Whiting Petroleum Corp (WLL)
Last Change % Change Open High Low
66.33  0.45   0.68   66.75   67.69   65.83  

Feb 2010  Mar 2010  Jun 2010  Sep 2010  Jan 2011  Jan 2012  
Call Strike Put
Sym Last Chge Vol Open Int   Sym Last Chge Vol Open Int
WLL B 50 19.60 0.00 0 50.00 WLL N 50 N/A N/A N/A N/A 
WLL B 55 N/A N/A N/A N/A  55.00 WLL N 55 N/A N/A N/A N/A 
WLL B 60 12.40 0.00 0 48  60.00 WLL N 60 0.35 0.00 0 326 
WLL B 65 2.45 0.30 24 236  65.00 WLL N 65 1.25 0.25 97 1794 
WLL B 70 0.80 0.20 2 5056  70.00 WLL N 70 4.60 0.00 0 799 
WLL B 75 0.10 0.05 5 6022  75.00 WLL N 75 10.00 0.00 0 568 
WLL B 80 0.15 0.00 0 1073  80.00 WLL N 80 5.70 0.00 0 10 
WLL B 85 0.10 0.00 0 292  85.00 WLL N 85 N/A N/A N/A N/A 
WLL B 90 N/A N/A N/A N/A  90.00 WLL N 90 N/A N/A N/A N/A 
WLL B 95 N/A N/A N/A N/A  95.00 WLL N 95 N/A N/A N/A N/A 
WLL B 100 N/A N/A N/A N/A  100.00 WLL N 100 N/A N/A N/A N/A