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Other Accrued Liabilities
12 Months Ended
Dec. 31, 2019
Other Liabilities Disclosure [Abstract]  
Other Accrued Liabilities OTHER ACCRUED LIABILITIES:
 
 
December 31,
 
 
2019
 
2018
Royalties
 
$
74,061

 
$
92,005

Accrued Interest
 
30,862

 
26,333

Short-Term Incentive Compensation
 
21,030

 
20,482

Transportation Charges
 
16,533

 
19,661

Deferred Revenue
 
13,964

 
17,693

Accrued Other Taxes
 
9,115

 
7,300

Accrued Payroll & Benefits
 
6,248

 
6,533

Other
 
38,105

 
31,851

Current Portion of Long-Term Liabilities:
 

 

Asset Retirement Obligations
 
5,076

 
1,075

Salary Retirement
 
1,587

 
1,578

Total Other Accrued Liabilities
 
$
216,581


$
224,511