|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $321,408 | $432,625 | $256,980 | $34,720 | | | $23 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | | $37,465 | $175,595 | | $109 | $36,842 | $118,978 |
| Total | $321,408 | $470,090 | $432,575 | $34,720 | $109 | $36,842 | $119,001 |
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