nymex
as of: 
12/29/2011
    
        |  | volume | open interest | 
    
        | globex total: | 4,927,862 |  | 
    
        | globex fut: | 4,649,598 |  | 
    
        | globex opt: | 278,264 |  | 
    
        | clearport total: | 2,318 |  | 
    
        | floor volume: | 1,146,208 |  | 
    
        | total futures: | 5,065,941 | 43,070,242 | 
    
        | total options: | 1,517,533 | 35,070,233 | 
    
        | grand total: | 6,585,792 | 78,194,922 |