Intangible Assets and Goodwill (Tables)

6 Months Ended

Jun. 30, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets by Segment

The following table summarizes our intangible assets by business segment at the dates indicated:

	June 30, 2011							December 31, 2010
	Gross Value		Accum. Amort.			Carrying Value		Gross Value		Accum. Amort.			Carrying Value
NGL Pipelines & Services:
Customer relationship intangibles	$	340.8	$	(117.6	)	$	223.2	$	340.8	$	(106.7	)	$	234.1
Contract-based intangibles		287.5		(161.4	)		126.1		322.2		(176.6	)		145.6
Segment total		628.3		(279.0	)		349.3		663.0		(283.3	)		379.7
Onshore Natural Gas Pipelines & Services:
Customer relationship intangibles		1,163.6		(185.5	)		978.1		1,163.6		(160.8	)		1,002.8
Contract-based intangibles		551.5		(323.6	)		227.9		565.3		(322.0	)		243.3
Segment total		1,715.1		(509.1	)		1,206.0		1,728.9		(482.8	)		1,246.1
Onshore Crude Oil Pipelines & Services:
Customer relationship intangibles		9.7		(3.9	)		5.8		9.7		(3.7	)		6.0
Contract-based intangibles		0.4		(0.2	)		0.2		0.4		(0.2	)		0.2
Segment total		10.1		(4.1	)		6.0		10.1		(3.9	)		6.2
Offshore Pipelines & Services:
Customer relationship intangibles		205.8		(123.8	)		82.0		205.8		(118.1	)		87.7
Contract-based intangibles		1.2		(0.3	)		0.9		1.2		(0.2	)		1.0
Segment total		207.0		(124.1	)		82.9		207.0		(118.3	)		88.7
Petrochemical & Refined Products Services:
Customer relationship intangibles		104.8		(26.5	)		78.3		104.7		(23.8	)		80.9
Contract-based intangibles		57.8		(23.7	)		34.1		60.3		(20.2	)		40.1
Segment total		162.6		(50.2	)		112.4		165.0		(44.0	)		121.0
Total all segments	$	2,723.1	$	(966.5	)	$	1,756.6	$	2,774.0	$	(932.3	)	$	1,841.7

Amortization Expense of Intangible Assets by Segment

The following table presents the amortization expense of our intangible assets by business segment for the periods presented:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2011		2010		2011		2010
NGL Pipelines & Services	$	10.0	$	10.1	$	20.4	$	19.4
Onshore Natural Gas Pipelines & Services		20.2		18.1		40.1		32.3
Onshore Crude Oil Pipelines & Services		0.1		0.1		0.2		0.2
Offshore Pipelines & Services		2.8		3.2		5.8		6.6
Petrochemical & Refined Products Services		4.3		2.6		8.6		5.2
Total	$	37.4	$	34.1	$	75.1	$	63.7

Forecasted Amortization Expense

The following table presents forecast amortization expense associated with existing intangible assets for the years presented:

Remainder of 2011		2012		2013		2014		2015
$	69.7	$	132.4	$	127.1	$	127.2	$	125.8

Changes in Carrying Amount of Goodwill

The following table presents changes in the carrying amount of goodwill for the period presented:

	NGL Pipelines & Services		Onshore Natural Gas Pipelines & Services		Onshore Crude Oil Pipelines & Services		Offshore Pipelines & Services		Petrochemical & Refined Products Services			Consolidated Total
Balance at December 31, 2010 (1)	$	341.2	$	311.1	$	311.2	$	82.1	$	1,062.1		$	2,107.7
Goodwill adjustment (2)		--		--		--		--		(0.6	)		(0.6	)
Balance at June 30, 2011 (1)	$	341.2	$	311.1	$	311.2	$	82.1	$	1,061.5		$	2,107.1
(1)   The total carrying amount of goodwill at June 30, 2011 and December 31, 2010 is presented net of $1.3 million of accumulated impairment charges. (2)   Purchase price adjustment related to a marine business combination completed in November 2010.