Accounts Payable And Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Accounts Payable And Accrued Liabilities [Abstract]

Schedule Of Accounts Payable And Accrued Liabilities

	December 31,
(Thousands of dollars)	2013		2012
Trade accounts payable	$	311,397		612,755
Excise taxes/withholdings payable		55,882		65,349
Accrued insurance obligations		17,247		7,085
Other		48,702		20,298
Accounts payable and accrued liabilities	$	433,228		705,487