|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Bituminous/oil shale & tar sands | | | | $507,946 | $604,193 | | |
| Bitumen & asphalt, nat.; asphaltites & asphaltic rocks | $6,530 | $82,509 | $110,892 | $224,431 | $213,381 | $845,241 | $1,001,335 |
| Total | $6,530 | $82,509 | $110,892 | $732,377 | $817,574 | $845,241 | $1,001,335 |
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