Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2013

Long-Term Debt [Abstract]

Summary Of Long-Term Debt

	December 31,
(Thousands of dollars)	2013		2012
Loan for electrical facilities at the Hankinson, North Dakota ethanol plant, 6.00%, due through 2028*	$	-	$	1,170
6.00% senior notes due 2023 (net of unamortized discount of $8,422)		491,578		-
Term loan due 2016 (effective rate of 3.71% at December 31, 2013)		70,000		-
Less current maturities		(14,000)		(46)
Total long-term debt	$	547,578	$	1,124