PROPERTY AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2024

PROPERTY AND EQUIPMENT

Schedule of property and equipment

	June 30, 2024		December 31, 2023
	(in thousands)
Machinery and equipment	$	605,702	$	608,780
Gathering and disposal infrastructure		247,756		87,354
Buildings and leasehold improvements		109,051		111,650
Pipelines		103,171		103,171
Recycling facilities		88,461		68,875
Land		35,085		23,745
Vehicles and equipment		16,565		19,007
Computer equipment and software		5,759		3,038
Computer equipment and software - finance lease		884		883
Office furniture and equipment		467		772
Machinery and equipment - finance lease		519		519
Vehicles and equipment - finance lease		27		27
Construction in progress		98,792		117,168
		1,312,239		1,144,989
Less accumulated depreciation(1)		(663,284)		(627,408)
Total property and equipment, net	$	648,955	$	517,581

(1) Includes $0.8 million and $0.7 million of accumulated depreciation related to finance leases as of June 30, 2024 and December 31, 2023, respectively.

Schedule of amortization of intangible assets

	Three months ended June 30,				Six months ended June 30,
	2024		2023		2024		2023
	(in thousands)
Category
Depreciation expense from property and equipment	$	33,760	$	30,877	$	67,524	$	60,393
Amortization expense from finance leases		51		4		113		9
Amortization expense from intangible assets		4,129		4,787		8,199		8,548
Accretion expense from asset retirement obligations		253		254		507		510
Total depreciation, amortization and accretion	$	38,193	$	35,922	$	76,343	$	69,460