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Inventories (Tables)
12 Months Ended
Dec. 31, 2021
Inventory Disclosure [Abstract]  
Components of Inventory
Components of inventories at December 31, 2021 and 2020 were as follows: 
 20212020
Natural gas liquids$20,034 $27,878 
Sulfur612 24 
Fertilizer13,005 10,854 
Lubricants23,876 11,002 
Other4,593 4,364 
 $62,120 $54,122