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Inventories
3 Months Ended
Mar. 31, 2013
INVENTORIES: [Abstract]  
Inventories
INVENTORIES:

Inventory components consist of the following:
 
March 31,
2013
 
December 31,
2012
Coal
$
51,954

 
$
78,825

Merchandise for resale
35,120

 
35,363

Supplies
129,960

 
133,578

Total Inventories
$
217,034

 
$
247,766



         
Inventories are stated at the lower of cost or market. The cost of coal inventories is determined by the first-in, first-out (FIFO) method. Coal inventory costs include labor, supplies, equipment costs, operating overhead, depreciation, depletion and amortization, and other related costs.

Merchandise for resale is valued using the last-in, first-out (LIFO) cost method. The excess of replacement cost of merchandise for resale inventories over carrying LIFO value was $19,726 and $19,700 at March 31, 2013 and December 31, 2012, respectively.