|
| Commodity | 2005 | 2008 | 2009 | 2010 | 2011 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $3,596 | $897,456 | $170,216 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $2,190 | | | | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | $6,869 | $45,235 | $842,511 | | |
| Total | $9,059 | $45,235 | $846,107 | $897,456 | $170,216 |
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