Investments In Non-Consolidated Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2013

Schedule of Equity Method Investments [Table Text Block]

Our equity method investments consist of the following (in thousands):

	June 30, 2013		December 31, 2012
White Cliffs	$	193,709	$	138,970
NGL Energy	176,816		174,398
Glass Mountain	95,714		74,434
Total equity method investments	$	466,239	$	387,802

Earnings from Equity Method Investments [Table Text Block]

Our earnings from equity method investments consist of the following (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013			2012
White Cliffs	$	10,661	$	8,461	$	21,100		$	15,032
NGL Energy	4,200		3,828		11,116			4,755
Glass Mountain	—		—		(10		)	—
Total earnings from equity method investments	$	14,861	$	12,289	$	32,206		$	19,787

Cash distributions received from equity method investments [Table Text Block]

Cash distributions received from equity methods investments consist of the following (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
White Cliffs	$	12,889	$	10,827	$	26,681	$	19,767
NGL Energy	4,426		1,812		8,698		2,972
Glass Mountain	—		—		—		—
Total cash distributions received from equity method investments	$	17,315	$	12,639	$	35,379	$	22,739

White Cliffs Pipeline, L.L.C. [Member]

Schedule of Income Statement Information on Equity Method Investments

Certain summarized income statement information of White Cliffs for the three months and six months ended June 30, 2013 and 2012 is shown below (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Revenue	$	30,112	$	25,732	$	60,785	$	48,388
Operating, general and administrative expenses	$	4,113	$	3,640	$	9,292	$	7,525
Depreciation and amortization expense	$	4,715	$	4,986	$	9,430	$	9,969
Net income	$	21,284	$	17,106	$	42,063	$	30,894

NGL Energy Partners LP [Member]

Schedule of Income Statement Information on Equity Method Investments

Certain unaudited summarized income statement information of NGL Energy for the three months and six months ended March 31, 2013 and 2012 is shown below (in thousands):

	Three Months Ended March 31,				Six Months Ended March 31,
	2013		2012		2013		2012
Revenue	$	1,617,613	$	438,938	$	2,955,821	$	909,587
Cost of products sold	$	1,481,890	$	389,806	$	2,686,435	$	829,596
Operating, general and administrative expenses	$	74,632	$	25,901	$	139,325	$	42,717
Depreciation and amortization expense	$	27,518	$	6,631	$	46,265	$	12,033
Net income	$	22,341	$	13,942	$	62,818	$	20,032