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                    Closing price on 11/6/2012
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                    | Open | 4.10 |  
                    | High | 4.20 |  
                    | Low | 4.00 |  
                    | Volume | 1,492,146 |  
                    | Split-adjusted Price | 4.20 |  
                
             | 
 |  PVX Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/6/2012 | +0.20 / +5.00% | 4.10 | 4.20 | 4.00 | 4.20 | 4.12 | 4.20 | 1,492,146 |   |  
            | 11/5/2012 | 0.00 / 0.00% | 3.90 | 4.10 | 3.90 | 4.00 | 4.00 | 4.00 | 1,391,316 |   |  			
            | 11/2/2012 | -0.30 / -6.98% | 4.30 | 4.30 | 4.00 | 4.00 | 4.03 | 4.00 | 7,737,705 |   |  
            | 11/1/2012 | -0.10 / -2.27% | 4.40 | 4.50 | 4.30 | 4.30 | 4.36 | 4.30 | 880,622 |   |  			
            | 10/31/2012 | +0.20 / +4.76% | 4.30 | 4.40 | 4.20 | 4.40 | 4.23 | 4.40 | 1,684,850 |   |  
            | 10/30/2012 | 0.00 / 0.00% | 4.20 | 4.40 | 4.20 | 4.20 | 4.29 | 4.20 | 1,211,300 |   |  			
            | 10/29/2012 | -0.10 / -2.33% | 4.10 | 4.50 | 4.10 | 4.20 | 4.30 | 4.20 | 1,291,800 |   |  
            | 10/26/2012 | 0.00 / 0.00% | 4.30 | 4.50 | 4.20 | 4.30 | 4.34 | 4.30 | 1,156,900 |   |  			
            | 10/25/2012 | -0.10 / -2.27% | 4.40 | 4.40 | 4.10 | 4.30 | 4.23 | 4.30 | 2,489,700 |   |  
            | 10/24/2012 | -0.10 / -2.22% | 4.50 | 4.60 | 4.30 | 4.40 | 4.41 | 4.40 | 1,992,500 |   |  			
            | 10/23/2012 | +0.10 / +2.27% | 4.40 | 4.60 | 4.30 | 4.50 | 4.43 | 4.50 | 1,943,769 |   |  
            | 10/22/2012 | -0.30 / -6.38% | 4.50 | 4.60 | 4.40 | 4.40 | 4.45 | 4.40 | 4,372,310 |   |  			
            | 10/19/2012 | -0.40 / -7.84% | 5.00 | 5.00 | 4.70 | 4.70 | 4.77 | 4.70 | 4,173,000 |   |  
            | 10/18/2012 | +0.30 / +6.25% | 4.70 | 5.10 | 4.70 | 5.10 | 4.96 | 5.10 | 4,512,870 |   |  			
            | 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 |   |  |  |