|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $327,851 | $183 | $23,056 | | $28,000 | $4,356 | $3,667 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | | | $5,323,769 | $41,431,041 | $23,258 | $15,060 | $19,988 |
| Total | $327,851 | $183 | $5,346,825 | $41,431,041 | $51,258 | $19,416 | $23,655 |
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