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Properties, Plants and Equipment
 12 Months Ended
Dec. 31, 2022
Property, Plant and Equipment [Abstract]  
Properties, Plants and Equipment Properties, Plants and Equipment
The components of properties, plants and equipment are as follows:
December 31,
20222021
(In thousands)
Land, buildings and improvements$741,874 $607,554 
Refining facilities6,346,422 4,839,926 
Pipelines and terminals2,267,052 1,956,008 
Transportation vehicles43,801 27,809 
Other fixed assets422,583 306,606 
Construction in progress324,920 710,304 
10,146,652 8,448,207 
Accumulated depreciation(3,457,747)(3,033,353)
$6,688,905 $5,414,854 

We capitalized interest attributable to construction projects of $6.2 million, $15.2 million and $4.1 million for the years ended December 31, 2022, 2021 and 2020, respectively.
Depreciation expense was $442.2 million, $329.4 million and $333.0 million for the years ended December 31, 2022, 2021 and 2020, respectively.