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Note D - Pension And Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2012

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,
		2012				2011				2012				2011
Service cost		$	797			$	714			$	288			$	263
Interest cost			700				767				218				277
Expected return on plan assets			(1,148	)			(1,127	)			-				-
Recognized actuarial loss (gain)			611				418				(161	)			(164	)
Net periodic benefit cost		$	960			$	772			$	345			$	376

		Pension Benefits								Postretirement Benefits
(Thousands of dollars)		Nine Months Ended September 30,								Nine Months Ended September 30,
		2012				2011				2012				2011
Service cost		$	2,391			$	2,142			$	866			$	789
Interest cost			2,102				2,301				653				831
Expected return on plan assets			(3,443	)			(3,383	)			-				-
Recognized actuarial loss (gain)			1,831				1,256				(485	)			(492	)
Net periodic benefit cost		$	2,881			$	2,316			$	1,034			$	1,128