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                    Closing price on 5/6/2011
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                    | Open | 17.80 |  
                    | High | 18.10 |  
                    | Low | 17.80 |  
                    | Volume | 110,360 |  
                    | Split-adjusted Price | 18.10 |  
                
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 |  OGC Historical Quote 
            
                | Date | Change | Open | High | Low | Close | Average | Adjusted Close | Volume |  |  			
            | 5/6/2011 | +0.20 / +1.12% | 17.80 | 18.10 | 17.80 | 18.10 | 18.10 | 18.10 | 110,360 |   |  
            | 5/5/2011 | -0.30 / -1.65% | 18.10 | 18.10 | 17.90 | 17.90 | 17.90 | 17.90 | 106,390 |   |  			
            | 5/4/2011 | -0.10 / -0.55% | 18.00 | 18.20 | 18.00 | 18.20 | 18.20 | 18.20 | 135,730 |   |  
            | 4/29/2011 | 0.00 / 0.00% | 18.40 | 18.40 | 18.00 | 18.30 | 18.30 | 18.30 | 93,960 |   |  			
            | 4/28/2011 | 0.00 / 0.00% | 18.30 | 18.50 | 18.00 | 18.30 | 18.30 | 18.30 | 73,880 |   |  
            | 4/27/2011 | +0.20 / +1.10% | 18.20 | 18.30 | 18.00 | 18.30 | 18.30 | 18.30 | 180,220 |   |  			
            | 4/26/2011 | -0.30 / -1.63% | 18.40 | 18.40 | 18.00 | 18.10 | 18.10 | 18.10 | 131,850 |   |  
            | 4/25/2011 | +0.40 / +2.22% | 18.00 | 18.40 | 18.00 | 18.40 | 18.40 | 18.40 | 145,620 |   |  			
            | 4/22/2011 | 0.00 / 0.00% | 18.00 | 18.10 | 17.70 | 18.00 | 18.00 | 18.00 | 177,640 |   |  
            | 4/21/2011 | -0.10 / -0.55% | 18.20 | 18.20 | 17.80 | 18.00 | 18.00 | 18.00 | 186,990 |   |  			
            | 4/20/2011 | +0.10 / +0.56% | 18.00 | 18.10 | 17.90 | 18.10 | 18.10 | 18.10 | 195,080 |   |  
            | 4/19/2011 | 0.00 / 0.00% | 18.00 | 18.10 | 17.90 | 18.00 | 18.00 | 18.00 | 129,330 |   |  			
            | 4/18/2011 | -0.50 / -2.70% | 18.50 | 18.50 | 18.00 | 18.00 | 18.00 | 18.00 | 130,920 |   |  
            | 4/15/2011 | -0.40 / -2.12% | 18.90 | 18.90 | 18.50 | 18.50 | 18.50 | 18.50 | 153,150 |   |  			
            | 4/14/2011 | 0.00 / 0.00% | 19.00 | 19.00 | 18.70 | 18.90 | 18.90 | 18.90 | 92,280 |   |  
            | 4/13/2011 | -0.20 / -1.05% | 19.20 | 19.20 | 18.90 | 18.90 | 18.90 | 18.90 | 113,300 |   |  			
            | 4/8/2011 | 0.00 / 0.00% | 19.20 | 19.20 | 18.90 | 19.10 | 19.10 | 19.10 | 110,310 |   |  
            | 4/7/2011 | -0.30 / -1.55% | 19.50 | 19.50 | 18.90 | 19.10 | 19.10 | 19.10 | 156,340 |   |  			
            | 4/6/2011 | +0.40 / +2.11% | 19.10 | 19.40 | 19.00 | 19.40 | 19.40 | 19.40 | 337,790 |   |  
            | 4/5/2011 | +0.30 / +1.60% | 19.00 | 19.00 | 18.70 | 19.00 | 19.00 | 19.00 | 229,990 |   |  			
            | 4/4/2011 | -0.40 / -2.09% | 19.30 | 19.30 | 18.70 | 18.70 | 18.70 | 18.70 | 206,740 |   |  
            | 4/1/2011 | 0.00 / 0.00% | 19.20 | 19.30 | 18.90 | 19.10 | 19.10 | 19.10 | 294,070 |   |  			
            | 3/31/2011 | -0.10 / -0.52% | 19.40 | 19.40 | 19.10 | 19.10 | 19.10 | 19.10 | 140,620 |   |  
            | 3/30/2011 | 0.00 / 0.00% | 19.00 | 19.30 | 18.80 | 19.20 | 19.20 | 19.20 | 258,000 |   |  			
            | 3/29/2011 | 0.00 / 0.00% | 19.40 | 19.40 | 18.80 | 19.20 | 19.20 | 19.20 | 303,130 |   |  
            | 3/28/2011 | -0.20 / -1.03% | 19.70 | 19.70 | 19.20 | 19.20 | 19.20 | 19.20 | 102,810 |   |  			
            | 3/25/2011 | -0.10 / -0.51% | 19.50 | 19.50 | 19.20 | 19.40 | 19.40 | 19.40 | 155,460 |   |  
            | 3/24/2011 | 0.00 / 0.00% | 19.50 | 19.70 | 19.40 | 19.50 | 19.50 | 19.50 | 452,700 |   |  			
            | 3/23/2011 | +0.40 / +2.09% | 19.10 | 19.70 | 19.10 | 19.50 | 19.50 | 19.50 | 315,540 |   |  
            | 3/22/2011 | -0.50 / -2.55% | 19.30 | 20.00 | 19.00 | 19.10 | 19.10 | 19.10 | 307,240 |   |  |  |  
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						| Market Update 
        
            
                Last updated at 3:10:01 PM
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