|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | | | $143,484 | | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $37,264 | $13,340 | $6,172 | $6,281 | $4,048 | $9,801 | $12,534 |
| Total | $37,264 | $13,340 | $6,172 | $149,765 | $4,048 | $9,801 | $12,534 |
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