Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Successor
Revenues
Sales	$ 1,269.1
Other revenues	193.6
Total revenues	1,462.7
Costs and expenses
Operating costs and expenses (exclusive of items shown separately below)	1,057.2
Depreciation, depletion and amortization	169.6
Asset retirement obligation expenses	12.3
Selling and administrative expenses	37.0
Other operating (income) loss:
Net gain on disposals	(30.6)
Asset impairment	0.0
Income from equity affiliates	(22.0)
Operating profit	239.2
Interest expense	(36.3)
Interest income	(7.2)
Net periodic benefit costs, excluding service cost	4.5
Reorganization items, net	(12.8)
Income from continuing operations before income taxes	218.4
Income tax provision	10.1
Income from continuing operations, net of income taxes	208.3
Loss from discontinued operations, net of income taxes	(1.3)
Net income	207.0
Less: Series A Convertible Preferred Stock dividends	102.5
Less: Net (loss) income attributable to noncontrolling interests	(2.1)
Net income attributable to common stockholders	$ 106.6
Income from continuing operations:
Basic income per share (in dollars per share)	$ 0.84
Diluted income per share (in dollars per share)	0.83
Net income attributable to common stockholders:
Basic income per share (in dollars per share)	0.83
Diluted income per share (in dollars per share)	0.82
Dividends declared per share (in dollars per share)	$ 0.115
Predecessor
Revenues
Sales		$ 1,081.4
Other revenues		244.8
Total revenues		1,326.2
Costs and expenses
Operating costs and expenses (exclusive of items shown separately below)		950.2
Depreciation, depletion and amortization		119.9
Asset retirement obligation expenses		14.6
Selling and administrative expenses		36.3
Other operating (income) loss:
Net gain on disposals		(22.8)
Asset impairment		30.5
Income from equity affiliates		(15.0)
Operating profit		212.5
Interest expense		(32.9)
Interest income		(2.7)
Net periodic benefit costs, excluding service cost		14.4
Reorganization items, net		41.4
Income from continuing operations before income taxes		126.5
Income tax provision		2.2
Income from continuing operations, net of income taxes		124.3
Loss from discontinued operations, net of income taxes		(4.1)
Net income		120.2
Less: Series A Convertible Preferred Stock dividends		0.0
Less: Net (loss) income attributable to noncontrolling interests		4.8
Net income attributable to common stockholders		$ 115.4
Income from continuing operations:
Basic income per share (in dollars per share)		$ 6.46
Diluted income per share (in dollars per share)		6.44
Net income attributable to common stockholders:
Basic income per share (in dollars per share)		6.24
Diluted income per share (in dollars per share)		6.21
Dividends declared per share (in dollars per share)		$ 0