The following table presents our investments in unconsolidated affiliates by business segment at the dates indicated. Unless noted otherwise, we account for these investments using the equity method.

	Ownership Interest at June 30, 2013		June 30, 2013		December 31, 2012
NGL Pipelines & Services:
Venice Energy Service Company, L.L.C.		13.1%	$	30.6	$	29.6
K/D/S Promix, L.L.C.		50%		45.2		46.9
Baton Rouge Fractionators LLC		32.2%		19.4		20.2
Skelly-Belvieu Pipeline Company, L.L.C.		50%		40.3		38.2
Texas Express Pipeline LLC		35%		282.7		144.4
Texas Express Gathering LLC		45%		29.2		20.9
Front Range Pipeline LLC		33.3%		68.1		24.4
Onshore Natural Gas Pipelines & Services:
White River Hub, LLC		50%		24.4		24.9
Onshore Crude Oil Pipelines & Services:
Seaway Crude Pipeline Company LLC		50%		558.1		341.4
Eagle Ford Pipeline LLC		50%		225.0		152.4
Offshore Pipelines & Services:
Poseidon Oil Pipeline Company, L.L.C. ("Poseidon")		36%		45.4		47.3
Cameron Highway Oil Pipeline Company		50%		211.1		220.0
Deepwater Gateway, L.L.C.		50%		87.2		90.0
Neptune Pipeline Company, L.L.C.		25.7%		44.6		46.8
Southeast Keathley Canyon Pipeline Company L.L.C.		50%		155.0		74.9
Petrochemical & Refined Products Services:
Baton Rouge Propylene Concentrator, LLC		30%		8.0		8.5
Centennial Pipeline LLC ("Centennial")		50%		61.5		60.8
Other (1)		Various		3.0		3.0
Total			$	1,938.8	$	1,394.6

(1) Other unconsolidated affiliates include a 50% interest in a propylene pipeline extending from Mont Belvieu, Texas to La Porte, Texas and a 25% interest in a company that provides logistics communications solutions between petroleum pipelines and their customers.

The following table presents our equity in income (loss) of unconsolidated affiliates by business segment for the periods indicated:

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2013			2012			2013			2012
NGL Pipelines & Services	$	3.8		$	3.8		$	7.7		$	9.0
Onshore Natural Gas Pipelines & Services		0.9			1.2			1.9			2.6
Onshore Crude Oil Pipelines & Services		30.1			3.6			66.7			4.1
Offshore Pipelines & Services		8.7			4.1			15.1			11.0
Petrochemical & Refined Products Services		(5.9	)		(1.4	)		(9.3	)		(7.9	)
Other Investments		--			--			--			2.4
Total	$	37.6		$	11.3		$	82.1		$	21.2

The following table presents our unamortized excess cost amounts by business segment at the dates indicated:

	June 30, 2013		December 31, 2012
NGL Pipelines & Services	$	28.3	$	28.9
Onshore Crude Oil Pipelines & Services		18.1		18.5
Offshore Pipelines & Services		12.9		13.6
Petrochemical & Refined Products Services		2.7		2.7
Total	$	62.0	$	63.7

The following table presents our amortization of excess cost amounts by business segment for the periods indicated:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2013		2012		2013		2012
NGL Pipelines & Services	$	0.3	$	0.3	$	0.6	$	0.5
Onshore Crude Oil Pipelines & Services		0.2		0.1		0.4		0.3
Offshore Pipelines & Services		0.4		0.3		0.7		0.6
Petrochemical & Refined Products Services		--		--		--		0.1
Other Investments		--		--		--		0.3
Total	$	0.9	$	0.7	$	1.7	$	1.8

The following tables present unaudited income statement information (on a 100% basis for the periods indicated) of our unconsolidated affiliates, aggregated by the business segments to which they relate:

	Summarized Income Statement Information for the Three Months Ended
	June 30, 2013								June 30, 2012
	Revenues		Operating Income (Loss)			Net Income (Loss)			Revenues		Operating Income (Loss)			Net Income (Loss)
NGL Pipelines & Services	$	71.5	$	12.7		$	12.6		$	71.5	$	15.3		$	15.2
Onshore Natural Gas Pipelines & Services		2.9		1.8			1.8			2.9		1.9			1.9
Onshore Crude Oil Pipelines & Services		88.4		63.4			59.1			21.5		7.4			7.3
Offshore Pipelines & Services		46.9		24.2			23.9			39.1		12.8			12.5
Petrochemical & Refined Products Services		5.7		(9.2	)		(11.0	)		5.9		(0.3	)		(2.4	)

	Summarized Income Statement Information for the Six Months Ended
	June 30, 2013								June 30, 2012
	Revenues		Operating Income (Loss)			Net Income (Loss)			Revenues		Operating Income (Loss)			Net Income (Loss)
NGL Pipelines & Services	$	154.9	$	28.0		$	27.8		$	182.4	$	42.3		$	42.2
Onshore Natural Gas Pipelines & Services		5.8		3.7			3.7			5.7		3.7			3.7
Onshore Crude Oil Pipelines & Services		166.9		135.1			127.0			33.8		8.2			8.1
Offshore Pipelines & Services		89.2		42.2			41.2			80.2		31.9			30.9
Petrochemical & Refined Products Services		11.7		(13.1	)		(16.8	)		11.3		(9.7	)		(13.8	)