|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $166,873 | $5,867 | $2,635 | $43,576 | $15,371 | | $68 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $4,964,553 | $2,252,169 | $2,017,085 | $3,652,619 | $261,901 | $402,841 | $2,134,210 |
| Total | $5,131,426 | $2,258,036 | $2,019,720 | $3,696,195 | $277,272 | $402,841 | $2,134,278 |
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