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                    Closing price on 4/14/2015
                 |  |  
    
        |           
                
                    | Open | 19.80 |  
                    | High | 19.80 |  
                    | Low | 19.60 |  
                    | Volume | 53,000 |  
                    | Split-adjusted Price | 9.07 |  
                
             | 
 |  PGS Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 4/14/2015 | +0.20 / +1.02% | 19.80 | 19.80 | 19.60 | 19.80 | 19.67 | 9.07 | 53,000 |   |  
            | 4/13/2015 | -0.40 / -2.00% | 20.00 | 20.30 | 19.40 | 19.60 | 19.81 | 8.98 | 228,400 |   |  			
            | 4/10/2015 | -0.20 / -0.99% | 20.40 | 20.40 | 20.00 | 20.00 | 20.16 | 9.17 | 95,972 |   |  
            | 4/9/2015 | +0.70 / +3.59% | 19.40 | 20.20 | 19.40 | 20.20 | 19.81 | 9.26 | 321,240 |   |  			
            | 4/8/2015 | +0.60 / +3.17% | 19.00 | 19.50 | 19.00 | 19.50 | 19.09 | 8.94 | 160,800 |   |  
            | 4/7/2015 | +0.30 / +1.61% | 18.60 | 19.00 | 18.40 | 18.90 | 18.81 | 8.66 | 139,498 |   |  			
            | 4/6/2015 | -0.20 / -1.06% | 19.00 | 19.00 | 18.60 | 18.60 | 18.78 | 8.52 | 44,700 |   |  
            | 4/3/2015 | 0.00 / 0.00% | 18.90 | 18.90 | 18.60 | 18.80 | 18.71 | 8.62 | 165,700 |   |  			
            | 4/2/2015 | +0.30 / +1.62% | 18.80 | 18.80 | 18.50 | 18.80 | 18.63 | 8.62 | 59,200 |   |  
            | 4/1/2015 | -0.90 / -4.64% | 19.40 | 19.60 | 18.40 | 18.50 | 18.91 | 8.48 | 222,053 |   |  			
            | 3/31/2015 | +0.10 / +0.52% | 19.70 | 19.70 | 19.20 | 19.40 | 19.40 | 8.89 | 98,300 |   |  
            | 3/30/2015 | -0.40 / -2.03% | 19.80 | 19.90 | 19.30 | 19.30 | 19.57 | 8.85 | 109,700 |   |  			
            | 3/27/2015 | -0.10 / -0.51% | 20.10 | 20.10 | 19.70 | 19.70 | 19.95 | 9.03 | 86,750 |   |  
            | 3/26/2015 | 0.00 / 0.00% | 19.80 | 19.90 | 19.60 | 19.80 | 19.73 | 9.07 | 133,400 |   |  			
            | 3/25/2015 | 0.00 / 0.00% | 20.00 | 20.10 | 19.70 | 19.80 | 19.88 | 9.07 | 229,000 |   |  
            | 3/24/2015 | -0.60 / -2.94% | 20.30 | 20.40 | 19.80 | 19.80 | 20.03 | 9.07 | 210,764 |   |  			
            | 3/23/2015 | 0.00 / 0.00% | 20.50 | 20.50 | 20.30 | 20.40 | 20.40 | 9.35 | 187,509 |   |  
            | 3/20/2015 | -0.10 / -0.49% | 20.50 | 20.60 | 20.40 | 20.40 | 20.47 | 9.35 | 148,120 |   |  			
            | 3/19/2015 | 0.00 / 0.00% | 21.00 | 21.00 | 20.40 | 20.50 | 20.56 | 9.40 | 155,570 |   |  
            | 3/18/2015 | -0.50 / -2.38% | 21.00 | 21.00 | 20.50 | 20.50 | 20.71 | 9.40 | 228,796 |   |  			
            | 3/17/2015 | -7.30 / -25.80% | 21.70 | 21.70 | 20.70 | 21.00 | 21.06 | 9.62 | 303,124 |   |  
            | 3/16/2015 | -0.10 / -0.35% | 29.00 | 29.00 | 28.20 | 28.30 | 28.36 | 9.49 | 506,440 |   |  			
            | 3/13/2015 | -0.20 / -0.70% | 28.80 | 28.80 | 28.40 | 28.40 | 28.51 | 9.52 | 329,010 |   |  
            | 3/12/2015 | 0.00 / 0.00% | 28.90 | 28.90 | 28.50 | 28.60 | 28.67 | 9.59 | 350,234 |   |  			
            | 3/11/2015 | -0.30 / -1.04% | 28.90 | 29.00 | 28.60 | 28.60 | 28.76 | 9.59 | 309,420 |   |  
            | 3/10/2015 | -0.10 / -0.34% | 29.00 | 29.10 | 28.80 | 28.90 | 28.98 | 9.69 | 244,100 |   |  			
            | 3/9/2015 | -0.20 / -0.68% | 30.00 | 30.00 | 28.90 | 29.00 | 29.16 | 9.72 | 347,500 |   |  
            | 3/6/2015 | +0.20 / +0.69% | 29.30 | 29.50 | 29.00 | 29.20 | 29.27 | 9.79 | 215,000 |   |  			
            | 3/5/2015 | +0.40 / +1.40% | 28.70 | 29.60 | 28.70 | 29.00 | 29.21 | 9.72 | 644,251 |   |  
            | 3/4/2015 | +0.70 / +2.51% | 28.40 | 28.80 | 28.30 | 28.60 | 28.52 | 9.59 | 417,644 |   |  |