Commodity200520062007200820092010
Bituminous/oil shale & tar sands$115,615$111,811$83,724$100,197$51,610$80,872
Bitumen & asphalt, nat.; asphaltites & asphaltic rocks$423,921$316,587$1,158,409$24,263,906$29,490,411$45,518,950
Total$539,536$428,398$1,242,133$24,364,103$29,542,021$45,599,822