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                    Closing price on 11/13/2007
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        |           
                
                    | Open | 71.00 |  
                    | High | 71.00 |  
                    | Low | 68.20 |  
                    | Volume | 195,700 |  
                    | Split-adjusted Price | 8.51 |  
                
             | 
 |  MPC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 11/13/2007 | -1.40 / -2.00% | 71.00 | 71.00 | 68.20 | 68.60 | 68.60 | 8.51 | 195,700 |   |  
            | 11/12/2007 | -0.50 / -0.71% | 71.00 | 72.00 | 70.00 | 70.00 | 70.00 | 8.69 | 198,000 |   |  			
            | 11/9/2007 | +0.60 / +0.86% | 71.00 | 71.00 | 67.70 | 70.50 | 70.50 | 8.75 | 107,900 |   |  
            | 11/8/2007 | -1.30 / -1.83% | 71.00 | 72.00 | 69.50 | 69.90 | 69.90 | 8.68 | 72,700 |   |  			
            | 11/7/2007 | +0.70 / +0.99% | 74.00 | 75.00 | 70.00 | 71.20 | 71.20 | 8.84 | 67,700 |   |  
            | 11/6/2007 | -1.50 / -2.08% | 71.00 | 73.00 | 70.00 | 70.50 | 70.50 | 8.75 | 156,500 |   |  			
            | 11/5/2007 | 0.00 / 0.00% | 71.70 | 72.50 | 71.00 | 72.00 | 72.00 | 8.94 | 92,200 |   |  
            | 11/2/2007 | -1.50 / -2.04% | 72.50 | 72.50 | 71.70 | 72.00 | 72.00 | 8.94 | 94,300 |   |  			
            | 11/1/2007 | +0.50 / +0.68% | 74.50 | 74.50 | 72.50 | 73.50 | 73.50 | 9.12 | 103,100 |   |  
            | 10/31/2007 | -2.00 / -2.67% | 78.00 | 78.00 | 72.10 | 73.00 | 73.00 | 9.06 | 120,500 |   |  			
            | 10/30/2007 | +2.30 / +3.16% | 72.50 | 75.00 | 72.50 | 75.00 | 75.00 | 9.31 | 175,500 |   |  
            | 10/29/2007 | -0.30 / -0.41% | 74.50 | 78.00 | 71.00 | 72.70 | 72.70 | 9.02 | 161,100 |   |  			
            | 10/26/2007 | -2.00 / -2.67% | 76.00 | 78.00 | 72.70 | 73.00 | 73.00 | 9.06 | 193,100 |   |  
            | 10/25/2007 | -3.10 / -3.97% | 77.50 | 78.10 | 73.00 | 75.00 | 75.00 | 9.31 | 193,200 |   |  			
            | 10/24/2007 | -0.40 / -0.51% | 79.50 | 79.50 | 77.00 | 78.10 | 78.10 | 9.69 | 207,100 |   |  
            | 10/23/2007 | +1.60 / +2.08% | 78.00 | 80.00 | 77.00 | 78.50 | 78.50 | 9.74 | 346,300 |   |  			
            | 10/22/2007 | -2.10 / -2.66% | 79.00 | 80.00 | 75.00 | 76.90 | 76.90 | 9.54 | 120,100 |   |  
            | 10/19/2007 | +3.50 / +4.64% | 75.00 | 80.00 | 73.00 | 79.00 | 79.00 | 9.81 | 229,000 |   |  			
            | 10/18/2007 | -2.50 / -3.21% | 73.00 | 77.00 | 73.00 | 75.50 | 75.50 | 9.37 | 212,800 |   |  
            | 10/17/2007 | -2.90 / -3.58% | 88.00 | 88.40 | 75.00 | 78.00 | 78.00 | 9.68 | 325,900 |   |  			
            | 10/16/2007 | +5.90 / +7.87% | 68.00 | 80.90 | 68.00 | 80.90 | 80.90 | 10.04 | 581,700 |   |  
            | 10/15/2007 | +3.00 / +4.17% | 73.00 | 75.00 | 72.00 | 75.00 | 75.00 | 9.31 | 373,900 |   |  			
            | 10/12/2007 | -0.90 / -1.23% | 75.00 | 75.00 | 70.50 | 72.00 | 72.00 | 8.94 | 204,600 |   |  
            | 10/11/2007 | -0.10 / -0.14% | 77.00 | 77.00 | 71.90 | 72.90 | 72.90 | 9.05 | 348,400 |   |  			
            | 10/10/2007 | +5.00 / +7.35% | 71.00 | 73.10 | 68.00 | 73.00 | 73.00 | 9.06 | 503,700 |   |  
            | 10/9/2007 | +3.00 / +4.62% | 65.00 | 69.00 | 64.00 | 68.00 | 68.00 | 8.44 | 278,600 |   |  			
            | 10/8/2007 | 0.00 / 0.00% | 66.30 | 67.00 | 63.50 | 65.00 | 65.00 | 8.07 | 175,400 |   |  
            | 10/5/2007 | -1.90 / -2.84% | 67.50 | 68.00 | 64.00 | 65.00 | 65.00 | 8.07 | 149,400 |   |  			
            | 10/4/2007 | 0.00 / 0.00% | 68.00 | 68.00 | 66.90 | 66.90 | 66.90 | 8.30 | 129,900 |   |  
            | 10/3/2007 | -0.20 / -0.30% | 67.50 | 69.00 | 65.00 | 66.90 | 66.90 | 8.30 | 92,700 |   |  |