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PROPERTY AND EQUIPMENT (Tables)

6 Months Ended

Jun. 30, 2026

PROPERTY AND EQUIPMENT

Schedule of property and equipment, net

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​	​	​	​	​	​	​
​	​ ​ ​	​	​	​	​	​
​	​ ​ ​	June 30, 2026		​ ​ ​	December 31, 2025
​	​	(in thousands)
Machinery and equipment	​	$	574,611	​	$	561,560
Gathering and disposal infrastructure	​		466,695	​		418,044
Pipelines	​	​	262,302	​	​	226,303
Recycling facilities	​	​	184,521	​	​	168,714
Buildings and leasehold improvements	​		115,444	​		108,872
Land	​	​	54,931	​	​	46,412
Computer equipment and software	​	​	7,796	​	​	8,260
Vehicles and equipment	​		5,335	​		7,247
Machinery and equipment - finance lease	​		3,137	​		3,137
Office furniture and equipment	​		1,208	​		1,213
Computer equipment and software - finance lease	​		815	​		824
Construction in progress	​		119,771	​		78,820
​	​		1,796,566	​		1,629,406
Less accumulated depreciation(1)	​		(770,358)	​		(717,223)
Total property and equipment, net	​	$	1,026,208	​	$	912,183

(1) Includes $1.9 million and $1.6 million of accumulated depreciation related to finance leases as of June 30, 2026 and December 31, 2025, respectively.

Schedule of amortization and depreciation expenses

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Three months ended June 30,

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Six months ended June 30,

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2026

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2025

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2026

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2025

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(in thousands)

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Category

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Depreciation expense from property and equipment

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$

42,561

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$

37,376

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$

83,602

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$

71,420

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Amortization expense from finance leases

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180

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182

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361

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351

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Amortization expense from intangible assets

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4,386

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4,378

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8,765

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8,756

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Accretion expense from asset retirement obligations

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1,307

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1,036

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2,569

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2,045

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Total depreciation, amortization and accretion

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$

48,434

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$

42,972

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$

95,297

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$

82,572

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

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- Definition

Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name Accounting Standards Codification
-Section 55
-Paragraph 40
-SubTopic 30
-Topic 350
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482640/350-30-55-40

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482665/350-30-50-2

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