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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2020
Income Taxes  
Schedule of Components of Income Tax Expense (Benefit)

Three Months Ended March 31, 

    

2020

    

2019

    

Income tax provision at statutory rate

$

(5,689)

$

15,290

Percentage depletion allowance

 

6,168

 

(4,307)

State taxes, net of effect of federal taxes

 

82

 

1,012

Change in valuation allowance

 

850

 

(12,513)

Current expense associated with uncertain tax positions

(2,031)

593

AMT sequestration refund

 

(1,171)

 

Other, net

 

 

(5)

Provision for (benefit from) income taxes

$

(1,791)

$

70