
                -0.40 / -0.74%
             |             
            
                54.00
             |           
            
                54.20
             |               
            
                53.70
             |                           
            
                53.70
             | 
            
                53.89
             |                     
            
                29.23
             |                                 
            
                110,460
             |            
            
                 
             |                                       
         
    
        
            | 
                4/24/2017
             | 
            
                +0.50 / +0.93%
             |             
            
                53.60
             |           
            
                54.50
             |               
            
                53.40
             |                           
            
                54.10
             | 
            
                53.92
             |                     
            
                29.45
             |                                 
            
                361,260
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/21/2017
             | 
            
                -0.40 / -0.74%
             |             
            
                53.90
             |           
            
                54.40
             |               
            
                53.60
             |                           
            
                53.60
             | 
            
                53.96
             |                     
            
                29.18
             |                                 
            
                256,750
             |            
            
                 
             |                                       
         
    
        
            | 
                4/20/2017
             | 
            
                -1.00 / -1.82%
             |             
            
                54.40
             |           
            
                54.40
             |               
            
                54.00
             |                           
            
                54.00
             | 
            
                54.17
             |                     
            
                29.40
             |                                 
            
                435,360
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/19/2017
             | 
            
                -0.10 / -0.18%
             |             
            
                55.20
             |           
            
                55.40
             |               
            
                54.70
             |                           
            
                55.00
             | 
            
                55.04
             |                     
            
                29.94
             |                                 
            
                247,430
             |            
            
                 
             |                                       
         
    
        
            | 
                4/18/2017
             | 
            
                +1.10 / +2.04%
             |             
            
                54.00
             |           
            
                55.20
             |               
            
                54.00
             |                           
            
                55.10
             | 
            
                54.67
             |                     
            
                29.99
             |                                 
            
                457,560
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/17/2017
             | 
            
                +0.10 / +0.19%
             |             
            
                54.20
             |           
            
                55.10
             |               
            
                53.70
             |                           
            
                54.00
             | 
            
                54.29
             |                     
            
                29.40
             |                                 
            
                492,270
             |            
            
                 
             |                                       
         
    
        
            | 
                4/14/2017
             | 
            
                -0.80 / -1.46%
             |             
            
                54.90
             |           
            
                55.00
             |               
            
                53.50
             |                           
            
                53.90
             | 
            
                54.00
             |                     
            
                29.34
             |                                 
            
                568,130
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/13/2017
             | 
            
                -0.70 / -1.26%
             |             
            
                56.40
             |           
            
                56.40
             |               
            
                54.30
             |                           
            
                54.70
             | 
            
                55.02
             |                     
            
                29.78
             |                                 
            
                678,760
             |            
            
                 
             |                                       
         
    
        
            | 
                4/12/2017
             | 
            
                -1.40 / -2.46%
             |             
            
                57.00
             |           
            
                57.00
             |               
            
                55.40
             |                           
            
                55.40
             | 
            
                56.10
             |                     
            
                30.16
             |                                 
            
                733,350
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/11/2017
             | 
            
                -0.10 / -0.18%
             |             
            
                57.00
             |           
            
                57.50
             |               
            
                56.30
             |                           
            
                56.80
             | 
            
                57.08
             |                     
            
                30.92
             |                                 
            
                718,510
             |            
            
                 
             |                                       
         
    
        
            | 
                4/10/2017
             | 
            
                -0.30 / -0.52%
             |             
            
                57.50
             |           
            
                57.50
             |               
            
                56.70
             |                           
            
                56.90
             | 
            
                57.05
             |                     
            
                30.97
             |                                 
            
                485,730
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/7/2017
             | 
            
                +2.40 / +4.38%
             |             
            
                55.30
             |           
            
                57.20
             |               
            
                55.10
             |                           
            
                57.20
             | 
            
                56.24
             |                     
            
                30.76
             |                                 
            
                1,555,420
             |            
            
                 
             |                                       
         
    
        
            | 
                4/5/2017
             | 
            
                +0.50 / +0.92%
             |             
            
                54.90
             |           
            
                55.10
             |               
            
                54.50
             |                           
            
                54.80
             | 
            
                54.83
             |                     
            
                29.47
             |                                 
            
                535,710
             |  
            
                 
             |                                                              
             
    
        			
            | 
                4/4/2017
             | 
            
                -0.40 / -0.73%
             |             
            
                55.00
             |           
            
                55.00
             |               
            
                54.00
             |                           
            
                54.30
             | 
            
                54.24
             |                     
            
                29.20
             |                                 
            
                611,560
             |            
            
                 
             |                                       
         
    
        
            | 
                4/3/2017
             | 
            
                -0.30 / -0.55%
             |             
            
                54.80
             |           
            
                55.30
             |               
            
                54.50
             |                           
            
                54.70
             | 
            
                54.85
             |                     
            
                29.41
             |                                 
            
                428,240
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/31/2017
             | 
            
                +0.60 / +1.10%
             |             
            
                55.00
             |           
            
                55.30
             |               
            
                54.60
             |                           
            
                55.00
             | 
            
                54.93
             |                     
            
                29.57
             |                                 
            
                532,050
             |            
            
                 
             |                                       
         
    
        
            | 
                3/30/2017
             | 
            
                +0.60 / +1.12%
             |             
            
                54.00
             |           
            
                54.70
             |               
            
                54.00
             |                           
            
                54.40
             | 
            
                54.44
             |                     
            
                29.25
             |                                 
            
                362,230
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/29/2017
             | 
            
                +0.20 / +0.37%
             |             
            
                54.10
             |           
            
                54.60
             |               
            
                53.60
             |                           
            
                53.80
             | 
            
                54.05
             |                     
            
                28.93
             |                                 
            
                552,250
             |            
            
                 
             |                                       
         
    
        
            | 
                3/28/2017
             | 
            
                -0.40 / -0.74%
             |             
            
                54.00
             |           
            
                54.00
             |               
            
                53.50
             |                           
            
                53.60
             | 
            
                53.73
             |                     
            
                28.82
             |                                 
            
                319,850
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/27/2017
             | 
            
                -0.50 / -0.92%
             |             
            
                54.30
             |           
            
                54.40
             |               
            
                53.70
             |                           
            
                54.00
             | 
            
                54.02
             |                     
            
                29.04
             |                                 
            
                555,010
             |            
            
                 
             |                                       
         
    
        
            | 
                3/24/2017
             | 
            
                +1.30 / +2.44%
             |             
            
                53.40
             |           
            
                54.50
             |               
            
                53.40
             |                           
            
                54.50
             | 
            
                53.93
             |                     
            
                29.31
             |                                 
            
                516,030
             |  
            
                 
             |                                                              
             
    
        			
            | 
                3/23/2017
             | 
            
                +0.20 / +0.38%
             |             
            
                53.00
             |           
            
                54.20
             |               
            
                53.00
             |                           
            
                53.20
             | 
            
                53.43
             |                     
            
                28.61
             |                                 
            
                971,180
             |            
            
                 
             |                                       
         
    
        
            | 
                3/22/2017
             | 
            
                -1.40 / -2.57%
             |             
            
                54.20
             |           
            
                54.40
             |               
            
                53.00
             |                           
            
                53.00
             | 
            
                53.60
             |                     
            
                28.50
             |                                 
            
                1,255,270
             |  
            
                 
             |                                                              
             
    
         
    
    
 |