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MISCELLANEOUS OTHER INCOME
3 Months Ended
Mar. 31, 2018
Other Income and Expenses [Abstract]  
MISCELLANEOUS OTHER INCOME
MISCELLANEOUS OTHER INCOME:

 
For the Three Months Ended
March 31,
 
2018
 
2017
Royalty Income - Non-Operated Coal
$
9,806

 
$
8,697

Purchased Coal Sales
8,746

 
3,541

Property Easements and Option Income
4,151

 
392

Rental Income
1,122

 
8,527

Interest Income
601

 
590

Other
1,461

 
903

Miscellaneous Other Income
$
25,887

 
$
22,650