Equity Method Investments (Tables)

3 Months Ended

Mar. 31, 2016

Schedule of Equity Method Investments [Line Items]

Schedule of equity method investments [Table Text Block]

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

	March 31, 2016		December 31, 2015
White Cliffs Pipeline, L.L.C.	$	293,811	$	297,109
NGL Energy Partners LP	70,342		112,787
Glass Mountain Pipeline, LLC	139,761		141,182
Total equity method investments	$	503,914	$	551,078

Earnings from equity method investments [Table Text Block]

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

	Three Months Ended March 31,
	2016		2015
White Cliffs Pipeline, L.L.C.	$	19,780	$	19,090
NGL Energy Partners LP*	2,232		(305		)
Glass Mountain Pipeline, LLC	1,059		1,774
Total earnings from equity method investments	$	23,071	$	20,559

* Excluding loss on issuance of common units of $41.0 thousand for the three months ended March 31, 2016

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

Cash distributions received from equity method investments consisted of the following (in thousands):

	Three Months Ended March 31,
	2016		2015
White Cliffs Pipeline, L.L.C.	$	24,098	$	24,154
NGL Energy Partners LP	4,873		5,015
Glass Mountain Pipeline, LLC	2,815		1,911
Total cash distributions received from equity method investments	$	31,786	$	31,080

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

Schedule of Equity Method Investments [Line Items]

Schedule of equity method investments [Table Text Block]

Certain unaudited summarized income statement information of White Cliffs Pipeline, L.L.C. ("White Cliffs") for the three months ended March 31, 2016 and 2015 is shown below (in thousands):

	Three Months Ended March 31,
	2016		2015
Revenue	$	58,056	$	54,614
Operating, general and administrative expenses	$	9,852	$	8,353
Depreciation and amortization expense	$	8,963	$	8,538
Net income	$	39,247	$	37,723

NGL Energy Partners LP [Member]

Schedule of Equity Method Investments [Line Items]

Schedule of equity method investments [Table Text Block]

Certain unaudited summarized income statement information of NGL Energy for the three months ended December 31, 2015 and 2014 is shown below (in thousands):

	Three Months Ended December 31,
	2015		2014
Revenue	$	2,685,006	$	4,552,146
Cost of sales	$	2,433,500	$	4,311,668
Operating, general and administrative expenses	$	131,146	$	172,064
Depreciation and amortization expense	$	59,180	$	50,335
Net income (loss)	$	29,621	$	(5,269	)

Glass Mountain Pipeline LLC [Member]

Schedule of Equity Method Investments [Line Items]

Schedule of equity method investments [Table Text Block]

Certain unaudited summarized income statement information of Glass Mountain for the three months ended March 31, 2016 and 2015 is shown below (in thousands):

	Three Months Ended March 31,
	2016		2015
Revenue	$	8,572	$	11,121
Cost of sales	$	565	$	1,982
Operating, general and administrative expenses	$	1,845	$	1,438
Depreciation and amortization expense	$	3,936	$	4,044
Net income	$	2,225	$	3,655