Earnings Per Unit (Tables)

6 Months Ended

Jun. 30, 2011

Notes To Financial Statements [Abstract]

Reconciliation of numerators and denominators of the basic and diluted per unit computations for net income (loss)

The following table provides a reconciliation of the numerators and denominators of the basic and diluted per unit computations for net income (loss):

	Net Income (Loss) (Numerator)			Units (Denominator)		Per Unit Amount
	(in thousands)
Three months ended June 30, 2011:
Net income:
Allocated to units	$	237,109
Allocated to unvested restricted units		(2,475	)
	$	234,634
Net income per unit:
Basic net income per unit					175,035	$	1.34
Dilutive effect of unit equivalents					762		(0.01	)
Diluted net income per unit					175,797	$	1.33
Three months ended June 30, 2010:
Net income:
Allocated to units	$	59,786
Allocated to unvested restricted units		(592	)
	$	59,194
Net income per unit:
Basic net income per unit					146,124	$	0.41
Dilutive effect of unit equivalents					338		(0.01	)
Diluted net income per unit					146,462	$	0.40
Six months ended June 30, 2011:
Net loss:
Allocated to units	$	(209,573	)
Allocated to unvested restricted units		(2,439	)
	$	(212,012	)
Net loss per unit:
Basic net loss per unit					169,104	$	(1.25	)
Dilutive effect of unit equivalents					-		-
Diluted net loss per unit					169,104	$	(1.25	)
Six months ended June 30, 2010:
Net income:
Allocated to units	$	125,096
Allocated to unvested restricted units		(1,336	)
	$	123,760
Net income per unit:
Basic net income per unit					137,874	$	0.90
Dilutive effect of unit equivalents					360		-
Diluted net income per unit					138,234	$	0.90