Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Sales	$ 1,064.1	$ 879.8
Other revenues	262.1	147.4
Total revenues	1,326.2	1,027.2
Costs and expenses
Operating costs and expenses (exclusive of items shown separately below)	963.7	920.2
Depreciation, depletion and amortization	119.9	111.8
Asset retirement obligation expenses	14.6	13.1
Selling and administrative expenses	37.2	48.3
Restructuring charges	0.0	12.1
Other operating (income) loss:
Net gain on disposal of assets	(22.8)	(1.8)
Asset impairment	30.5	17.2
(Income) loss from equity affiliates	(15.0)	9.0
Operating profit (loss)	198.1	(102.7)
Interest expense	32.9	126.2
Interest income	(2.7)	(1.4)
Reorganization Items, net	41.4	0.0
Income (loss) from continuing operations before income taxes	126.5	(227.5)
Income tax provision (benefit)	2.2	(59.8)
Income (loss) from continuing operations, net of income taxes	124.3	(167.7)
Loss from discontinued operations, net of income taxes	(4.1)	(3.4)
Net income (loss)	120.2	(171.1)
Less: Net income attributable to noncontrolling interests	4.8	0.0
Net income (loss) attributable to common stockholders	$ 115.4	$ (171.1)
Income (loss) from continuing operations:
Basic income (loss) per share	$ 6.46	$ (9.17)
Income (Loss) from Continuing Operations, Per Diluted Share	6.44	(9.17)
Net income (loss) attributable to common stockholders:
Basic income (loss) per share	6.24	(9.35)
Diluted income (loss) per share	6.21	(9.35)
Dividends declared per share	$ 0.0000	$ 0.0000