|
| Commodity | 2006 | 2008 | 2009 | 2010 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | $999 | | $332,799 | $8,786 |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | | $13,208 | |
| Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ... | | $384,356 | $494,190 | |
| Casing of a kind used in drilling for oil/gas, having circular cross-sectio ... | | | | $652,354 |
| Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ... | | $1,333,693 | | |
| Total | $999 | $1,718,049 | $840,197 | $661,140 |
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