|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Bituminous/oil shale & tar sands | $135,261 | | $42,900 | $3,978,137 | $53,971 | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $14,916,966 | $18,993,205 | $29,463,009 | $64,422,048 | $69,871,626 | $54,012,995 |
| Total | $15,052,227 | $18,993,205 | $29,505,909 | $68,400,185 | $69,925,597 | $54,012,995 |
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