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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bituminous/oil shale & tar sands | $1,002,639 | $1,041,896 | $957,251 | $372,776 | $848,424 | $1,155,188 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $411,759 | $1,221,584 | $3,500,069 | $1,972,668 | $3,042,500 | $4,264,637 |
| Total | $1,414,398 | $2,263,480 | $4,457,320 | $2,345,444 | $3,890,924 | $5,419,825 |
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