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Inventories
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories at March 31, 2015 and December 31, 2014 were as follows (in thousands):
 
March 31,
 
December 31,
 
2015
 
2014
Pipe and connectors
$
184,967

 
$
185,076

Finished goods
4,260

 
4,291

Work in progress
6,381

 
3,363

Raw materials, components and supplies
12,400

 
11,278

Total inventories
$
208,008

 
$
204,008