Property, Plant and Equipment

3 Months Ended

Mar. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Note 4. Property, Plant and Equipment

Property, plant and equipment, at cost, is as follows:

	Estimated useful lives	March 31, 2023			December 31, 2022
(in millions, except for number of years)
Gathering assets
Pipelines	22 years	$	1,605.4		$	1,591.7
Compressors, pumping stations and terminals	22 to 25 years		930.5			923.1
Gas plant assets
Pipelines, pipes and valves	22 to 25 years		460.0			460.0
Equipment	12 to 30 years		428.2			428.2
Processing and fractionation facilities	25 years		414.8			414.4
Buildings	35 years		182.3			182.3
Logistics facilities and railcars	20 to 25 years		389.3			389.3
Storage facilities	20 to 25 years		19.7			19.7
Other	20 to 25 years		25.6			25.5
Construction-in-progress	N/A		172.0			136.3
Total property, plant and equipment, at cost			4,627.8			4,570.5
Accumulated depreciation			(1,444.8	)		(1,397.7	)
Property, plant and equipment, net		$	3,183.0		$	3,172.8