Segment Information (Tables)

9 Months Ended

Sep. 30, 2015

Segment Information

Schedule of revenue

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
		2015		2014		2015		2014
Owned and Operated Mines	$	265,657	$	285,983	$	733,735	$	827,680
Logistics and Related Activities		44,772		65,640		162,802		178,836
Corporate and Other		2,176		7,789		8,626		20,429
Eliminations of intersegment sales		(10,931)		(17,075)		(41,789)		(44,692)
Consolidated revenue	$	301,673	$	342,337	$	863,374	$	982,253

Summary of total revenue from external customers by geographic location

		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2015		2014		2015		2014
United States		$	265,531	$	284,843	$	726,340	$	819,562
South Korea			29,252		48,945		114,734		127,370
Other			6,890		8,549		22,300		35,321
	Total revenue from external customers	$	301,673	$	342,337	$	863,374	$	982,253

Summary of Adjusted EBITDA

			Three Months Ended September 30,
			2015				2014
Adjusted EBITDA
Owned and Operated Mines					$	57,795			$	43,589
Logistics and Related Activities						(19,050)				1,394
Corporate and Other						512				1,040
	Subtotal reportable segments					39,257				46,023
Eliminations						(237)				(304)
Interest expense, net						(10,947)				(12,664)
Depreciation and depletion						(7,896)				(25,815)
Amortization						(928)				—
Accretion						(3,070)				(3,848)
Income tax benefit (expense)						2,205				(40,688)
Tax agreement benefit (1)						—				58,595
	Derivative financial instruments:
		Exclusion of fair value mark-to-market gains (losses) (2)	$	(10,235)			$	515
		Inclusion of cash amounts paid (received) (3)(4)		724				(5,007)
Total derivative financial instruments						(9,511)				(4,492)
Goodwill impairment						—				—
Gain on sale of Decker Mine interest						—				74,262
Net income (loss)					$	8,873			$	91,069

• Changes to related deferred taxes are included in income tax benefit (expense).
• Fair value mark-to-market (gains) losses reflected on the statement of operations.
• Cash gains and losses reflected within operating cash flows.
• Excludes $991 of premiums paid in prior periods for contracts settled during the three months ended September 30,2015.

		Nine Months Ended September 30,
		2015				2014
Adjusted EBITDA
Owned and Operated Mines				$	119,221			$	126,741
Logistics and Related Activities					(33,780)				4,465
Corporate and Other					4,994				593
Subtotal reportable segments					90,435				131,799
Eliminations					(1,349)				(1,503)
Interest expense, net					(36,137)				(64,286)
Depreciation and depletion					(51,742)				(81,944)
Amortization					(2,783)				—
Accretion					(9,960)				(12,066)
Income tax benefit (expense)					12,350				(30,709)
Tax agreement benefit (1)					—				58,595
Derivative financial instruments:
	Exclusion of fair value mark-to-market gains (losses) (2)	$	(17,781)			$	16,052
	Inclusion of cash amounts paid (received) (3)(4)(5)		1,618				(16,905)
Total derivative financial instruments					(16,164)				(852)
Goodwill impairment					(33,355)				—
Gain on sale of Decker Mine interest					—				74,262
Net income (loss)				$	(48,704)			$	73,295

• Changes to related deferred taxes are included in income tax benefit (expense).
• Fair value mark-to-market (gains) losses reflected on the statement of operations.
• Cash gains and losses reflected within operating cash flows.
• Excludes $3,967 of premiums paid in prior periods for contracts settled during the nine months ended September 30,2015.
• Excludes $5,813 of premiums paid in at contract inception during the nine months ended September 30,2015.

Summary of total assets

	September 30,		December 31,
		2015		2014
Owned and Operated Mines	$	1,594,188	$	1,704,267
Logistics and Related Activities		86,356		92,347
Corporate and Other		318,297		354,846
Eliminations		(157)		(307)
Consolidated assets	$	1,998,684	$	2,151,153

Capital Expenditures

	Nine Months Ended
	September 30,
		2015		2014
Owned and Operated Mines	$	32,640	$	17,534
Logistics and Related Activities		—		37,100
Corporate and Other		3,198		3,692
Consolidated	$	35,838	$	58,326