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                    Closing price on 10/27/2011
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                    | Open | 20.70 |  
                    | High | 21.40 |  
                    | Low | 20.60 |  
                    | Volume | 7,470 |  
                    | Split-adjusted Price | 2.82 |  
                
             | 
 |  MPC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 10/27/2011 | -0.10 / -0.48% | 20.70 | 21.40 | 20.60 | 20.60 | 20.60 | 2.82 | 7,470 |   |  
            | 10/26/2011 | -0.30 / -1.43% | 21.00 | 21.00 | 20.60 | 20.70 | 20.70 | 2.83 | 790 |   |  			
            | 10/25/2011 | 0.00 / 0.00% | 21.50 | 21.50 | 21.00 | 21.00 | 21.00 | 2.87 | 10,140 |   |  
            | 10/24/2011 | 0.00 / 0.00% | 21.10 | 21.50 | 20.00 | 21.00 | 21.00 | 2.87 | 1,790 |   |  			
            | 10/21/2011 | +0.40 / +1.94% | 20.70 | 21.10 | 20.70 | 21.00 | 21.00 | 2.87 | 4,380 |   |  
            | 10/20/2011 | +0.20 / +0.98% | 20.40 | 21.00 | 20.40 | 20.60 | 20.60 | 2.82 | 285,460 |   |  			
            | 10/19/2011 | 0.00 / 0.00% | 20.30 | 21.00 | 20.30 | 20.40 | 20.40 | 2.79 | 205,830 |   |  
            | 10/18/2011 | 0.00 / 0.00% | 20.20 | 20.40 | 19.80 | 20.40 | 20.40 | 2.79 | 109,800 |   |  			
            | 10/17/2011 | -0.70 / -3.32% | 21.30 | 21.30 | 20.30 | 20.40 | 20.40 | 2.79 | 22,140 |   |  
            | 10/14/2011 | -0.90 / -4.09% | 22.00 | 22.00 | 21.10 | 21.10 | 21.10 | 2.89 | 24,720 |   |  			
            | 10/13/2011 | +0.30 / +1.38% | 21.60 | 22.20 | 21.60 | 22.00 | 22.00 | 3.01 | 14,870 |   |  
            | 10/12/2011 | -0.80 / -3.56% | 22.50 | 22.50 | 21.70 | 21.70 | 21.70 | 2.97 | 16,940 |   |  			
            | 10/11/2011 | 0.00 / 0.00% | 23.40 | 23.40 | 22.50 | 22.50 | 22.50 | 3.08 | 13,900 |   |  
            | 10/10/2011 | +0.60 / +2.74% | 21.90 | 22.60 | 21.90 | 22.50 | 22.50 | 3.08 | 18,180 |   |  			
            | 10/7/2011 | -0.50 / -2.23% | 22.40 | 22.40 | 21.80 | 21.90 | 21.90 | 3.00 | 8,930 |   |  
            | 10/6/2011 | +0.50 / +2.28% | 22.50 | 22.50 | 22.40 | 22.40 | 22.40 | 3.06 | 30 |   |  			
            | 10/5/2011 | +0.20 / +0.92% | 21.70 | 22.00 | 21.70 | 21.90 | 21.90 | 3.00 | 10,190 |   |  
            | 10/4/2011 | -0.30 / -1.36% | 21.90 | 21.90 | 21.70 | 21.70 | 21.70 | 2.97 | 9,710 |   |  			
            | 10/3/2011 | -0.30 / -1.35% | 22.10 | 22.10 | 22.00 | 22.00 | 22.00 | 3.01 | 53,520 |   |  
            | 9/30/2011 | 0.00 / 0.00% | 22.10 | 22.40 | 22.10 | 22.30 | 22.30 | 3.05 | 2,500 |   |  			
            | 9/29/2011 | -0.60 / -2.62% | 23.00 | 23.00 | 22.30 | 22.30 | 22.30 | 3.05 | 13,920 |   |  
            | 9/28/2011 | +0.30 / +1.33% | 22.90 | 22.90 | 22.60 | 22.90 | 22.90 | 3.13 | 67,520 |   |  			
            | 9/27/2011 | +0.40 / +1.80% | 22.30 | 23.00 | 22.20 | 22.60 | 22.60 | 3.09 | 14,270 |   |  
            | 9/26/2011 | -0.50 / -2.20% | 22.30 | 22.30 | 22.10 | 22.20 | 22.20 | 3.04 | 22,180 |   |  			
            | 9/23/2011 | -0.90 / -3.81% | 23.00 | 23.50 | 22.70 | 22.70 | 22.70 | 3.11 | 24,980 |   |  
            | 9/22/2011 | -0.40 / -1.67% | 23.30 | 23.80 | 23.30 | 23.60 | 23.60 | 3.23 | 14,970 |   |  			
            | 9/21/2011 | -0.30 / -1.23% | 24.30 | 24.40 | 24.00 | 24.00 | 24.00 | 3.28 | 31,020 |   |  
            | 9/20/2011 | -0.20 / -0.82% | 24.90 | 24.90 | 24.20 | 24.30 | 24.30 | 3.32 | 48,370 |   |  			
            | 9/19/2011 | 0.00 / 0.00% | 24.50 | 24.50 | 24.10 | 24.50 | 24.50 | 3.35 | 96,760 |   |  
            | 9/16/2011 | 0.00 / 0.00% | 25.30 | 25.30 | 24.00 | 24.50 | 24.50 | 3.35 | 42,970 |   |  |