Number of Primary Areas in Which Entity Operates

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- Definition

Area spaced or assigned to productive wells in which a working interest is owned.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (a)

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- Definition

Fractional interest owned based on working interests or other economic arrangements of area spaced or assigned to productive wells.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (a)

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Total distributions to each class of partners (i.e., general, limited and preferred partners).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Monetary value of the issuance of new units of limited partnership interest in a public offering, net of offering costs. This is a parenthetical disclosure.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 5
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Balance Type:	credit
Period Type:	duration

- Definition

The number of units sold in a public offering of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

+ Details

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- Definition

The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Organization and Nature of Operations (Details) $ / shares in Units, shares in Thousands, a in Thousands, $ in Thousands		1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 25, 2017 $ / shares shares	Dec. 31, 2018 a	Dec. 31, 2017 USD ($)	Dec. 31, 2018 USD ($) a area	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Limited Partners' Capital Account [Line Items]
Net proceeds from initial public offering \| $			$ 134,185
Proceeds from the Offering distributed to Oasis Petroleum \| $			$ 132,083	$ 44,918
Number of primary areas with developed infrastructure \| area				2
Proceeds from initial public offering, net of offering costs \| $				$ 0	$ 134,200	$ 0
Payments of Distributions to Affiliates \| $				$ 0	$ 132,100	$ 0
Common Units
Limited Partners' Capital Account [Line Items]
Common units sold in public offering (shares) \| shares	7,500
Price of common units sold (in usd per share) \| $ / shares	$ 17
Common Units \| Over-Allotment Option
Limited Partners' Capital Account [Line Items]
Common units sold in public offering (shares) \| shares	1,125
Wild Basin \| Oil, Gas and Water Services [Member]
Limited Partners' Capital Account [Line Items]
Gross dedicated acreage received from Oasis (acres)		65		65
Wild Basin \| Produced and flowback water revenues
Limited Partners' Capital Account [Line Items]
Gross dedicated acreage received from Oasis (acres)		581		581
Wild Basin \| Freshwater revenues
Limited Partners' Capital Account [Line Items]
Gross dedicated acreage received from Oasis (acres)		364		364
Bighorn DevCo
Limited Partners' Capital Account [Line Items]
Ownership interest (percent)	100.00%
Oasis Midstream Partners, LP \| Beartooth DevCo
Limited Partners' Capital Account [Line Items]
Ownership interest (percent)		70.00%
Oasis Midstream Partners, LP \| Bobcat DevCo
Limited Partners' Capital Account [Line Items]
Ownership interest (percent)		25.00%
Oasis Petroleum \| Wild Basin \| Oil, Gas and Water Services [Member]
Limited Partners' Capital Account [Line Items]
Dedicated acreage still within Oasis' gross operated acreage position (acres)		29		29
Oasis Petroleum \| Wild Basin \| Produced Water
Limited Partners' Capital Account [Line Items]
Dedicated acreage still within Oasis' gross operated acreage position (acres)		299		299
Oasis Petroleum \| Wild Basin \| Fresh Water
Limited Partners' Capital Account [Line Items]
Dedicated acreage still within Oasis' gross operated acreage position (acres)		203		203