Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues
Sales	$ 1,277.4	$ 1,550.5	$ 3,922.9	$ 4,619.3
Other revenues	141.5	172.4	373.2	488.4
Total revenues	1,418.9	1,722.9	4,296.1	5,107.7
Costs and expenses
Operating costs and expenses (exclusive of items shown separately below)	1,254.0	1,453.3	3,774.4	4,315.7
Depreciation, depletion and amortization	136.0	163.6	430.6	483.9
Asset retirement obligation expenses	12.3	15.0	40.4	46.5
Selling and administrative expenses	37.8	52.9	128.8	171.6
Restructuring charges	1.8	0.0	23.0	0.0
Other operating (income) loss:
Net gain on disposal of assets	(7.9)	(13.9)	(20.2)	(25.9)
Asset impairment	0.0	0.0	900.8	0.0
Loss from equity affiliates	5.3	15.8	12.3	44.0
Operating (loss) profit	(20.4)	36.2	(994.0)	71.9
Interest expense	118.5	114.5	344.0	321.4
Loss on early debt extinguishment	0.0	0.0	67.8	1.6
Interest income	(1.4)	(3.7)	(6.6)	(11.7)
Loss from continuing operations before income taxes	(137.5)	(74.6)	(1,399.2)	(239.4)
Income tax provision (benefit)	6.9	79.4	(83.2)	30.9
Loss from continuing operations, net of income taxes	(144.4)	(154.0)	(1,316.0)	(270.3)
(Loss) income from discontinued operations, net of income taxes	(157.5)	5.0	(202.7)	6.0
Net loss	(301.9)	(149.0)	(1,518.7)	(264.3)
Less: Net income attributable to noncontrolling interests	2.8	1.6	7.9	8.1
Net loss attributable to common stockholders	$ (304.7)	$ (150.6)	$ (1,526.6)	$ (272.4)
Loss from continuing operations:
Basic loss per share	$ (8.08)	$ (8.72)	$ (73.05)	$ (15.62)
Diluted loss per share	(8.08)	(8.72)	(73.05)	(15.62)
Net loss attributable to common stockholders:
Basic loss per share	(16.73)	(8.44)	(84.23)	(15.29)
Diluted loss per share	(16.73)	(8.44)	(84.23)	(15.29)
Dividends declared per share	$ 0.0000	$ 1.275	$ 0.0750	$ 3.825