Consolidated Statement of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Midstream Services — Affiliate	$ 66,924	$ 54,117	$ 131,187	$ 104,431
Total Revenues	121,971	57,783	219,704	108,097
Costs and Expenses
Cost of Crude Oil Sales	40,012	0	61,451	0
Direct Operating	18,393	14,293	35,541	25,694
Depreciation and Amortization	16,371	2,472	27,700	4,921
General and Administrative	4,980	3,452	15,422	6,194
Total Operating Expenses	79,756	20,217	140,114	36,809
Operating Income	42,215	37,566	79,590	71,288
Other (Income) Expense
Interest Expense, Net of Amount Capitalized	1,681	100	2,714	367
Investment Income	(4,091)	(1,641)	(6,959)	(2,706)
Total Other Income	(2,410)	(1,541)	(4,245)	(2,339)
Income Before Income Taxes	44,625	39,107	83,835	73,627
State Income Tax Provision	183	0	257	0
Net Income	44,442	39,107	83,578	73,627
Less: Net Income Attributable to Noncontrolling Interests	7,858	7,515	7,633	17,693
Net Income Attributable to Noble Midstream Partners LP	36,584	31,592	75,945	55,934
Less: Net Income Attributable to Incentive Distribution Rights	1,134	92	1,953	92
Net Income Attributable to Limited Partners	35,450	31,500	73,992	55,842
Common Units
Other (Income) Expense
Net Income Attributable to Limited Partners	$ 21,210	$ 15,862	$ 44,268	$ 28,033
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted (in dollars per unit)	$ 0.90	$ 0.98	$ 1.87	$ 1.75
Weighted Average Limited Partner Units Outstanding — Basic
Basic (in units)	23,686	16,127	23,684	16,015
Weighted Average Limited Partner Units Outstanding —Diluted
Diluted (in units)	23,700	16,137	23,699	16,024
Subordinated Units
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted
Net Income Attributable to Limited Partners Per Limited Partner Unit — Basic and Diluted (in dollars per unit)	$ 0.90	$ 0.98	$ 1.87	$ 1.75
Subordinated Units | Noble
Other (Income) Expense
Net Income Attributable to Limited Partners	$ 14,240	$ 15,638	$ 29,724	$ 27,809
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	$ 13,469	$ 3,666	$ 24,829	$ 3,666
Crude Oil Sales — Third Party
Revenues
Services and Sales Revenues - Third Party	$ 41,578	$ 0	$ 63,688	$ 0