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Supplemental Cash Flow Information (Tables)
6 Months Ended
Jun. 30, 2022
Supplemental Cash Flow Elements [Abstract]  
Net Changes In Components of Operating Assets and Liabilities
The following table provides information regarding the net changes in components of operating assets and liabilities.
 
 Six Months Ended
June 30,
 20222021
(Increase) decrease in:
Accounts receivable$(48,267)$(77,785)
Inventories(11,604)21,550 
Deferred charges34,022 9,823 
Other current assets(960)(4,835)
Increase (decrease) in:
Accounts payable(3,720)49,809 
Accrued liabilities4,299 32,710 
Net changes in components of operating assets and liabilities$(26,230)$31,272