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                    Closing price on 7/27/2011
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                    | Open | 12.00 |  
                    | High | 12.00 |  
                    | Low | 11.80 |  
                    | Volume | 248,550 |  
                    | Split-adjusted Price | 12.00 |  
                
             | 
 |  OGC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 7/27/2011 | 0.00 / 0.00% | 12.00 | 12.00 | 11.80 | 12.00 | 12.00 | 12.00 | 248,550 |   |  
            | 7/26/2011 | +0.10 / +0.84% | 11.90 | 12.20 | 11.80 | 12.00 | 12.00 | 12.00 | 227,680 |   |  			
            | 7/25/2011 | -0.30 / -2.46% | 11.80 | 12.10 | 11.80 | 11.90 | 11.90 | 11.90 | 372,590 |   |  
            | 7/22/2011 | 0.00 / 0.00% | 12.10 | 12.30 | 12.00 | 12.20 | 12.20 | 12.20 | 176,920 |   |  			
            | 7/21/2011 | -0.40 / -3.17% | 12.30 | 12.50 | 12.20 | 12.20 | 12.20 | 12.20 | 258,260 |   |  
            | 7/20/2011 | +0.50 / +4.13% | 12.10 | 12.60 | 12.10 | 12.60 | 12.60 | 12.60 | 306,240 |   |  			
            | 7/19/2011 | -0.10 / -0.82% | 12.20 | 12.20 | 11.90 | 12.10 | 12.10 | 12.10 | 281,260 |   |  
            | 7/18/2011 | 0.00 / 0.00% | 11.90 | 12.20 | 11.90 | 12.20 | 12.20 | 12.20 | 306,830 |   |  			
            | 7/15/2011 | -0.40 / -3.17% | 12.60 | 12.60 | 12.10 | 12.20 | 12.20 | 12.20 | 831,380 |   |  
            | 7/14/2011 | +0.20 / +1.61% | 12.30 | 12.70 | 12.10 | 12.60 | 12.60 | 12.60 | 398,060 |   |  			
            | 7/13/2011 | +0.10 / +0.81% | 12.70 | 12.70 | 12.20 | 12.40 | 12.40 | 12.40 | 399,170 |   |  
            | 7/12/2011 | -0.40 / -3.15% | 12.40 | 12.50 | 12.20 | 12.30 | 12.30 | 12.30 | 335,170 |   |  			
            | 7/11/2011 | -0.10 / -0.78% | 12.80 | 12.80 | 12.60 | 12.70 | 12.70 | 12.70 | 237,940 |   |  
            | 7/8/2011 | -0.10 / -0.78% | 12.60 | 12.90 | 12.60 | 12.80 | 12.80 | 12.80 | 282,290 |   |  			
            | 7/7/2011 | 0.00 / 0.00% | 12.90 | 13.00 | 12.60 | 12.90 | 12.90 | 12.90 | 692,650 |   |  
            | 7/6/2011 | -0.20 / -1.53% | 13.30 | 13.30 | 12.60 | 12.90 | 12.90 | 12.90 | 736,220 |   |  			
            | 7/5/2011 | +0.60 / +4.80% | 13.00 | 13.10 | 12.90 | 13.10 | 13.10 | 13.10 | 624,240 |   |  
            | 7/4/2011 | 0.00 / 0.00% | 12.60 | 12.60 | 12.20 | 12.50 | 12.50 | 12.50 | 444,280 |   |  			
            | 7/1/2011 | -0.40 / -3.10% | 12.90 | 13.00 | 12.40 | 12.50 | 12.50 | 12.50 | 519,850 |   |  
            | 6/30/2011 | -0.40 / -3.01% | 13.50 | 13.50 | 12.90 | 12.90 | 12.90 | 12.90 | 426,980 |   |  			
            | 6/29/2011 | -0.30 / -2.21% | 13.60 | 13.60 | 13.10 | 13.30 | 13.30 | 13.30 | 749,620 |   |  
            | 6/28/2011 | -0.40 / -2.86% | 13.80 | 14.10 | 13.60 | 13.60 | 13.60 | 13.60 | 417,830 |   |  			
            | 6/27/2011 | +0.40 / +2.94% | 13.60 | 14.00 | 13.60 | 14.00 | 14.00 | 14.00 | 393,550 |   |  
            | 6/24/2011 | -0.20 / -1.45% | 13.80 | 14.20 | 13.60 | 13.60 | 13.60 | 13.60 | 496,520 |   |  			
            | 6/23/2011 | -0.20 / -1.43% | 14.00 | 14.10 | 13.50 | 13.80 | 13.80 | 13.80 | 428,060 |   |  
            | 6/22/2011 | -0.30 / -2.10% | 14.60 | 14.70 | 14.00 | 14.00 | 14.00 | 14.00 | 256,120 |   |  			
            | 6/21/2011 | +0.60 / +4.38% | 13.60 | 14.30 | 13.40 | 14.30 | 14.30 | 14.30 | 655,940 |   |  
            | 6/20/2011 | -0.60 / -4.20% | 14.00 | 14.10 | 13.60 | 13.70 | 13.70 | 13.70 | 966,020 |   |  			
            | 6/17/2011 | -0.70 / -4.67% | 14.50 | 15.00 | 14.30 | 14.30 | 14.30 | 14.30 | 734,820 |   |  
            | 6/16/2011 | 0.00 / 0.00% | 14.90 | 15.30 | 14.70 | 15.00 | 15.00 | 15.00 | 424,020 |   |  |