Employee Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2011

Employee Benefit Plans

Schedule Of Net Periodic Benefit Cost (Credit)

	Pension Plans						Post-Retirement Medical Plans
	Three Months Ended June 30,
	2011			2010			2011		2010
Components of Net Periodic Benefit Cost (Credit):
Service cost	$	169		$	(88	)	$	19	$	22
Interest cost		7,092			6,702			69		73
Expected return on plan assets		(7,644	)		(7,056	)		-		-
Amortization of:
Prior service cost (credit)		762			725			-		(435	)
Net actuarial loss		66			198			-		-
Net periodic benefit cost (credit)	$	445		$	481		$	88	$	(340	)

	Pension Plans						Post-Retirement Medical Plans
	Six Months Ended June 30,
	2011			2010			2011		2010
Components of Net Periodic Benefit Cost (Credit):
Service cost	$	332		$	260		$	34	$	40
Interest cost		14,159			13,787			139		146
Expected return on plan assets		(15,266	)		(14,429	)		-		-
Amortization of:
Prior service cost (credit)		1,502			1,476			-		(691	)
Net actuarial loss		129			399			-		-
Net periodic benefit cost (credit)	$	856		$	1,493		$	173	$	(505	)