|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $17,722,155 | $26,570,526 | $23,739,457 | $69,539,382 | $16,663,124 | $2,405,938 | $46,624 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $6,437,901 | $47,027,359 | $4,212,959 | $4,203,077 | $22,397,382 | $8,550,752 | $43,448,337 |
| Total | $24,160,056 | $73,597,885 | $27,952,416 | $73,742,459 | $39,060,506 | $10,956,690 | $43,494,961 |
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