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INVENTORIES (Tables)
 12 Months Ended
Dec. 31, 2013
INVENTORIES [Abstract]  
Inventories

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

in thousands
2013 

 

 
2012 

 

Inventories

 

 

 

 

 

Finished products  1

$      270,603 

 

 

$     262,886 

 

Raw materials
29,996 

 

 
27,758 

 

Products in process
6,613 

 

 
5,963 

 

Operating supplies and other
37,394 

 

 
38,415 

 

Total

$      344,606 

 

 

$     335,022 

 

 

 

 

1

Includes inventories encumbered by the purchaser's percentage of volumetric production payments (see Note 1, Deferred Revenue), as follows: December 31, 2013 — $4,492 thousand and December 31, 2012 — $8,726 thousand.