Segment Information (Tables)

6 Months Ended

Jun. 30, 2015

Segment Information

Schedule of revenue

	Three Months Ended				Six Months Ended
	June 30,				June 30,
		2015		2014		2015		2014
Owned and Operated Mines	$	206,279	$	272,099	$	468,078	$	541,698
Logistics and Related Activities		48,591		54,683		118,031		113,196
Corporate and Other		1,219		8,267		6,450		12,639
Eliminations of intersegment sales		(11,941)		(14,198)		(30,858)		(27,617)
Consolidated revenue	$	244,148	$	320,850	$	561,701	$	639,916

Summary of total revenue from external customers by geographic location

		Three Months Ended				Six Months Ended
		June 30,				June 30,
		2015		2014		2015		2014
United States		$	202,675	$	267,489	$	460,809	$	534,718
South Korea			35,470		27,482		85,481		78,425
Other			6,003		25,879		15,411		26,773
	Total revenue from external customers	$	244,148	$	320,850	$	561,701	$	639,916

Summary of Adjusted EBITDA

			Three Months Ended June 30,
			2015				2014
Adjusted EBITDA
Owned and Operated Mines					$	17,130			$	41,956
Logistics and Related Activities						(6,392)				2,699
Corporate and Other						362				1,420
	Subtotal reportable segments					11,100				46,075
Eliminations						(456)				(848)
Interest expense, net						(12,571)				(13,752)
Depreciation and depletion						(19,310)				(29,200)
Amortization						(928)				—
Accretion						(3,348)				(4,088)
Income tax benefit (expense)						9,866				3,489
Tax agreement (expense) benefit (1)						—				—
	Derivative financial instruments:
		Exclusion of fair value mark-to-market gains (losses) (2)	$	(2,761)			$	2,803
		Inclusion of cash amounts (received) paid (3) (4) (5)		(1,135)				(6,628)
Total derivative financial instruments						(3,896)				(3,825)
Goodwill impairment						(33,355)				—
Net income (loss)					$	(52,897)			$	(2,148)

• Changes to related deferred taxes are included in income tax expense.
• Fair value mark-to-market (gains) losses reflected on the statement of operations.
• Cash gains and losses reflected within operating cash flows.
• Excludes premiums paid in prior periods for contracts settled during the period $ 992 $ —
• Excludes premiums paid at contract inception during the period $ 5,813 $ —

		Six Months Ended June 30,
		2015				2014
Adjusted EBITDA
Owned and Operated Mines				$	61,426			$	83,152
Logistics and Related Activities					(14,730)				3,070
Corporate and Other					4,481				(448)
Subtotal reportable segments					51,177				85,774
Eliminations					(1,112)				(1,199)
Interest expense, net					(25,190)				(51,622)
Depreciation and depletion					(43,846)				(56,128)
Amortization					(1,855)				—
Accretion					(6,890)				(8,217)
Income tax benefit (expense)					10,146				9,979
Tax agreement (expense) benefit (1)					—				—
Derivative financial instruments:
	Exclusion of fair value mark-to-market gains (losses) (2)	$	(7,546)			$	15,537
	Inclusion of cash amounts received (3)(4) (5)		894				(11,898)
Total derivative financial instruments					(6,652)				3,640
Goodwill impairment					(33,355)				—
Net income (loss)				$	(57,577)			$	(17,774)

• Changes to related deferred taxes are included in income tax expense.
• Fair value mark-to-market (gains) losses reflected on the statement of operations.
• Cash gains and losses reflected within operating cash flows.
• Excludes premiums paid in prior periods for contracts settled during the period $ 2,976 $ —

Summary of total assets

	June 30,		December 31,
		2015		2014
Owned and Operated Mines	$	1,631,506	$	1,704,267
Logistics and Related Activities		87,627		92,347
Corporate and Other		274,437		363,611
Eliminations		(47)		(307)
Consolidated assets	$	1,993,523	$	2,159,918

Capital Expenditures

	Six Months Ended
	June 30,
		2015		2014
Owned and Operated Mines	$	22,327	$	8,930
Logistics and Related Activities		—		—
Corporate and Other		2,185		1,840
Consolidated	$	24,512	$	10,770