Commodity20052006200720102011
Petroleum gases other than nat. gas/propane/butanes/ethylene, propylene, bu ...$30$3,776$5,991$3,145 
Petroleum gases & gaseous hydrocarbons, other than nat. gas, in gaseous sta ...$136 $6,398 $208
Total$166$3,776$12,389$3,145$208