STATEMENTS OF CASH FLOWS

Changes in current assets and current liabilities were as follows:



	Six Months Ended June 30,
	2018			2017
	(Thousands of Dollars)
Decrease (increase) in current assets:
Accounts receivable	$	34,518		$	48,875
Receivable from related party	130			231
Inventories	(1,233		)	13,005
Other current assets	(2,494		)	(2,388		)
Increase (decrease) in current liabilities:
Accounts payable	5,149			(57,822		)
Accrued interest payable	(4,325		)	6,234
Accrued liabilities	10,476			(14,703		)
Taxes other than income tax	1,329			(3,094		)
Income tax payable	(817		)	(5,682		)
Changes in current assets and current liabilities	$	42,733		$	(15,344	)

The above changes in current assets and current liabilities differ from changes between amounts reflected in the applicable consolidated balance sheets due to:


•	current assets and current liabilities acquired during the period;


•	the change in the amount accrued for capital expenditures;


•	the effect of foreign currency translation; and


•	changes in the fair values of our interest rate swap agreements.

Cash flows related to interest and income taxes were as follows:



	Six Months Ended June 30,
	2018		2017
	(Thousands of Dollars)
Cash paid for interest, net of amount capitalized	$	96,761	$	70,119
Cash paid for income taxes, net of tax refunds received	$	7,973	$	9,556