Divestitures, Assets Held for Sale, and Acquisitions (Tables)

12 Months Ended

Dec. 31, 2019

Divestitures, Assets Held for Sale, and Acquisitions Disclosure [Abstract]

Income (loss) before income taxes from sold assets [Table Text Block]

The following table presents loss before income taxes from the Divide County, North Dakota assets sold for the years ended December 31, 2019, 2018, and 2017. The Divide County Divestiture was considered a disposal of a significant asset group.

	For the Years Ended December 31,
	2019		2018			2017
	(in thousands)
Loss before income taxes (1)	$	—	$	(28,975	)	$	(468,786	)

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Loss before income taxes reflects oil, gas, and NGL production revenue, less oil, gas, and NGL production expense, depletion, depreciation, amortization, and asset retirement obligation liability accretion expense, impairment expense, and net loss on divestiture activity. During the year ended December 31, 2017, the Company recorded a write-down of $523.6 million on these assets.