SUMMARIZED QUARTERLY FINANCIAL INFORMATION - UNAUDITED (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Results of Operations by Quarter

The Company’s results of operations by quarter are as follows (in thousands, except per share amounts):

	Predecessor			Successor
	Period from January 1, 2017 through February 28, 2017			Period from March 1, 2017 through March 31, 2017			2017 Quarter Ended
							June 30			Sept. 30			Dec. 31
Operating revenue	$	68,922		$	25,809		$	76,722		$	79,525		$	76,327
Income (loss) from operations	$	209,119		$	(258,594	)	$	(4,519	)	$	2,653		$	5,302
Net income (loss)	$	630,317		$	(259,613	)	$	(6,461	)	$	1,297		$	17,138
Basic income (loss) per share	$	110.99		$	(12.98	)	$	(0.32	)	$	0.06		$	0.86
Diluted income (loss) per share	$	110.99		$	(12.98	)	$	(0.32	)	$	0.06		$	0.86
Write-down of oil and gas properties	$	—		$	256,435		$	—		$	—		$	—
Gain (loss) on Appalachia Properties divestiture	$	213,453		$	—		$	27		$	(132	)	$	—
Reorganization items (1)	$	(437,744	)	$	—		$	—		$	—		$	—
Other expense	$	13,336		$	—		$	814		$	47		$	369

(1) See Note 3 – Fresh Start Accounting for additional details.

	Predecessor
	2016 Quarter Ended
	March 31			June 30			Sept. 30			Dec. 31
Operating revenue	$	80,677		$	89,319		$	94,427		$	113,107
Loss from operations	$	(172,150	)	$	(174,656	)	$	(72,128	)	$	(90,234	)
Net loss	$	(188,784	)	$	(195,761	)	$	(89,635	)	$	(116,406	)
Basic loss per share	$	(33.89	)	$	(35.05	)	$	(16.01	)	$	(20.76	)
Diluted loss per share	$	(33.89	)	$	(35.05	)	$	(16.01	)	$	(20.76	)
Write-down of oil and gas properties	$	129,204		$	118,649		$	36,484		$	73,094
Restructuring fees	$	953		$	9,436		$	5,784		$	13,424
Other operational expenses (1)	$	12,527		$	27,680		$	9,059		$	6,187
Reorganization items	$	—		$	—		$	—		$	10,947

(1) See Note 19 – Other Operational Expenses for additional details.