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                    Closing price on 10/17/2012
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                    | Open | 4.80 |  
                    | High | 5.00 |  
                    | Low | 4.60 |  
                    | Volume | 4,531,475 |  
                    | Split-adjusted Price | 4.80 |  
                
             | 
 |  PVX Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/17/2012 | +0.10 / +2.13% | 4.80 | 5.00 | 4.60 | 4.80 | 4.79 | 4.80 | 4,531,475 |   |  
            | 10/16/2012 | +0.20 / +4.44% | 4.40 | 4.70 | 4.40 | 4.70 | 4.65 | 4.70 | 3,714,104 |   |  			
            | 10/15/2012 | -0.10 / -2.17% | 4.50 | 4.60 | 4.30 | 4.50 | 4.44 | 4.50 | 2,239,200 |   |  
            | 10/12/2012 | -0.10 / -2.13% | 4.60 | 4.70 | 4.50 | 4.60 | 4.60 | 4.60 | 3,318,562 |   |  			
            | 10/11/2012 | 0.00 / 0.00% | 4.70 | 5.00 | 4.60 | 4.70 | 4.79 | 4.70 | 4,329,955 |   |  
            | 10/10/2012 | +0.10 / +2.17% | 4.70 | 4.80 | 4.50 | 4.70 | 4.65 | 4.70 | 2,722,903 |   |  			
            | 10/9/2012 | +0.30 / +6.98% | 4.40 | 4.60 | 4.40 | 4.60 | 4.58 | 4.60 | 5,518,281 |   |  
            | 10/8/2012 | +0.20 / +4.88% | 4.10 | 4.30 | 4.10 | 4.30 | 4.29 | 4.30 | 4,196,900 |   |  			
            | 10/5/2012 | 0.00 / 0.00% | 4.10 | 4.20 | 4.00 | 4.10 | 4.11 | 4.10 | 1,491,294 |   |  
            | 10/4/2012 | 0.00 / 0.00% | 4.10 | 4.20 | 4.00 | 4.10 | 4.08 | 4.10 | 1,109,062 |   |  			
            | 10/3/2012 | +0.10 / +2.50% | 3.90 | 4.20 | 3.80 | 4.10 | 4.16 | 4.10 | 2,296,283 |   |  
            | 10/2/2012 | -0.10 / -2.44% | 4.00 | 4.20 | 3.90 | 4.00 | 4.01 | 4.00 | 2,532,214 |   |  			
            | 10/1/2012 | -0.30 / -6.82% | 4.40 | 4.40 | 4.10 | 4.10 | 4.15 | 4.10 | 3,029,531 |   |  
            | 9/28/2012 | -0.10 / -2.22% | 4.50 | 4.50 | 4.30 | 4.40 | 4.44 | 4.40 | 2,650,145 |   |  			
            | 9/27/2012 | -0.30 / -6.25% | 4.80 | 4.90 | 4.50 | 4.50 | 4.68 | 4.50 | 2,856,215 |   |  
            | 9/26/2012 | +0.30 / +6.67% | 4.50 | 4.80 | 4.40 | 4.80 | 4.64 | 4.80 | 4,005,387 |   |  			
            | 9/25/2012 | 0.00 / 0.00% | 4.40 | 4.50 | 4.30 | 4.50 | 4.42 | 4.50 | 2,684,356 |   |  
            | 9/24/2012 | -0.20 / -4.26% | 4.60 | 4.70 | 4.40 | 4.50 | 4.53 | 4.50 | 2,778,855 |   |  			
            | 9/21/2012 | +0.30 / +6.82% | 4.10 | 4.70 | 4.10 | 4.70 | 4.56 | 4.70 | 3,120,908 |   |  
            | 9/20/2012 | -0.10 / -2.22% | 4.40 | 4.60 | 4.30 | 4.40 | 4.36 | 4.40 | 4,412,995 |   |  			
            | 9/19/2012 | -0.30 / -6.25% | 4.50 | 4.70 | 4.50 | 4.50 | 4.51 | 4.50 | 6,907,070 |   |  
            | 9/18/2012 | -0.30 / -5.88% | 4.90 | 5.00 | 4.80 | 4.80 | 4.81 | 4.80 | 2,518,665 |   |  			
            | 9/17/2012 | -0.30 / -5.56% | 5.40 | 5.40 | 5.10 | 5.10 | 5.16 | 5.10 | 3,394,645 |   |  
            | 9/14/2012 | +0.20 / +3.85% | 4.80 | 5.40 | 4.80 | 5.40 | 5.34 | 5.40 | 3,069,500 |   |  			
            | 9/13/2012 | +0.10 / +1.96% | 4.80 | 5.20 | 4.80 | 5.20 | 5.00 | 5.20 | 4,061,141 |   |  
            | 9/12/2012 | -0.30 / -5.56% | 5.10 | 5.30 | 5.10 | 5.10 | 5.11 | 5.10 | 10,620,673 |   |  			
            | 9/11/2012 | -0.40 / -6.90% | 5.40 | 5.40 | 5.40 | 5.40 | 5.40 | 5.40 | 940,615 |   |  
            | 9/10/2012 | -0.40 / -6.45% | 5.80 | 6.10 | 5.80 | 5.80 | 5.83 | 5.80 | 1,741,500 |   |  			
            | 9/7/2012 | +0.10 / +1.64% | 6.00 | 6.30 | 6.00 | 6.20 | 6.15 | 6.20 | 2,300,450 |   |  
            | 9/6/2012 | -0.20 / -3.17% | 6.30 | 6.30 | 6.00 | 6.10 | 6.16 | 6.10 | 2,320,960 |   |  |  |