Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2011

Intangible Assets and Goodwill [Abstract]

Intangible Assets by Segment

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

	December 31, 2011							December 31, 2010
	Gross Value		Accum. Amort.			Carrying Value		Gross Value		Accum. Amort.			Carrying Value
NGL Pipelines & Services:
Customer relationship intangibles	$	340.8	$	(128.2	)	$	212.6	$	340.8	$	(106.7	)	$	234.1
Contract-based intangibles (1)		298.4		(169.7	)		128.7		322.2		(176.6	)		145.6
Segment total		639.2		(297.9	)		341.3		663.0		(283.3	)		379.7
Onshore Natural Gas Pipelines & Services:
Customer relationship intangibles		1,163.6		(209.7	)		953.9		1,163.6		(160.8	)		1,002.8
Contract-based intangibles (2)		464.8		(290.9	)		173.9		565.3		(322.0	)		243.3
Segment total		1,628.4		(500.6	)		1,127.8		1,728.9		(482.8	)		1,246.1
Onshore Crude Oil Pipelines & Services:
Customer relationship intangibles		9.7		(4.1	)		5.6		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		(4.3	)		5.8		10.1		(3.9	)		6.2
Offshore Pipelines & Services:
Customer relationship intangibles		205.8		(129.2	)		76.6		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		(129.5	)		77.5		207.0		(118.3	)		88.7
Petrochemical & Refined Products Services:
Customer relationship intangibles		104.3		(28.4	)		75.9		104.7		(23.8	)		80.9
Contract-based intangibles		57.6		(29.7	)		27.9		60.3		(20.2	)		40.1
Segment total		161.9		(58.1	)		103.8		165.0		(44.0	)		121.0
Total all segments	$	2,646.6	$	(990.4	)	$	1,656.2	$	2,774.0	$	(932.3	)	$	1,841.7
(1)   In March 2011, we sold two NGL fractionators that were not strategic to our operations and the related contract-based intangible assets. (2)   In December 2011, we sold our Petal and Hattiesburg, Mississippi underground natural gas storage facilities (i.e., the sale of Crystal) and their related contract-based intangible assets. See Note 8 for additional information regarding the sale of Crystal.

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 Year Ended December 31,
	2011		2010		2009
NGL Pipelines & Services	$	41.1	$	40.1	$	36.9
Onshore Natural Gas Pipelines & Services		77.1		72.7		57.2
Onshore Crude Oil Pipelines & Services		0.4		0.4		0.4
Offshore Pipelines & Services		11.2		12.8		14.7
Petrochemical & Refined Products Services		17.2		11.6		10.7
Total all segments	$	147.0	$	137.6	$	119.9

Forecasted Amortization Expense

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

2012		2013		2014		2015		2016
$	123.3	$	109.3	$	106.7	$	106.2	$	107.6

Significant Acquired Intangible Assets

The following information summarizes the significant components of this category of intangible assets:

§   State Line and Fairplay customer relationships – We acquired these customer relationships in connection with our acquisition of the State Line and Fairplay natural gas gathering systems in May 2010.  The acquired customer relationships as of December 31, 2011 are presented in the following table:

	Gross Value		Accum. Amort.			Carrying Value
State Line natural gas gathering customer relationships (1)	$	675.0	$	(36.1	)	$	638.9
Fairplay natural gas gathering customer relationships (1)		116.6		(11.6	)		105.0
Fairplay natural gas processing customer relationships (2)		103.4		(10.3	)		93.1
Total acquired customer relationships	$	895.0	$	(58.0	)	$	837.0
(1)   These natural gas gathering customer relationship intangible assets are a component of our Onshore Natural Gas Pipelines & Services business segment. (2)   The Fairplay natural gas processing customer relationship intangible assets are a component of our NGL Pipelines & Services business segment.

Changes in Carrying Amount of Goodwill

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

	NGL Pipelines & Services		Onshore Natural Gas Pipelines & Services			Onshore Crude Oil Pipelines & Services		Offshore Pipelines & Services		Petrochemical & Refined Products Services			Consolidated Totals
Balance at December 31, 2008	$	341.2	$	284.9		$	303.0	$	82.1	$	1,008.4		$	2,019.6
Impairment charges (1)		--		--			--		--		(1.3	)		(1.3	)
Balance at December 31, 2009 (2)		341.2		284.9			303.0		82.1		1,007.1			2,018.3
Goodwill related to acquisitions		--		26.2			8.2		--		55.0			89.4
Balance at December 31, 2010 (2)		341.2		311.1			311.2		82.1		1,062.1			2,107.7
Goodwill adjustment (3)		--		--			--		--		(0.6	)		(0.6	)
Goodwill related to the sale of assets (4)		--		(14.8	)		--		--		--			(14.8	)
Balance at December 31, 2011 (2)	$	341.2	$	296.3		$	311.2	$	82.1	$	1,061.5		$	2,092.3
(1)   See Note 6 for information regarding impairment charges recorded during 2009. (2)   The total carrying amount of goodwill at December 31, 2011, 2010 and 2009 is net of $1.3 million of accumulated impairment charges. (3)   The goodwill we recorded in connection with a marine business acquisition completed in November 2010 was subsequently reduced in May 2011 due to a purchase price adjustment. (4)   In December 2011, we sold our ownership interests in Crystal, including related goodwill. See Note 8 for additional information regarding the sale of Crystal.