Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Reconciliation Of Income Tax Expense (Benefit) [Table Text Block]

A reconciliation of income tax expense (benefit), computed by applying the federal statutory rate to pre-tax income (loss) to our effective income tax expense (benefit) is as follows:



	2015			2014		2013
	(In thousands)
Income tax expense (benefit) computed by applying the statutory rate	$	(582,508	)	$	78,029	$	105,514
State income tax, net of federal benefit	(45,768		)	6,131		8,290
Statutory depletion and other	1,328			2,503		2,919
Income tax expense (benefit)	$	(626,948	)	$	86,663	$	116,723

Schedule Of Total Provision For Income Taxes [Table Text Block]

For the periods indicated, the total provision for income taxes consisted of the following:



	2015			2014		2013
	(In thousands)
Current taxes:
Federal	$	(20,612	)	$	8,594	$	15,845
State	(4		)	784		146
	(20,616		)	9,378		15,991
Deferred taxes:
Federal	(535,691		)	68,360		87,839
State	(70,641		)	8,925		12,893
	(606,332		)	77,285		100,732
Total provision	$	(626,948	)	$	86,663	$	116,723

Schedule Of Deferred Tax Assets And Liabilities [Table Text Block]

Deferred tax assets and liabilities are comprised of the following at December 31:



	2015			2014
	(In thousands)
Deferred tax assets:
Allowance for losses and nondeductible accruals	$	56,479		$	55,231
Net operating loss carryforward	140,863			54,901
Alternative minimum tax and research and development tax credit carryforward	5,409			25,991
	202,751			136,123
Deferred tax liability:
Depreciation, depletion, amortization, and impairment	(464,295		)	(1,000,811		)
Net deferred tax liability	(261,544		)	(864,688		)
Current deferred tax asset	14,206			11,527
Non-current—deferred tax liability	$	(275,750	)	$	(876,215	)

Schedule of Unrecognized Tax Benefits [Table Text Block]

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:



	2015		2014		2013
	(In thousands)
Balance at January 1:	$	410	$	—	$	—
Additions based on tax positions related to current year	—		410		—
Additions for tax positions of prior years	—		—		—
Reductions for tax positions of prior years	—		—		—
Settlements	—		—		—
Balance at December 31:	$	410	$	410	$	—