|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $6,783 | | $303,020 | $451,058 | $120,593 | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $64,578 | $61,715 | $248,688 | $368,878 | $663,697 | $798,686 | $480,368 |
| Total | $71,361 | $61,715 | $551,708 | $819,936 | $784,290 | $798,686 | $480,368 |
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