| Property, Plant, and Equipment Table |
A summary of the historical cost of property, plant, and equipment is as follows: | | | | | | | | | | | | | | | | | | | | | | | | | December 31, | | thousands | | Estimated Useful Life | | 2024 | | 2023 | | | | | | | | | Land | | N/A | | $ | 13,041 | | | $ | 12,504 | | | Gathering systems – pipelines | | 30 years | | 5,848,865 | | | 5,890,607 | | | Gathering systems – compressors | | 15 years | | 2,718,145 | | | 2,553,602 | | | Processing complexes and treating facilities | | 25 years | | 4,046,670 | | | 3,745,332 | | | Transportation pipeline and equipment | | 3 to 48 years | | 257,289 | | | 259,314 | | Produced-water disposal systems | | 20 years | | 1,198,742 | | | 1,098,616 | | | Assets under construction | | N/A | | 460,056 | | | 479,368 | | | Other | | 3 to 40 years | | 967,102 | | | 906,088 | | | Total property, plant, and equipment | | | | 15,509,910 | | | 14,945,431 | | | Less accumulated depreciation | | | | 5,795,301 | | | 5,290,415 | | | Net property, plant, and equipment | | | | $ | 9,714,609 | | | $ | 9,655,016 | |
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