Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2022

Supplemental Cash Flow Elements [Abstract]

The following table provides information regarding the net changes in components of operating assets and liabilities:


	Year Ended December 31,
	2022		2021		2020
(Increase) decrease in:
Accounts receivable	$	(261,849)	$	(75,165)	$	88,116
Inventories	2,087		20,370		(34,740)
Deferred charges	41,634		27,390		24,590
Other current assets	(6,971)		(1,190)		1,188
Increase (decrease) in:
Accounts payable	152,138		44,119		(9,742)
Accrued liabilities	(14,857)		14,520		(30,785)
Net changes in components of operating assets and liabilities	$	(87,818)	$	30,044	$	38,627

Payments of interest and commitment fees were $236.9 million, $202.0 million and $200.6 million during the years ended December 31, 2022, 2021 and 2020, respectively. We capitalized interest of $18.1 million, $4.4 million and $1.9 million during the years ended December 31, 2022, 2021 and 2020, respectively.

During the years ended December 31, 2022, 2021 and 2020, we paid taxes of $1.0 million, $0.7 million and $0.8 million, respectively.

At December 31, 2022, 2021 and 2020, we had incurred liabilities for fixed and intangible asset additions totaling $93.5 million, $51.7 million and $29.1 million, respectively, which had not been paid at the end of the year. Therefore, these amounts were not included in the caption “Payments to acquire fixed and intangible assets” under Cash Flows from Investing Activities in the Consolidated Statements of Cash Flows. The increase in this amount is principally due to the increase in capital expenditures associated with our Granger Optimization Project (Note 11) and our offshore growth capital projects.