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Note D - Pension And Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Costs of Retirement Plans [Table Text Block]

		Pension Benefits								Postretirement Benefits
(Thousands of dollars)		Three Months Ended September 30,								Three Months Ended September 30,
		2013				2012				2013				2012
Service cost		$	748			$	797			$	288			$	288
Interest cost			734				700				182				218
Expected return on plan assets			(1,229	)			(1,148	)			-				-
Recognized actuarial loss (gain)			478				611				(181	)			(161	)
Settlement loss			490				-				-				-
Net periodic benefit cost		$	1,221			$	960			$	289			$	345

		Pension Benefits								Postretirement Benefits
(Thousands of dollars)		Nine Months Ended September 30,								Nine Months Ended September 30,
		2013				2012				2013				2012
Service cost		$	2,408			$	2,391			$	865			$	866
Interest cost			2,097				2,102				545				653
Expected return on plan assets			(3,828	)			(3,443	)			-				-
Recognized actuarial loss (gain)			1,622				1,831				(542	)			(485	)
Settlement loss			3,477				-				-				-
Net periodic benefit cost		$	5,776			$	2,881			$	868			$	1,034