Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Affiliates	$ 101,428	$ 89,025
Third parties	27,456	16,609
Total revenues	128,884	105,634
Operating costs and expenses:
Operations (exclusive of depreciation and amortization)	36,202	32,489
Depreciation and amortization	25,142	18,777
General and administrative	3,122	2,634
Total operating costs and expenses	64,466	53,900
Operating income	64,418	51,734
Other income (expense):
Equity in earnings of equity method investments	1,279	1,840
Interest expense	(17,581)	(13,539)
Interest income	515	102
Loss on early extinguishment of debt	0	(12,225)
Gain on sale of assets and other	86	73
Total other income (expense)	(15,701)	(23,749)
Income before income taxes	48,717	27,985
State income tax benefit (expense)	(82)	(106)
Net Income	48,635	27,879
Allocation of net income attributable to noncontrolling interests	(2,467)	(2,316)
Net income attributable to the partners	46,168	25,563
General partner interest in net income attributable to the Partnership, including incentive distributions	0	(17,138)
Limited partners’ interest in net income	$ 46,168	$ 8,425
Limited partners’ per unit interest in earnings—basic and diluted:	$ 0.44	$ 0.13
Weighted average limited partners’ units outstanding	103,836	63,113