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            | 
                    Closing price on 4/18/2019
                 |  |  
    
        |           
                
                    | Open | 106.50 |  
                    | High | 107.00 |  
                    | Low | 105.30 |  
                    | Volume | 265,360 |  
                    | Split-adjusted Price | 63.97 |  
                
             | 
 |  GAS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/18/2019 | -1.20 / -1.12% | 106.50 | 107.00 | 105.30 | 105.60 | 105.81 | 63.97 | 265,360 |   |  
            | 4/17/2019 | +1.50 / +1.42% | 105.40 | 107.90 | 105.40 | 106.80 | 106.88 | 64.70 | 764,240 |   |  			
            | 4/16/2019 | -1.20 / -1.13% | 105.00 | 105.80 | 104.00 | 105.30 | 105.11 | 63.79 | 303,000 |   |  
            | 4/12/2019 | +1.50 / +1.43% | 104.50 | 107.30 | 103.70 | 106.50 | 105.61 | 64.52 | 393,550 |   |  			
            | 4/11/2019 | -0.20 / -0.19% | 106.20 | 106.20 | 105.00 | 105.00 | 105.11 | 63.61 | 281,390 |   |  
            | 4/10/2019 | +0.20 / +0.19% | 104.50 | 105.70 | 103.90 | 105.20 | 105.02 | 63.73 | 467,860 |   |  			
            | 4/9/2019 | -2.00 / -1.87% | 108.00 | 108.00 | 104.50 | 105.00 | 105.98 | 63.61 | 705,700 |   |  
            | 4/8/2019 | +3.20 / +3.08% | 105.00 | 107.00 | 105.00 | 107.00 | 106.02 | 64.82 | 886,190 |   |  			
            | 4/5/2019 | +2.50 / +2.47% | 101.30 | 103.80 | 101.00 | 103.80 | 102.71 | 62.88 | 1,141,600 |   |  
            | 4/4/2019 | -0.20 / -0.20% | 101.90 | 102.20 | 101.20 | 101.30 | 101.61 | 61.37 | 474,650 |   |  			
            | 4/3/2019 | +0.50 / +0.50% | 101.10 | 101.90 | 100.10 | 101.50 | 101.47 | 61.49 | 474,770 |   |  
            | 4/2/2019 | +0.30 / +0.30% | 102.10 | 102.60 | 101.00 | 101.00 | 101.60 | 61.19 | 563,160 |   |  			
            | 4/1/2019 | +2.50 / +2.55% | 98.50 | 101.00 | 98.50 | 100.70 | 99.52 | 61.00 | 433,760 |   |  
            | 3/29/2019 | -0.40 / -0.41% | 98.90 | 99.50 | 98.10 | 98.20 | 98.44 | 59.49 | 255,710 |   |  			
            | 3/28/2019 | +1.40 / +1.44% | 96.00 | 98.60 | 96.00 | 98.60 | 97.47 | 59.73 | 340,660 |   |  
            | 3/27/2019 | +0.10 / +0.10% | 98.60 | 98.60 | 97.10 | 97.20 | 97.92 | 58.88 | 371,570 |   |  			
            | 3/26/2019 | -1.10 / -1.12% | 99.00 | 99.00 | 96.20 | 97.10 | 97.64 | 58.82 | 349,120 |   |  
            | 3/25/2019 | -1.70 / -1.70% | 96.50 | 98.20 | 95.60 | 98.20 | 96.84 | 59.49 | 875,550 |   |  			
            | 3/22/2019 | +0.90 / +0.91% | 99.90 | 100.40 | 98.70 | 99.90 | 99.55 | 60.52 | 715,730 |   |  
            | 3/21/2019 | -3.20 / -3.13% | 103.50 | 103.50 | 99.00 | 99.00 | 101.80 | 59.97 | 689,690 |   |  			
            | 3/20/2019 | -1.30 / -1.26% | 103.00 | 103.00 | 101.10 | 102.20 | 102.15 | 61.91 | 592,690 |   |  
            | 3/19/2019 | -0.50 / -0.48% | 104.90 | 105.00 | 102.50 | 103.50 | 103.93 | 62.70 | 754,590 |   |  			
            | 3/18/2019 | +2.40 / +2.36% | 101.90 | 104.50 | 101.90 | 104.00 | 103.08 | 63.00 | 1,059,360 |   |  
            | 3/15/2019 | -0.70 / -0.68% | 102.00 | 102.10 | 101.00 | 101.60 | 101.56 | 61.55 | 777,450 |   |  			
            | 3/14/2019 | +0.70 / +0.69% | 102.50 | 103.20 | 101.60 | 102.30 | 102.38 | 60.76 | 746,300 |   |  
            | 3/13/2019 | -0.30 / -0.29% | 103.00 | 103.40 | 101.00 | 101.60 | 102.23 | 60.35 | 452,730 |   |  			
            | 3/12/2019 | +1.70 / +1.70% | 102.00 | 102.00 | 100.20 | 101.90 | 101.37 | 60.52 | 528,030 |   |  
            | 3/11/2019 | -0.80 / -0.79% | 101.00 | 101.10 | 98.90 | 100.20 | 99.83 | 59.51 | 497,400 |   |  			
            | 3/8/2019 | -2.00 / -1.94% | 102.10 | 102.70 | 100.70 | 101.00 | 101.59 | 59.99 | 717,540 |   |  
            | 3/7/2019 | -1.00 / -0.96% | 104.50 | 105.50 | 103.00 | 103.00 | 104.24 | 61.18 | 636,880 |   |  |