Consolidated Statement of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues
Midstream Services — Affiliate	$ 73,136	$ 56,755	$ 204,323	$ 161,186
Total Revenues	139,163	63,111	358,867	171,208
Costs and Expenses
Cost of Crude Oil Sales	44,379	0	105,830	0
Direct Operating	23,955	13,712	59,496	39,406
Depreciation and Amortization	18,376	3,562	46,076	8,483
General and Administrative	4,204	3,087	19,626	9,281
Total Operating Expenses	90,914	20,361	231,028	57,170
Operating Income	48,249	42,750	127,839	114,038
Other (Income) Expense
Interest Expense, Net of Amount Capitalized	3,506	594	6,220	961
Investment Income	(3,866)	(1,633)	(10,825)	(4,339)
Total Other Income	(360)	(1,039)	(4,605)	(3,378)
Income Before Income Taxes	48,609	43,789	132,444	117,416
State Income Tax Provision	(94)	33	163	33
Net Income	48,703	43,756	132,281	117,383
Less: Net Income Attributable to Noncontrolling Interests	4,086	2,086	11,719	19,779
Net Income Attributable to Noble Midstream Partners LP	44,617	41,670	120,562	97,604
Less: Net Income Attributable to Incentive Distribution Rights	1,462	223	3,415	315
Net Income Attributable to Limited Partners	$ 43,155	$ 41,447	$ 117,147	$ 97,289
Net Income Attributable to Limited Partners Per Limited Partner Common and Subordinated Unit
Net Income Attributable to Limited Partners Per Limited Partner Common and Subordinated Unit - Basic (in usd per unit)	$ 1.09	$ 1.15	$ 2.96	$ 2.93
Net Income Attributable to Limited Partners Per Limited Partner Common and Subordinated Unit - Diluted (in usd per unit)	$ 1.09	$ 1.15	$ 2.96	$ 2.92
Common Units
Other (Income) Expense
Net Income Attributable to Limited Partners	$ 25,825	$ 23,084	$ 70,093	$ 51,117
Weighted Average Limited Partner Units Outstanding — Basic
Basic (in units)	23,688	19,990	23,686	17,354
Weighted Average Limited Partner Units Outstanding —Diluted
Diluted (in units)	23,704	20,005	23,701	17,365
Subordinated Units | Noble
Other (Income) Expense
Net Income Attributable to Limited Partners	$ 17,330	$ 18,363	$ 47,054	$ 46,172
Weighted Average Limited Partner Units Outstanding — Basic
Basic (in units)	15,903	15,903	15,903	15,903
Weighted Average Limited Partner Units Outstanding —Diluted
Diluted (in units)	15,903	15,903	15,903	15,903
Midstream Services — Third Party
Revenues
Services and Sales Revenues - Third Party	$ 19,934	$ 6,356	$ 44,763	$ 10,022
Crude Oil Sales — Third Party
Revenues
Services and Sales Revenues - Third Party	$ 46,093	$ 0	$ 109,781	$ 0