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                    Closing price on 11/30/2010
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                    | Open | 31.00 |  
                    | High | 31.40 |  
                    | Low | 30.70 |  
                    | Volume | 7,150 |  
                    | Split-adjusted Price | 4.20 |  
                
             | 
 |  MPC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/30/2010 | +0.20 / +0.66% | 31.00 | 31.40 | 30.70 | 30.70 | 30.70 | 4.20 | 7,150 |   |  
            | 11/29/2010 | +0.30 / +0.99% | 30.40 | 30.50 | 29.20 | 30.50 | 30.50 | 4.17 | 6,750 |   |  			
            | 11/26/2010 | +0.60 / +2.03% | 30.30 | 30.30 | 29.70 | 30.20 | 30.20 | 4.13 | 12,870 |   |  
            | 11/25/2010 | -0.10 / -0.34% | 30.00 | 30.20 | 29.50 | 29.60 | 29.60 | 4.05 | 11,750 |   |  			
            | 11/24/2010 | +0.40 / +1.37% | 28.70 | 29.70 | 28.50 | 29.70 | 29.70 | 4.06 | 5,210 |   |  
            | 11/23/2010 | -0.60 / -2.01% | 29.30 | 29.90 | 29.20 | 29.30 | 29.30 | 4.01 | 10,630 |   |  			
            | 11/22/2010 | -0.10 / -0.33% | 29.00 | 29.90 | 28.50 | 29.90 | 29.90 | 4.09 | 14,590 |   |  
            | 11/19/2010 | -0.30 / -0.99% | 30.60 | 30.90 | 29.70 | 30.00 | 30.00 | 4.10 | 2,520 |   |  			
            | 11/18/2010 | +0.30 / +1.00% | 29.80 | 30.50 | 29.00 | 30.30 | 30.30 | 4.15 | 4,890 |   |  
            | 11/17/2010 | 0.00 / 0.00% | 30.00 | 30.00 | 30.00 | 30.00 | 30.00 | 4.10 | 2,800 |   |  			
            | 11/16/2010 | -0.50 / -1.64% | 31.30 | 31.30 | 30.00 | 30.00 | 30.00 | 4.10 | 1,290 |   |  
            | 11/15/2010 | -0.50 / -1.61% | 31.00 | 31.00 | 30.50 | 30.50 | 30.50 | 4.17 | 22,040 |   |  			
            | 11/12/2010 | 0.00 / 0.00% | 30.50 | 31.00 | 30.50 | 31.00 | 31.00 | 4.24 | 11,000 |   |  
            | 11/11/2010 | 0.00 / 0.00% | 30.50 | 31.00 | 29.70 | 31.00 | 31.00 | 4.24 | 1,810 |   |  			
            | 11/10/2010 | +0.30 / +0.98% | 30.70 | 31.70 | 29.50 | 31.00 | 31.00 | 4.24 | 17,020 |   |  
            | 11/9/2010 | -1.20 / -3.76% | 30.80 | 30.80 | 30.50 | 30.70 | 30.70 | 4.20 | 4,060 |   |  			
            | 11/8/2010 | +0.20 / +0.63% | 32.00 | 32.00 | 31.80 | 31.90 | 31.90 | 4.36 | 9,600 |   |  
            | 11/5/2010 | +0.90 / +2.92% | 31.90 | 31.90 | 31.00 | 31.70 | 31.70 | 4.34 | 15,380 |   |  			
            | 11/4/2010 | +1.20 / +4.05% | 29.60 | 30.80 | 29.20 | 30.80 | 30.80 | 4.21 | 31,030 |   |  
            | 11/3/2010 | -0.40 / -1.33% | 29.60 | 29.90 | 29.50 | 29.60 | 29.60 | 4.05 | 5,550 |   |  			
            | 11/2/2010 | -0.40 / -1.32% | 30.00 | 30.40 | 30.00 | 30.00 | 30.00 | 4.10 | 16,480 |   |  
            | 11/1/2010 | -0.40 / -1.30% | 30.40 | 30.80 | 30.40 | 30.40 | 30.40 | 4.16 | 2,620 |   |  			
            | 10/29/2010 | +0.40 / +1.32% | 30.90 | 31.00 | 30.00 | 30.80 | 30.80 | 4.21 | 22,400 |   |  
            | 10/28/2010 | 0.00 / 0.00% | 30.00 | 30.40 | 30.00 | 30.40 | 30.40 | 4.16 | 23,650 |   |  			
            | 10/27/2010 | -0.20 / -0.65% | 30.00 | 30.50 | 30.00 | 30.40 | 30.40 | 4.16 | 2,450 |   |  
            | 10/26/2010 | +0.60 / +2.00% | 30.90 | 30.90 | 30.50 | 30.60 | 30.60 | 4.19 | 5,660 |   |  			
            | 10/25/2010 | +0.30 / +1.01% | 29.70 | 30.00 | 29.70 | 30.00 | 30.00 | 4.10 | 11,870 |   |  
            | 10/22/2010 | 0.00 / 0.00% | 29.80 | 30.00 | 29.70 | 29.70 | 29.70 | 4.06 | 9,830 |   |  			
            | 10/21/2010 | -0.20 / -0.67% | 29.40 | 29.90 | 29.40 | 29.70 | 29.70 | 4.06 | 3,700 |   |  
            | 10/20/2010 | -1.10 / -3.55% | 31.00 | 31.00 | 29.90 | 29.90 | 29.90 | 4.09 | 14,260 |   |  |