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Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Property, Plant and Equipment
Depreciation is computed using the straight-line method over management’s estimated useful lives of the related assets. The estimated useful lives are as follows:
Years
Buildings and building improvements
15-40
Pipelines, tanks and terminals
15-40
Asset retirement obligation assets
15-50
Other equipment
3-15
Property, plant and equipment, at cost, consist of the following (in thousands):
December 31,
20222021
Land$17,367 $14,533 
Building and building improvements5,072 2,742 
Pipelines, tanks and terminals1,103,857 654,154 
Asset retirement obligation assets2,073 2,073 
Other equipment30,849 30,774 
Construction in process81,466 11,594 
Property, plant and equipment1,240,684 715,870 
Less: accumulated depreciation(316,680)(266,482)
Property, plant and equipment, net$924,004 $449,388 
Schedule of Change in Asset Retirement Obligation
The reconciliation of the beginning and ending carrying amounts of asset retirement obligations as of December 31, 2022 and 2021 is as follows (in thousands):
December 31,
20222021
Beginning balance$6,476 $6,015 
Liabilities acquired2,261 — 
Accretion expense596 461 
Ending balance$9,333 $6,476