Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2023

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information

Supplemental Cash Flow Information

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

	Year Ended December 31,
	2023		2022		2021
(Increase) decrease in:
Accounts receivable	$	159,426	$	(261,849)	$	(75,165)
Inventories	(37,566)		2,087		20,370
Deferred charges	48,835		41,634		27,390
Other current assets	(2,110)		(6,971)		(1,190)
Increase (decrease) in:
Accounts payable	(135,289)		152,138		44,119
Accrued liabilities	(29,122)		(14,857)		14,520
Net changes in components of operating assets and liabilities	$	4,174	$	(87,818)	$	30,044

Payments of interest and commitment fees were $276.2 million, $236.9 million and $202.0 million during the years ended December 31, 2023, 2022 and 2021, respectively. We capitalized interest of $43.2 million, $18.1 million and $4.4 million during the years ended December 31, 2023, 2022 and 2021, respectively.

During the years ended December 31, 2023, 2022 and 2021, we paid income taxes of $0.9 million, $1.0 million and $0.7 million, respectively.

At December 31, 2023, 2022 and 2021, we had incurred liabilities for fixed and intangible asset additions totaling $172.7 million, $93.5 million and $51.7 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 12) and our offshore growth capital projects.