| Schedule of property and equipment, net |
| | | | | | | | | | | | | | | | March 31, 2026 | | December 31, 2025 | | | | (in thousands) | Machinery and equipment | | $ | 562,717 | | $ | 561,560 | Gathering and disposal infrastructure | | | 428,496 | | | 418,044 | Pipelines | | | 236,550 | | | 226,303 | Recycling facilities | | | 176,039 | | | 168,714 | Buildings and leasehold improvements | | | 107,789 | | | 108,872 | Land | | | 46,412 | | | 46,412 | Computer equipment and software | | | 7,914 | | | 8,260 | Vehicles and equipment | | | 6,250 | | | 7,247 | Machinery and equipment - finance lease | | | 3,137 | | | 3,137 | Office furniture and equipment | | | 1,195 | | | 1,213 | Computer equipment and software - finance lease | | | 824 | | | 824 | Construction in progress | | | 95,643 | | | 78,820 | | | | 1,672,966 | | | 1,629,406 | Less accumulated depreciation(1) | | | (736,935) | | | (717,223) | Total property and equipment, net | | $ | 936,031 | | $ | 912,183 |
| (1) | Includes $1.7 million and $1.6 million of accumulated depreciation related to finance leases as of March 31, 2026 and December 31, 2025, respectively. |
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| Schedule of amortization and depreciation expenses |
| | | | | | | | | | Three months ended March 31, | | | | 2026 | | 2025 | | | | | (in thousands) | | Category | | | | | | | | Depreciation expense from property and equipment | | $ | 41,041 | | $ | 34,044 | | Amortization expense from finance leases | | | 181 | | | 169 | | Amortization expense from intangible assets | | | 4,379 | | | 4,378 | | Accretion expense from asset retirement obligations | | | 1,262 | | | 1,009 | | Total depreciation, amortization and accretion | | $ | 46,863 | | $ | 39,600 | |
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