3.20.2 html 174 254 1 true 48 0 false 5 false false R1.htm 0001001 - Document - Cover Page Sheet http://www.oasispetroleum.com/role/CoverPage Cover Page Cover 1 false false R2.htm 1001002 - Statement - Condensed Consolidated Balance Sheets (Unaudited) Sheet http://www.oasispetroleum.com/role/CondensedConsolidatedBalanceSheetsUnaudited Condensed Consolidated Balance Sheets (Unaudited) Statements 2 false false R3.htm 1002003 - Statement - Condensed Consolidated Balance Sheets (Unaudited) - Parenthetical Sheet http://www.oasispetroleum.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical Condensed Consolidated Balance Sheets (Unaudited) - Parenthetical Statements 3 false false R4.htm 1003004 - Statement - Condensed Consolidated Statements of Operations (Unaudited) Sheet http://www.oasispetroleum.com/role/CondensedConsolidatedStatementsofOperationsUnaudited Condensed Consolidated Statements of Operations (Unaudited) Statements 4 false false R5.htm 1004005 - Statement - Condensed Consolidated Statements of Changes in Equity (Unaudited) Sheet http://www.oasispetroleum.com/role/CondensedConsolidatedStatementsofChangesinEquityUnaudited Condensed Consolidated Statements of Changes in Equity (Unaudited) Statements 5 false false R6.htm 1005006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited) Sheet http://www.oasispetroleum.com/role/CondensedConsolidatedStatementsofCashFlowsUnaudited Condensed Consolidated Statements of Cash Flows (Unaudited) Statements 6 false false R7.htm 2101101 - Disclosure - Organization and Nature of Operations Sheet http://www.oasispetroleum.com/role/OrganizationandNatureofOperations Organization and Nature of Operations Notes 7 false false R8.htm 2104102 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.oasispetroleum.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 8 false false R9.htm 2107103 - Disclosure - Revenue Recognition Sheet http://www.oasispetroleum.com/role/RevenueRecognition Revenue Recognition Notes 9 false false R10.htm 2112104 - Disclosure - Transactions with Affiliates Sheet http://www.oasispetroleum.com/role/TransactionswithAffiliates Transactions with Affiliates Notes 10 false false R11.htm 2114105 - Disclosure - Accrued Liabilities Sheet http://www.oasispetroleum.com/role/AccruedLiabilities Accrued Liabilities Notes 11 false false R12.htm 2117106 - Disclosure - Property, Plant and Equipment Sheet http://www.oasispetroleum.com/role/PropertyPlantandEquipment Property, Plant and Equipment Notes 12 false false R13.htm 2121107 - Disclosure - Long-Term Debt Sheet http://www.oasispetroleum.com/role/LongTermDebt Long-Term Debt Notes 13 false false R14.htm 2123108 - Disclosure - Inventory Sheet http://www.oasispetroleum.com/role/Inventory Inventory Notes 14 false false R15.htm 2125109 - Disclosure - Commitments and Contingencies Sheet http://www.oasispetroleum.com/role/CommitmentsandContingencies Commitments and Contingencies Notes 15 false false R16.htm 2127110 - Disclosure - Equity-Based Compensation Sheet http://www.oasispetroleum.com/role/EquityBasedCompensation Equity-Based Compensation Notes 16 false false R17.htm 2129111 - Disclosure - Partnership Equity and Distributions Sheet http://www.oasispetroleum.com/role/PartnershipEquityandDistributions Partnership Equity and Distributions Notes 17 false false R18.htm 2132112 - Disclosure - Earnings (Loss) Per Limited Partner Unit Sheet http://www.oasispetroleum.com/role/EarningsLossPerLimitedPartnerUnit Earnings (Loss) Per Limited Partner Unit Notes 18 false false R19.htm 2205201 - Disclosure - Summary of Significant Accounting Policies (Policies) Sheet http://www.oasispetroleum.com/role/SummaryofSignificantAccountingPoliciesPolicies Summary of Significant Accounting Policies (Policies) Policies http://www.oasispetroleum.com/role/SummaryofSignificantAccountingPolicies 19 false false R20.htm 2302301 - Disclosure - Organization and Nature of Operations (Tables) Sheet http://www.oasispetroleum.com/role/OrganizationandNatureofOperationsTables Organization and Nature of Operations (Tables) Tables http://www.oasispetroleum.com/role/OrganizationandNatureofOperations 20 false false R21.htm 2308302 - Disclosure - Revenue Recognition (Tables) Sheet http://www.oasispetroleum.com/role/RevenueRecognitionTables Revenue Recognition (Tables) Tables http://www.oasispetroleum.com/role/RevenueRecognition 21 false false R22.htm 2315303 - Disclosure - Accrued Liabilities (Tables) Sheet http://www.oasispetroleum.com/role/AccruedLiabilitiesTables Accrued Liabilities (Tables) Tables http://www.oasispetroleum.com/role/AccruedLiabilities 22 false false R23.htm 2318304 - Disclosure - Property, Plant and Equipment (Tables) Sheet http://www.oasispetroleum.com/role/PropertyPlantandEquipmentTables Property, Plant and Equipment (Tables) Tables http://www.oasispetroleum.com/role/PropertyPlantandEquipment 23 false false R24.htm 2330305 - Disclosure - Partnership Equity and Distributions (Tables) Sheet http://www.oasispetroleum.com/role/PartnershipEquityandDistributionsTables Partnership Equity and Distributions (Tables) Tables http://www.oasispetroleum.com/role/PartnershipEquityandDistributions 24 false false R25.htm 2333306 - Disclosure - Earnings (Loss) Per Limited Partner Unit (Tables) Sheet http://www.oasispetroleum.com/role/EarningsLossPerLimitedPartnerUnitTables Earnings (Loss) Per Limited Partner Unit (Tables) Tables http://www.oasispetroleum.com/role/EarningsLossPerLimitedPartnerUnit 25 false false R26.htm 2403401 - Disclosure - Organization and Nature of Operations (Details) Sheet http://www.oasispetroleum.com/role/OrganizationandNatureofOperationsDetails Organization and Nature of Operations (Details) Details http://www.oasispetroleum.com/role/OrganizationandNatureofOperationsTables 26 false false R27.htm 2406402 - Disclosure - Summary of Significant Accounting Policies - Basis of Presentation (Details) Sheet http://www.oasispetroleum.com/role/SummaryofSignificantAccountingPoliciesBasisofPresentationDetails Summary of Significant Accounting Policies - Basis of Presentation (Details) Details 27 false false R28.htm 2409403 - Disclosure - Revenue Recognition - Disaggregation of Revenue (Details) Sheet http://www.oasispetroleum.com/role/RevenueRecognitionDisaggregationofRevenueDetails Revenue Recognition - Disaggregation of Revenue (Details) Details 28 false false R29.htm 2410404 - Disclosure - Revenue Recognition - Summary of Contract Assets and Contract Liabilities Activity (Details) Sheet http://www.oasispetroleum.com/role/RevenueRecognitionSummaryofContractAssetsandContractLiabilitiesActivityDetails Revenue Recognition - Summary of Contract Assets and Contract Liabilities Activity (Details) Details 29 false false R30.htm 2411405 - Disclosure - Revenue Recognition - Estimated Timing of Remaining Performance Obligation (Details) Sheet http://www.oasispetroleum.com/role/RevenueRecognitionEstimatedTimingofRemainingPerformanceObligationDetails Revenue Recognition - Estimated Timing of Remaining Performance Obligation (Details) Details 30 false false R31.htm 2413406 - Disclosure - Transactions with Affiliates (Details) Sheet http://www.oasispetroleum.com/role/TransactionswithAffiliatesDetails Transactions with Affiliates (Details) Details http://www.oasispetroleum.com/role/TransactionswithAffiliates 31 false false R32.htm 2416407 - Disclosure - Accrued Liabilities (Details) Sheet http://www.oasispetroleum.com/role/AccruedLiabilitiesDetails Accrued Liabilities (Details) Details http://www.oasispetroleum.com/role/AccruedLiabilitiesTables 32 false false R33.htm 2419408 - Disclosure - Property, Plant and Equipment (Details) Sheet http://www.oasispetroleum.com/role/PropertyPlantandEquipmentDetails Property, Plant and Equipment (Details) Details http://www.oasispetroleum.com/role/PropertyPlantandEquipmentTables 33 false false R34.htm 2420409 - Disclosure - Property, Plant and Equipment - Narrative (Details) Sheet http://www.oasispetroleum.com/role/PropertyPlantandEquipmentNarrativeDetails Property, Plant and Equipment - Narrative (Details) Details 34 false false R35.htm 2422410 - Disclosure - Long-Term Debt - Narrative (Details) Sheet http://www.oasispetroleum.com/role/LongTermDebtNarrativeDetails Long-Term Debt - Narrative (Details) Details 35 false false R36.htm 2424411 - Disclosure - Inventory (Details) Sheet http://www.oasispetroleum.com/role/InventoryDetails Inventory (Details) Details http://www.oasispetroleum.com/role/Inventory 36 false false R37.htm 2426412 - Disclosure - Commitments and Contingencies (Details) Sheet http://www.oasispetroleum.com/role/CommitmentsandContingenciesDetails Commitments and Contingencies (Details) Details http://www.oasispetroleum.com/role/CommitmentsandContingencies 37 false false R38.htm 2428413 - Disclosure - Equity-Based Compensation (Details) Sheet http://www.oasispetroleum.com/role/EquityBasedCompensationDetails Equity-Based Compensation (Details) Details http://www.oasispetroleum.com/role/EquityBasedCompensation 38 false false R39.htm 2431414 - Disclosure - Partnership Equity and Distributions (Details) Sheet http://www.oasispetroleum.com/role/PartnershipEquityandDistributionsDetails Partnership Equity and Distributions (Details) Details http://www.oasispetroleum.com/role/PartnershipEquityandDistributionsTables 39 false false R40.htm 2434415 - Disclosure - Earnings (Loss) Per Limited Partner Unit (Details) Sheet http://www.oasispetroleum.com/role/EarningsLossPerLimitedPartnerUnitDetails Earnings (Loss) Per Limited Partner Unit (Details) Details http://www.oasispetroleum.com/role/EarningsLossPerLimitedPartnerUnitTables 40 false false All Reports Book All Reports omp-20200630.htm ex311-ompq220202q20mas.htm ex312-ompq220202q20mas.htm ex321-ompq220202q20mas.htm ex322-ompq220202q20mas.htm omp-20200630.xsd omp-20200630_cal.xml omp-20200630_def.xml omp-20200630_lab.xml omp-20200630_pre.xml http://fasb.org/srt/2020-01-31 http://xbrl.sec.gov/dei/2019-01-31 http://fasb.org/us-gaap/2020-01-31 true true