|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | $643,361 | $271,227 | $81,674 | $14,484 | $285,254 | $7,099 | $937 |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $130,893 | $136,365 | $19,429 | $267,300 | $1,009,888 | $1,514,503 | $1,480,858 |
| Total | $774,254 | $407,592 | $101,103 | $281,784 | $1,295,142 | $1,521,602 | $1,481,795 |
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