Supplemental Cash Flow Information

9 Months Ended

Sep. 30, 2020

Supplemental Cash Flow Elements [Abstract]

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


	Nine Months Ended September 30,
	2020		2019
(Increase) decrease in:
Accounts receivable	$	165,505	$	6,294
Inventories	(24,674)		709
Deferred charges	17,616		135
Other current assets	(1,620)		(10,358)
Increase (decrease) in:
Accounts payable	(59,477)		46,530
Accrued liabilities	(25,204)		(48,954)
Net changes in components of operating assets and liabilities	$	72,146	$	(5,644)

Payments of interest and commitment fees were $138.3 million and $145.4 million for the nine months ended September 30, 2020 and September 30, 2019, respectively. We capitalized interest of $1.4 million and $2.9 million during the nine months ended September 30, 2020 and September 30, 2019, respectively.

At September 30, 2020 and September 30, 2019, we had incurred liabilities for fixed and intangible asset additions totaling $26.5 million and $17.7 million, respectively, that had not been paid at the end of the quarter, and, therefore, were not included in the caption “Payments to acquire fixed and intangible assets” under Cash Flows from Investing Activities in the Unaudited Condensed Consolidated Statements of Cash Flows.