|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | $50,120 | $65 | $1,902,550 | $5,867,543 | $24,700 | $378,633 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $466,528 | $332,373 | $698,978 | $1,038,790 | $474,261 | $448,162 | $8,485,078 |
| Total | $466,528 | $382,493 | $699,043 | $2,941,340 | $6,341,804 | $472,862 | $8,863,711 |
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