|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2011 |
| Bituminous/oil shale & tar sands | | | | $7,941 | $119,966 | $1,295,584 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $246,544 | $61,909 | $1,156,055 | $6,903,458 | $2,548,495 | $4,596,515 |
| Total | $246,544 | $61,909 | $1,156,055 | $6,911,399 | $2,668,461 | $5,892,099 |
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