Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

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, 2020 and 2019 (in thousands).

	December 31,
	2020		2019
Oil and natural gas properties
Evaluated (subject to amortization)	$	5,295,931	$	4,557,265
Unproved and unevaluated (not subject to amortization)	902,133		1,126,992
Total oil and natural gas properties	6,198,064		5,684,257
Accumulated depletion	(3,623,265)		(2,603,681)
Net oil and natural gas properties	2,574,799		3,080,576
Midstream properties
Midstream equipment and facilities	841,695		643,903
Accumulated depreciation	(61,113)		(38,473)
Net midstream properties	780,582		605,430
Other property and equipment
Furniture, fixtures and other equipment	10,591		9,170
Software	8,116		8,099
Leasehold improvements	10,854		9,752
Total other property and equipment	29,561		27,021
Accumulated depreciation	(17,173)		(13,432)
Net other property and equipment	12,388		13,589
Net property and equipment	$	3,367,769	$	3,699,595

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, 2020 and the year in which these costs were incurred (in thousands).

Description	2020		2019		2018		2017 and prior		Total
Costs incurred for
Property acquisition	$	40,355	$	40,140	$	472,577	$	315,736	$	868,808
Exploration wells	576		1,855		169		397		2,997
Development wells	25,324		4,889		66		49		30,328
Total	$	66,255	$	46,884	$	472,812	$	316,182	$	902,133