Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Total revenues	$ 106,627	$ 93,852	[1]
Operating expenses
Costs of product sales	8,432	8,065	[1]
Operating and maintenance	16,840	19,690	[1]
Impairment	101,767	0	[2]
Depreciation and amortization	10,197	8,991	[2]
General and administrative	8,451	8,723	[1]
Total operating expenses	145,687	45,469	[1]
Operating income (loss)	(39,060)	48,383	[1]
Interest expense, net of capitalized interest	(30,257)	(3,969)	[1]
Other income (expense)	(42)	0	[1]
Total other expenses, net	(30,299)	(3,969)	[1]
Net income (loss)	(69,359)	44,414	[1]
Less: Net income attributable to Delaware Predecessor	0	1,075	[1]
Less: Net income attributable to non-controlling interests	2,040	21,796	[1]
Net income attributable to Oasis Midstream Partners LP	$ (71,399)	$ 21,543	[1]
Earnings per limited partner unit
Common units - Basic (in usd per share)	$ (2.14)	$ 0.63	[1]
Common units - Diluted (in usd per share)	$ (2.14)	$ 0.63	[1]
Common Units
Weighted average number of limited partner units outstanding
Weighted average number of limited partner units outstanding (Basic) (shares)	20,041	20,016	[1]
Weighted average number of limited partner units outstanding (Diluted) (shares)	20,041	20,033	[1]
General Partner
Operating expenses
Net income (loss)	$ 1,008	$ 238
Net income attributable to Oasis Midstream Partners LP	1,008	238	[1]
Limited Partner
Operating expenses
Net income attributable to Oasis Midstream Partners LP	(72,407)	21,305	[1]
Limited Partner | Common Units
Operating expenses
Net income (loss)	$ (42,947)	$ 12,630
Weighted average number of limited partner units outstanding
Weighted average number of limited partner units outstanding (Basic) (shares)	20,041	20,016
Weighted average number of limited partner units outstanding (Diluted) (shares)	20,041	20,033
Midstream service revenues
Revenues
Total revenues	$ 85,839	$ 78,189
Midstream service revenues | Oasis Petroleum
Revenues
Total revenues	81,993	77,063	[1]
Midstream service revenues | Third Parties
Revenues
Total revenues	3,846	1,127	[1]
Product revenues
Revenues
Total revenues	20,788	15,663
Product revenues | Oasis Petroleum
Revenues
Total revenues	20,788	15,652	[1]
Product revenues | Third Parties
Revenues
Total revenues	$ 0	$ 10	[1]

[1] Retrospectively adjusted for the transfer of net assets between entities under common control. See Note 2 to our unaudited condensed consolidated financial statements.

[2] Retrospectively adjusted for the transfer of net assets between entities under common control. See Note 2 to our unaudited condensed consolidated financial statements.