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Inventories
9 Months Ended
Sep. 30, 2013
Inventory Disclosure [Abstract]  
Inventories
INVENTORIES:

Inventory components consist of the following:
 
September 30,
2013
 
December 31,
2012
Coal
$
58,050

 
$
78,825

Merchandise for resale
37,792

 
35,363

Supplies
142,506

 
133,578

Total Inventories
$
238,348

 
$
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 $18,683 and $19,700 at September 30, 2013 and December 31, 2012, respectively.