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Note E - Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Costs of Retirement Plans [Table Text Block]

		Pension Benefits								Postretirement Benefits
(Thousands of dollars)		Three Months Ended June 30,								Three Months Ended June 30,
		2014				2013				2014				2013
Service cost		$	726			$	811			$	226			$	289
Interest cost			728				697				212				181
Expected return on plan assets			(1,170	)			(1,306	)			-				-
Recognized actuarial loss (gain)			457				532				(380	)			(180	)
Settlement loss			-				1,601				-				-
Net periodic benefit cost		$	741			$	2,335			$	58			$	290

		Pension Benefits								Postretirement Benefits
(Thousands of dollars)		Six Months Ended June 30,								Six Months Ended June 30,
		2014				2013				2014				2013
Service cost		$	1,452			$	1,660			$	453			$	577
Interest cost			1,448				1,363				424				363
Expected return on plan assets			(2,378	)			(2,599	)			-				-
Recognized actuarial loss (gain)			915				1,144				(577	)			(361	)
Settlement loss			-				2,987				-				-
Net periodic benefit cost		$	1,437			$	4,555			$	300			$	579