Net Earnings per Limited Partner Common Unit

12 Months Ended

Dec. 31, 2011

Net Earnings per Limited Partner Common Unit

Net Earnings per Limited Partner Common Unit

5.     Net Earnings per Limited Partner Common Unit

        Basic and diluted earnings per common unit is based on the weighted-average number of common units outstanding during the period. The following table provides a reconciliation for basic and diluted earnings per common unit for the years ended December 31, 2011, 2010, and 2009:

	Year ended December 31,
	2011		2010		2009
	(in millions, except per unit amounts)
Basic earnings per common unit:
Net earnings	$	508.0	$	201.6	$	144.3
Less: Net earnings allocable to General Partner		219.4		51.4		42.9
Less: Net earnings allocable to Class B Common Units		5.0		2.0		1.4
Net earnings allocable to Common Units	$	283.6	$	148.2	$	100.0
Weighted average units outstanding		18.5		18.5		18.5
Net earnings per Common Unit	$	15.33	$	8.01	$	5.40

        There were no dilutive TNCLP units outstanding for the years ended December 31, 2011, 2010 and 2009.