| Schedule of property and equipment |
Property and equipment consisted of the following (in thousands): | | | | | | | | | | | | | June 30,
2025 | | December 31,
2024 | | Compression and treating equipment | $ | 4,168,616 | | | $ | 4,134,544 | | | Automobiles and vehicles | 58,965 | | | 53,301 | | | Computer equipment | 37,592 | | | 38,614 | | | Leasehold improvements | 10,071 | | | 9,807 | | | Buildings | 3,935 | | | 3,935 | | | Furniture and fixtures | 977 | | | 963 | | | Land | 77 | | | 77 | | | Total property and equipment, gross | 4,280,233 | | | 4,241,241 | | | Less: accumulated depreciation and amortization | (2,079,810) | | | (1,967,865) | | | Total property and equipment, net | $ | 2,200,423 | | | $ | 2,273,376 | |
Depreciation expense on property and equipment and loss (gain) on disposition of assets were as follows (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended June 30, | | Six Months Ended June 30, | | | 2025 | | 2024 | | 2025 | | 2024 | | Depreciation expense | $ | 63,496 | | | $ | 57,968 | | | $ | 126,544 | | | $ | 113,874 | | | Loss (gain) on disposition of assets | 39 | | | (18) | | | 1,364 | | | 1,236 | |
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| Schedule of estimated useful lives of property, plant, and equipment |
Depreciation is calculated using the straight-line method over the estimated useful lives of the assets as follows: | | | | | | | Compression and treating equipment, acquired new | 25 years | | Compression and treating equipment, acquired used | 5 - 25 years | | Furniture and fixtures | 3 - 10 years | Vehicles and computer equipment | 1 - 10 years | Buildings | 5 years | Leasehold improvements | 5 years |
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| Schedule of identifiable intangible assets |
Identifiable intangible assets, net consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | Customer Relationships | | Trade Names | | Total | | Net balance as of December 31, 2024 | $ | 198,534 | | | $ | 17,739 | | | $ | 216,273 | | | Amortization expense | (13,052) | | | (1,638) | | | (14,690) | | | Net balance as of June 30, 2025 | $ | 185,482 | | | $ | 16,101 | | | $ | 201,583 | |
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