Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Taxes

Schedule of Components of Income Tax Expense (Benefit)

		Year Ended		Year Ended	Year Ended
		December 31,		December 31,	December 31,
		2020		2019	2018
(In thousands)
Current:
Federal	$	518	$	(36)	$	86
State		(569)		124		136
Total current	$	(51)	$	88	$	222
Deferred:
Federal		44		667		(52,309)
State		—		(507)		(389)
Total deferred	$	44	$	160	$	(52,698)
	$	(7)	$	248	$	(52,476)

Schedule of Effective Income Tax Rate Reconciliation

	Year Ended		Year Ended		Year Ended
	December 31,		December 31,		December 31,
	2020		2019		2018
Income tax provision at statutory rate	$	(72,371)	$	49,150	$	54,621
Percentage depletion allowance		(7,763)		(17,743)		(17,725)
State taxes, net of effect of federal taxes		(3,298)		(12,769)		4,480
Change in valuation allowance		76,524		(24,206)		(79,961)
Current expense associated with uncertain tax positions
Other, net		6,901		5,816		3,754
Provision for (benefit from) income taxes	$	(7)	$	248	$	(52,476)

Schedule of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities that result from carryforwards and temporary differences between the financial statement basis and tax basis of assets and liabilities are summarized as follows:

	December 31,		December 31,
	2020		2019
(In thousands)
Deferred tax assets:
Tax loss carryforwards	$	352,342	$	294,535
Tax credit carryforwards		3,117		5,297
Investment in partnerships		213,478		190,418
Other		19,377		20,387
Gross deferred tax assets	$	588,314	$	510,637
Valuation allowance		(573,995)		(506,316)
Total deferred tax assets	$	14,319	$	4,321
Deferred tax liabilities:
Plant and equipment		1,219		2,063
Convertible Notes		8,845		—
Other		4,218		2,178
Total deferred tax liabilities	$	14,282	$	4,241
Net deferred tax asset	$	37	$	80

Summary of Income Tax Contingencies

	(In thousands)
Balance at December 31, 2017	$	11,383
Additions based on tax positions related to the current year		28,387
Additions for tax positions of prior years		3,228
Reductions for tax positions of prior years		(634)
Reductions as a result of lapses in the statute of limitations		(3,271)
Balance at December 31, 2018		39,093
Additions based on tax positions to the current year		2,980
Reductions for tax positions of prior years		(1,970)
Reductions as a result of lapses in the statute of limitations		(374)
Balance at December 31, 2019		39,729
Additions for tax positions related to the current year		1,583
Additions for tax positions related to the prior year		7,918
Reductions for tax positions of prior years		(732)
Reductions as a result of lapses in the statute of limitations		(382)
Balance at December 31, 2020	$	48,116