Consolidated statements of operations - USD ($) $ in Thousands		3 Months Ended				6 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017		Mar. 21, 2017	Sep. 30, 2017		Sep. 30, 2018
Revenues:
Net commodity sales		$ 65,519	$ 75,947			$ 157,803		$ 181,835
Sublease revenue		1,199	0			0		3,595
Total revenues		66,718	75,947			157,803		185,430
Costs and expenses:
Lease operating		12,493	24,209			51,527		42,045
Production taxes		4,028	4,536			8,235		9,473
Depreciation, depletion and amortization		22,252	32,167			66,432		63,765
General and administrative		9,021	9,924			24,641		28,718
Cost reduction initiatives		210	34			155		1,034
Other		402	0			0		1,633
Total costs and expenses		48,406	73,812			157,360		146,668
Operating income		18,312	2,135			443		38,762
Non-operating (expense) income:
Interest expense		(4,205)	(5,283)			(10,984)		(7,315)
Derivative (losses) gains		(23,677)	(15,448)			(4,089)		(72,464)
(Loss) gain on sale of assets		(2,024)	(13)			(876)		(2,599)
Other income, net		19	389			696		123
Net non-operating (expense) income		(29,887)	(20,355)			(15,253)		(82,255)
Reorganization items, net		(493)	(858)			(2,548)		(2,010)
(Loss) income before income taxes		(12,068)	(19,078)			(17,358)		(45,503)
Income tax expense		0	37			75		0
Net (loss) income		$ (12,068)	$ (19,115)			$ (17,433)		$ (45,503)
Earnings per share:
Basic for Class A and Class B (in usd per share)		$ (0.27)	$ (0.42)			$ (0.39)		$ (1.01)
Diluted for Class A and Class B (in usd per share)		$ (0.27)	$ (0.42)			$ (0.39)		$ (1.01)
Weighted average shares used to compute earnings per share:
Basic for Class A and Class B		45,333,745	44,982,142			44,982,142		45,272,595
Diluted for Class A and Class B		45,333,745	44,982,142	[1]		44,982,142	[1]	45,272,595
Transportation and processing
Costs and expenses:
Cost of goods sold		$ 4,593	$ 2,942	[2]		$ 6,370	[2]	$ 11,916
Predecessor
Revenues:
Net commodity sales					$ 66,531
Sublease revenue					0
Total revenues					66,531
Costs and expenses:
Lease operating					19,941
Production taxes					2,417
Depreciation, depletion and amortization					24,915
General and administrative					6,843
Cost reduction initiatives					629
Other					0
Total costs and expenses					56,779
Operating income					9,752
Non-operating (expense) income:
Interest expense					(5,862)
Derivative (losses) gains					48,006
(Loss) gain on sale of assets					206
Other income, net					1,167
Net non-operating (expense) income					43,517
Reorganization items, net					988,727
(Loss) income before income taxes					1,041,996
Income tax expense					37
Net (loss) income					$ 1,041,959
Weighted average shares used to compute earnings per share:
Basic for Class A and Class B					0
Diluted for Class A and Class B					0
Predecessor | Transportation and processing
Costs and expenses:
Cost of goods sold	[2]				$ 2,034

[1] During the 2017 periods presented, 140,023 warrants were outstanding. All such warrants expired on June 30, 2018. The warrants to purchase shares of our Class A common stock were antidilutive due to the exercise price exceeding the average price of our Class A shares for the periods presented and due to the net losses we incurred.

[2] See “Note 5—Revenue recognition.”