Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2021

Revenue Recognition and Deferred Revenue [Abstract]

Disaggregation of Revenue [Table Text Block]

Disaggregated Revenue. The following table presents crude oil, natural gas and NGLs sales disaggregated by commodity and operating region for the periods presented:

	Three Months Ended March 31,
Revenue by Commodity and Operating Region	2021		2020		Percent Change
	(in thousands)
Crude oil
Wattenberg Field	$	235,963	$	206,649	14	%
Delaware Basin	37,688		42,525		(11)	%
Total	273,651		249,174		10	%
Natural gas
Wattenberg Field	97,022		40,078		142	%
Delaware Basin (1)	8,624		(563)		*
Total	105,646		39,515		167	%
NGLs
Wattenberg Field	77,777		25,241		208	%
Delaware Basin	11,045		6,385		73	%
Total	88,822		31,626		181	%
Crude oil, natural gas and NGLs
Wattenberg Field	410,762		271,968		51	%
Delaware Basin	57,357		48,347		19	%
Total	$	468,119	$	320,315	46	%

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* Percent change is not meaningful.

(1)Negative natural gas revenue was due to the deduction for transportation, gathering and processing by the purchaser exceeding the average sales price.

Contract with Customer, Asset and Liability

The following table presents the changes in carrying amounts of the contract assets associated with our crude oil, natural gas and NGLs sales revenue for the three months ended March 31, 2021:

	(in thousands)
Beginning balance	$	25,872
Reduction to additions previously recognized	(1,134)
Amortized as a reduction to crude oil, natural gas and NGLs sales	(751)
Ending balance	$	23,987