Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Schedule of Components of Income Tax Expense (Benefit)

Significant components of the provision for (benefit from) income taxes are as follows:



	Year Ended December 31
	2014		2013			2012
	(In thousands)
Current:
Federal	$	—	$	—		$	(20,022	)
State	25		(647		)	575
Total current	25		(647		)	(19,447		)
Deferred:
Federal	18,535		(318,956		)	(341,486		)
State	7,074		(15,895		)	7,026
Total deferred	25,609		(334,851		)	(334,460		)
	$	25,634	$	(335,498	)	$	(353,907	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the statutory federal income tax provision (benefit) at the statutory rate to the actual provision for (benefit from) income taxes follows:



	Year Ended December 31
	2014			2013			2012
	(In thousands)
Income tax provision (benefit) at statutory rate	$	(186,452	)	$	(378,463	)	$	(382,581	)
Percentage depletion allowance	(12,692		)	(15,796		)	(33,654		)
Goodwill	—			70,301			56,916
State taxes, net of effect of federal taxes	(3,903		)	(25,265		)	(24,231		)
Change in valuation allowance	226,929			8,659			31,832
Other, net	1,752			5,066			(2,189		)
	$	25,634		$	(335,498	)	$	(353,907	)

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,
	2014			2013
	(In thousands)
Deferred tax assets:
Net operating loss carryforwards	$	871,848		$	660,916
Alternative minimum tax credit carryforwards	127,169			126,755
Reclamation and mine closure	114,430			113,843
Goodwill	50,072			52,636
Workers' compensation	38,924			31,641
Share based compensation	30,283			28,494
Acquired sales contracts	26,833			33,392
Retiree benefit plans	22,913			20,527
Contract obligations	15,693			19,327
Other, primarily accrued liabilities	64,503			68,969
Gross deferred tax assets	1,362,668			1,156,500
Valuation allowance	(270,251		)	(43,322		)
Total deferred tax assets	1,092,417			1,113,178
Deferred tax liabilities:
Plant and equipment	1,354,396			1,364,382
Deferred development	95,129			91,126
Investment in tax partnerships	7,377			8,170
Other	5,533			13,902
Total deferred tax liabilities	1,462,435			1,477,580
Net deferred liability	370,018			364,402

Summary of Income Tax Contingencies

A reconciliation of the beginning and ending amounts of gross unrecognized tax benefits follows:



		(In thousands)
Balance at	January 1, 2012	$	8,798
Additions based on tax positions related to the current year		409
Additions for tax positions of prior years		21,943
Balance at	December 31, 2012	31,150
Additions based on tax positions related to the current year		1,199
Additions for tax positions of prior years		688
Reductions as a result of lapses in the statute of limitations		(1,248		)
Balance at	December 31, 2013	31,789
Additions for tax positions of the current year		2,920
Balance at	December 31, 2014	$	34,709

- Definition

Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities (i.e., uncertain tax positions) and other types of income tax contingencies, including: (1) the policy on classification of interest and penalties; (2) a tabular reconciliation of the total amounts of unrecognized tax benefits at the beginning and end of the period; the total amount(s) of: (3) unrecognized tax benefits that, if recognized, would affect the effective tax rate, and (4) interest and penalties recognized in each of the income statement and balance sheet; (5) for positions for which it is reasonably possible that the total amounts unrecognized will significantly change within 12 months of the reporting date the: (i) nature of the uncertainty, (ii) nature of the event that could occur that would cause the change, and (iii) an estimate of the range of the reasonably possible change or a statement that an estimate of the range cannot be made; and (6) a description of tax years that remain subject to examination by major tax jurisdictions.

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