Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Summary of the Company's property and equipment

The following table presents a summary of the Company’s property and equipment balances as of December 31, 2021 and 2020 (in thousands).

	December 31,
	2021		2020
Oil and natural gas properties
Evaluated (subject to amortization)	$	6,007,325	$	5,295,931
Unproved and unevaluated (not subject to amortization)	964,714		902,133
Total oil and natural gas properties	6,972,039		6,198,064
Accumulated depletion	(3,933,355)		(3,623,265)
Net oil and natural gas properties	3,038,684		2,574,799
Midstream properties
Midstream equipment and facilities	900,979		841,695
Accumulated depreciation	(92,574)		(61,113)
Net midstream properties	808,405		780,582
Other property and equipment
Furniture, fixtures and other equipment	10,923		10,591
Software	8,225		8,116
Leasehold improvements	10,975		10,854
Total other property and equipment	30,123		29,561
Accumulated depreciation	(20,527)		(17,173)
Net other property and equipment	9,596		12,388
Net property and equipment	$	3,856,685	$	3,367,769

Breakdown of the Company's unproved and unevaluated property costs not subject to amortization

The following table provides a breakdown of the Company’s unproved and unevaluated property costs not subject to amortization as of December 31, 2021 and the year in which these costs were incurred (in thousands).

Description	2021		2020		2019		2018		2017 and prior		Total
Costs incurred for
Property acquisition	$	111,120	$	40,355	$	40,140	$	417,114	$	287,666	$	896,395
Exploration wells	14,738		411		1,199		123		274		16,745
Development wells	46,232		2,027		3,245		60		10		51,574
Total	$	172,090	$	42,793	$	44,584	$	417,297	$	287,950	$	964,714