Commodity2005200620072008200920102011
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$26,093    $248,539$1,080,558
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...     $774,708$124,795
Line pipe of a kind used for oil/gas pipelines, having circular cross-secti ...$1,466,478$5,155,041$1,416,352$353,448$7,317$223,062$585,180
Casing of a kind used in drilling for oil/gas, having circular cross-sectio ...$112,204 $1,454,171$1,265,432$1,670,688$184,558$4,226,503
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$121,549$157,335$171,662$197,106$240,938$47,690$12,639
Tubes & pipes (excl. of 7305.11-7305.20), having circular cross-sections, t ...$23,391$14,108$1,934,120$501,100$1,785,223$234,917$12,774
Tubes & pipes (e.g., welded/riveted/similarly closed), having circular cros ...$43,637$25,144$16,359$173,925$74,610$1,490,958$533,553
Total$1,793,352$5,351,628$4,992,664$2,491,011$3,778,776$3,204,432$6,576,002