Property and Equipment

3 Months Ended

Mar. 31, 2022

Property and Equipment

Property and Equipment

(6) Property and Equipment

Property and equipment, net consisted of the following items:

				(Unaudited)
	Estimated	December 31,		March 31,
(in thousands)	Useful Lives	2021		2022
Land	n/a	$	23,369		26,682
Gathering systems and facilities	40-50 years (1)		2,817,918		2,847,444
Permanent buried pipelines and equipment	7-20 years		582,481		584,702
Surface pipelines and equipment	1-7 years		54,542		59,681
Heavy trucks and equipment	3-5 years		5,157		5,157
Above ground storage tanks	5-10 years		2,946		2,953
Construction-in-progress	n/a		174,271		228,717
Total property and equipment			3,660,684		3,755,336
Less accumulated depreciation			(265,938)		(294,238)
Property and equipment, net		$	3,394,746		3,461,098

(1) Gathering systems and facilities are recognized as a single-leased asset with no residual value.