0001549922 false --12-31 Q3 100000 100000 0.06 100000 P3Y 0.06 P3M P1Y P1Y P1Y P1Y 0001549922 2020-01-01 2020-09-30 xbrli:shares 0001549922 2020-10-30 iso4217:USD 0001549922 2020-09-30 0001549922 2019-12-31 0001549922 smlp:MezzanineCapitalMember 2020-09-30 0001549922 smlp:MezzanineCapitalMember 2019-12-31 0001549922 us-gaap:NaturalGasGatheringTransportationMarketingAndProcessingMember 2020-07-01 2020-09-30 0001549922 us-gaap:NaturalGasGatheringTransportationMarketingAndProcessingMember 2019-07-01 2019-09-30 0001549922 us-gaap:NaturalGasGatheringTransportationMarketingAndProcessingMember 2020-01-01 2020-09-30 0001549922 us-gaap:NaturalGasGatheringTransportationMarketingAndProcessingMember 2019-01-01 2019-09-30 0001549922 us-gaap:OilAndCondensateMember 2020-07-01 2020-09-30 0001549922 us-gaap:OilAndCondensateMember 2019-07-01 2019-09-30 0001549922 us-gaap:OilAndCondensateMember 2020-01-01 2020-09-30 0001549922 us-gaap:OilAndCondensateMember 2019-01-01 2019-09-30 0001549922 us-gaap:ProductAndServiceOtherMember 2020-07-01 2020-09-30 0001549922 us-gaap:ProductAndServiceOtherMember 2019-07-01 2019-09-30 0001549922 us-gaap:ProductAndServiceOtherMember 2020-01-01 2020-09-30 0001549922 us-gaap:ProductAndServiceOtherMember 2019-01-01 2019-09-30 0001549922 2020-07-01 2020-09-30 0001549922 2019-07-01 2019-09-30 0001549922 2019-01-01 2019-09-30 0001549922 smlp:SeriesAPreferredUnitsMember 2020-07-01 2020-09-30 0001549922 smlp:SeriesAPreferredUnitsMember 2019-07-01 2019-09-30 0001549922 smlp:SeriesAPreferredUnitsMember 2020-01-01 2020-09-30 0001549922 smlp:SeriesAPreferredUnitsMember 2019-01-01 2019-09-30 0001549922 smlp:SeriesAPreferredUnitsMember srt:SubsidiariesMember 2020-07-01 2020-09-30 0001549922 smlp:SeriesAPreferredUnitsMember srt:SubsidiariesMember 2020-01-01 2020-09-30 0001549922 smlp:CommonUnitsMember 2020-07-01 2020-09-30 0001549922 smlp:CommonUnitsMember 2019-07-01 2019-09-30 0001549922 smlp:CommonUnitsMember 2020-01-01 2020-09-30 0001549922 smlp:CommonUnitsMember 2019-01-01 2019-09-30 iso4217:USD xbrli:shares 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-12-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-12-31 0001549922 smlp:PartnersCapitalMember 2019-12-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2020-01-01 2020-03-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2020-01-01 2020-03-31 0001549922 smlp:PartnersCapitalMember 2020-01-01 2020-03-31 0001549922 2020-01-01 2020-03-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2020-03-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2020-03-31 0001549922 smlp:PartnersCapitalMember 2020-03-31 0001549922 2020-03-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2020-04-01 2020-06-30 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2020-04-01 2020-06-30 0001549922 smlp:PartnersCapitalMember us-gaap:SeriesAPreferredStockMember 2020-04-01 2020-06-30 0001549922 smlp:PartnersCapitalMember 2020-04-01 2020-06-30 0001549922 2020-04-01 2020-06-30 0001549922 smlp:PartnersCapitalMember us-gaap:SeriesAPreferredStockMember 2020-06-30 0001549922 smlp:PartnersCapitalMember 2020-06-30 0001549922 2020-06-30 0001549922 smlp:PartnersCapitalMember us-gaap:SeriesAPreferredStockMember 2020-07-01 2020-09-30 0001549922 smlp:PartnersCapitalMember 2020-07-01 2020-09-30 0001549922 smlp:PartnersCapitalMember us-gaap:SeriesAPreferredStockMember 2020-09-30 0001549922 smlp:PartnersCapitalMember 2020-09-30 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2018-12-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2018-12-31 0001549922 smlp:PartnersCapitalMember 2018-12-31 0001549922 2018-12-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-01-01 2019-03-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-01-01 2019-03-31 0001549922 smlp:PartnersCapitalMember 2019-01-01 2019-03-31 0001549922 2019-01-01 2019-03-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-03-31 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-03-31 0001549922 smlp:PartnersCapitalMember 2019-03-31 0001549922 2019-03-31 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-04-01 2019-06-30 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-04-01 2019-06-30 0001549922 smlp:PartnersCapitalMember 2019-04-01 2019-06-30 0001549922 2019-04-01 2019-06-30 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-06-30 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-06-30 0001549922 smlp:PartnersCapitalMember 2019-06-30 0001549922 2019-06-30 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-07-01 2019-09-30 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-07-01 2019-09-30 0001549922 smlp:PartnersCapitalMember 2019-07-01 2019-09-30 0001549922 us-gaap:NoncontrollingInterestMember us-gaap:SeriesAPreferredStockMember 2019-09-30 0001549922 us-gaap:NoncontrollingInterestMember smlp:CommonNoncontrollingInterestsMember 2019-09-30 0001549922 smlp:PartnersCapitalMember 2019-09-30 0001549922 2019-09-30 0001549922 smlp:OpenMarketRepurchasesMember 2020-01-01 2020-09-30 0001549922 smlp:OpenMarketRepurchasesMember 2019-01-01 2019-09-30 0001549922 smlp:TenderOfferRepurchaseMember 2020-01-01 2020-09-30 0001549922 smlp:TenderOfferRepurchaseMember 2019-01-01 2019-09-30 0001549922 smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:CommonUnitsMember smlp:EnergyCapitalPartnersMember 2020-09-30 0001549922 smlp:SummitInvestmentsMember 2020-01-01 2020-09-30 0001549922 smlp:SummitInvestmentsMember smlp:CommonUnitsMember 2020-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2020-10-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2021-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2022-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2023-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2024-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2025-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember 2020-07-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:AllOtherSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:AllOtherSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:AllOtherSegmentsMember 2020-07-01 2020-09-30 0001549922 us-gaap:AllOtherSegmentsMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2020-07-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember 2020-07-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember 2020-07-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:OperatingSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:OperatingSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:OperatingSegmentsMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember us-gaap:AllOtherSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember us-gaap:AllOtherSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember us-gaap:AllOtherSegmentsMember 2019-07-01 2019-09-30 0001549922 us-gaap:AllOtherSegmentsMember 2019-07-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2019-07-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember 2019-07-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember 2019-07-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember 2020-01-01 2020-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:AllOtherSegmentsMember 2020-01-01 2020-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2020-01-01 2020-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember 2020-01-01 2020-09-30 0001549922 smlp:OtherProductsAndServicesMember 2020-01-01 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:UticaShaleSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:WillistonBasinSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:DJBasinSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PermianBasinSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:PiceanceBasinSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:BarnettShaleSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:MarcellusShaleSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:OperatingSegmentsMember 2019-01-01 2019-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 us-gaap:AllOtherSegmentsMember smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:AllOtherSegmentsMember 2019-01-01 2019-09-30 0001549922 smlp:GatheringServicesandRelatedFeesMember 2019-01-01 2019-09-30 0001549922 smlp:NaturalGasNGLAndCondensateSalesMember 2019-01-01 2019-09-30 0001549922 smlp:OtherProductsAndServicesMember 2019-01-01 2019-09-30 0001549922 us-gaap:GasGatheringAndProcessingEquipmentMember 2020-09-30 0001549922 us-gaap:GasGatheringAndProcessingEquipmentMember 2019-12-31 0001549922 us-gaap:ConstructionInProgressMember 2020-09-30 0001549922 us-gaap:ConstructionInProgressMember 2019-12-31 0001549922 smlp:LandandLineFillMember 2020-09-30 0001549922 smlp:LandandLineFillMember 2019-12-31 0001549922 us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember 2020-09-30 0001549922 us-gaap:OtherCapitalizedPropertyPlantAndEquipmentMember 2019-12-31 0001549922 smlp:DJBasinSegmentMember 2020-01-01 2020-03-31 0001549922 smlp:DJBasinSegmentMember 2019-03-01 2019-03-31 0001549922 smlp:BarnettShaleSegmentMember smlp:FixedAssetsMember 2019-01-01 2019-03-31 0001549922 smlp:RightsOfWayMember 2019-01-01 2019-03-31 0001549922 smlp:MountaineerMidstreamMember 2019-01-01 2019-09-30 0001549922 smlp:MountaineerMidstreamMember 2019-07-01 2019-09-30 0001549922 smlp:DoubleECompanyLLCMember 2020-07-01 2020-09-30 0001549922 smlp:DoubleECompanyLLCMember 2020-01-01 2020-09-30 xbrli:pure 0001549922 smlp:OhioGatheringCompanyLLCMember us-gaap:PrincipalOwnerMember 2020-09-30 0001549922 smlp:OhioGatheringCompanyLLCMember us-gaap:PrincipalOwnerMember 2019-12-31 0001549922 smlp:OhioGatheringCompanyLLCMember smlp:SummitMidstreamPartnersLLCMember 2020-09-30 0001549922 smlp:OhioGatheringCompanyLLCMember smlp:SummitMidstreamPartnersLLCMember 2020-09-01 2020-09-30 0001549922 smlp:OhioGatheringCompanyLLCMember smlp:SummitMidstreamPartnersLLCMember 2020-08-31 0001549922 smlp:SeniorNotesDueMayTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDueMayTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorSecuredTermLoanDueMarchTwentyTwentyOneMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorSecuredTermLoanDueMarchTwentyTwentyOneMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorNotesDueAugustTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDueAugustTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorNotesDueAprilTwentyTwentyFiveMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDueAprilTwentyTwentyFiveMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorSecuredTermLoanDueMayTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorSecuredTermLoanDueMayTwentyTwentyTwoMember smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 smlp:SummitMidstreamPartnersHoldingsLLCMember 2020-09-30 0001549922 smlp:SummitMidstreamPartnersHoldingsLLCMember 2019-12-31 0001549922 us-gaap:RevolvingCreditFacilityMember 2020-09-30 0001549922 us-gaap:RevolvingCreditFacilityMember 2020-01-01 2020-09-30 0001549922 us-gaap:RevolvingCreditFacilityMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-01-01 2020-09-30 0001549922 2020-05-27 2020-05-28 0001549922 smlp:ECPNewCoTermLoanCreditAgreementMember 2020-05-28 0001549922 smlp:ECPTermLoanCreditAgreementsMember 2020-05-28 0001549922 smlp:ECPTermLoanCreditAgreementsMember 2020-05-27 2020-05-28 0001549922 smlp:TermLoanBMember us-gaap:LondonInterbankOfferedRateLIBORMember 2020-04-17 0001549922 smlp:TermLoanBMember 2020-04-17 0001549922 smlp:TermLoanBMember 2020-04-16 2020-04-17 0001549922 smlp:TermLoanBMember 2020-07-01 2020-09-30 0001549922 smlp:TermLoanBMember 2020-01-01 2020-09-30 0001549922 smlp:LiabilityManagementTransactionsMember smlp:SeniorNotesDueTwoThousandTwentyTwoAndTwentyFiveMember 2020-07-01 2020-09-30 0001549922 smlp:LiabilityManagementTransactionsMember smlp:SeniorNotesDueTwoThousandTwentyTwoAndTwentyFiveMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDue2022Member smlp:LiabilityManagementTransactionsMember smlp:OpenMarketRepurchasesMember 2020-09-30 0001549922 smlp:SeniorNotesDueAprilTwentyTwentyFiveMember smlp:LiabilityManagementTransactionsMember smlp:OpenMarketRepurchasesMember 2020-09-30 0001549922 smlp:LiabilityManagementTransactionsMember smlp:OpenMarketRepurchasesMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDue2022Member smlp:LiabilityManagementTransactionsMember smlp:TenderOfferRepurchaseMember 2020-09-30 0001549922 smlp:SeniorNotesDueAprilTwentyTwentyFiveMember smlp:LiabilityManagementTransactionsMember smlp:TenderOfferRepurchaseMember 2020-09-30 0001549922 smlp:LiabilityManagementTransactionsMember smlp:TenderOfferRepurchaseMember 2020-01-01 2020-09-30 0001549922 smlp:SMPHTermLoanRestructuringMember smlp:LiabilityManagementTransactionsMember 2020-09-29 2020-09-29 0001549922 smlp:SMPHTermLoanRestructuringMember smlp:LiabilityManagementTransactionsMember 2020-09-29 0001549922 smlp:LiabilityManagementTransactionsMember smlp:OpenMarketRepurchasesAndTenderOfferRepurchaseMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDueTwentyTwentyTwoMember smlp:OpenMarketRepurchasesMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDueTwentyTwentyFiveMember smlp:OpenMarketRepurchasesMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDueTwentyTwentyTwoMember smlp:TenderOfferRepurchaseMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDueTwentyTwentyFiveMember smlp:TenderOfferRepurchaseMember 2020-01-01 2020-09-30 0001549922 smlp:ECPLoanRepaymentMember 2020-01-01 2020-09-30 0001549922 smlp:SeniorNotesDue2022Member us-gaap:CarryingReportedAmountFairValueDisclosureMember smlp:SummitMidstreamHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDue2022Member us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member smlp:SummitMidstreamHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDue2022Member us-gaap:CarryingReportedAmountFairValueDisclosureMember smlp:SummitMidstreamHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorNotesDue2022Member us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member smlp:SummitMidstreamHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorNotesDue2025Member us-gaap:CarryingReportedAmountFairValueDisclosureMember smlp:SummitMidstreamHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDue2025Member us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member smlp:SummitMidstreamHoldingsLLCMember 2020-09-30 0001549922 smlp:SeniorNotesDue2025Member us-gaap:CarryingReportedAmountFairValueDisclosureMember smlp:SummitMidstreamHoldingsLLCMember 2019-12-31 0001549922 smlp:SeniorNotesDue2025Member us-gaap:EstimateOfFairValueFairValueDisclosureMember us-gaap:FairValueInputsLevel2Member smlp:SummitMidstreamHoldingsLLCMember 2019-12-31 0001549922 smlp:LimitedPartnerCommonUnitsMember 2019-12-31 0001549922 smlp:LimitedPartnerCommonUnitsMember 2020-01-01 2020-09-30 0001549922 smlp:LimitedPartnerCommonUnitsMember 2020-09-30 0001549922 smlp:LimitedPartnerCommonUnitsMember 2019-12-31 0001549922 srt:ScenarioPreviouslyReportedMember smlp:LimitedPartnerCommonUnitsMember 2020-09-30 0001549922 smlp:LimitedPartnerCommonUnitsMember 2020-09-30 0001549922 smlp:LimitedPartnerCommonUnitsMember smlp:PreferredUnitExchangeMember 2020-01-01 2020-09-30 0001549922 smlp:TermLoanBMember smlp:LimitedPartnerCommonUnitsMember 2020-09-30 0001549922 smlp:EnergyCapitalPartnersMember smlp:LimitedPartnerCommonUnitsMember 2020-09-30 0001549922 smlp:CommonUnitsMember us-gaap:GeneralPartnerMember 2020-01-01 2020-09-30 0001549922 us-gaap:SeriesAPreferredStockMember 2017-12-31 0001549922 us-gaap:SeriesAPreferredStockMember 2020-07-28 0001549922 smlp:CommonUnitsMember 2020-07-28 2020-07-28 0001549922 us-gaap:SeriesAPreferredStockMember 2020-09-30 0001549922 us-gaap:SeriesAPreferredStockMember 2019-12-31 0001549922 us-gaap:SeriesAPreferredStockMember 2020-01-01 2020-09-30 0001549922 smlp:CommonUnitsMember 2020-04-29 2020-05-28 0001549922 smlp:CommonUnitsMember smlp:ECPHoldingsWarrantMember 2020-04-29 2020-05-28 0001549922 smlp:CommonUnitsMember 2020-05-28 0001549922 smlp:CommonUnitsMember srt:MaximumMember 2020-05-28 0001549922 smlp:CommonUnitsMember 2020-09-30 0001549922 smlp:CommonUnitsMember smlp:EnergyCapitalPartnersMember 2020-04-29 2020-05-28 0001549922 us-gaap:GeneralPartnerMember smlp:SummitMidstreamPartnersLPMember 2019-03-01 2019-03-31 0001549922 smlp:SummitMidstreamPartnersLPMember smlp:CommonUnitsMember 2019-03-01 2019-03-31 0001549922 us-gaap:SeriesAPreferredStockMember us-gaap:PaymentInKindPIKNoteMember 2020-01-01 2020-09-30 0001549922 us-gaap:SeriesAPreferredStockMember us-gaap:PaymentInKindPIKNoteMember 2020-07-01 2020-09-30 0001549922 us-gaap:SeriesAPreferredStockMember us-gaap:PaymentInKindPIKNoteMember 2020-01-01 2020-12-31 0001549922 smlp:LimitedPartnerInterestBeforeSubordinatedUnitsConvertedToCommonUnitsMember 2020-07-01 2020-09-30 0001549922 smlp:LimitedPartnerInterestBeforeSubordinatedUnitsConvertedToCommonUnitsMember 2019-07-01 2019-09-30 0001549922 smlp:LimitedPartnerInterestBeforeSubordinatedUnitsConvertedToCommonUnitsMember 2020-01-01 2020-09-30 0001549922 smlp:LimitedPartnerInterestBeforeSubordinatedUnitsConvertedToCommonUnitsMember 2019-01-01 2019-09-30 0001549922 us-gaap:PhantomShareUnitsPSUsMember 2020-07-01 2020-09-30 0001549922 us-gaap:PhantomShareUnitsPSUsMember 2019-07-01 2019-09-30 0001549922 us-gaap:PhantomShareUnitsPSUsMember 2020-01-01 2020-09-30 0001549922 us-gaap:PhantomShareUnitsPSUsMember 2019-01-01 2019-09-30 0001549922 smlp:SummitMidstreamPartnersHoldingsLLCMember smlp:CommonUnitsMember 2019-09-30 0001549922 smlp:SummitMidstreamPartnersHoldingsLLCMember smlp:TermLoanBMember 2020-09-30 0001549922 us-gaap:AccountingStandardsUpdate201602Member 2020-01-01 2020-09-30 0001549922 us-gaap:AccountingStandardsUpdate201602Member 2019-01-01 2019-09-30 0001549922 us-gaap:PhantomShareUnitsPSUsMember smlp:LongTermIncentivePlanMember 2020-03-01 2020-03-31 0001549922 smlp:LongTermIncentivePlanMember us-gaap:PhantomShareUnitsPSUsMember 2020-06-01 2020-06-30 smlp:Director 0001549922 us-gaap:PhantomShareUnitsPSUsMember smlp:LongTermIncentivePlanMember 2020-01-01 2020-09-30 0001549922 smlp:LongTermIncentivePlanMember 2020-09-30 0001549922 srt:MaximumMember smlp:MeadowlarkMidstreamGatheringSystemMember us-gaap:PrincipalOwnerMember 2020-01-01 2020-09-30 0001549922 smlp:MeadowlarkMidstreamGatheringSystemMember 2019-12-31 0001549922 smlp:MeadowlarkMidstreamGatheringSystemMember 2020-01-01 2020-09-30 0001549922 smlp:MeadowlarkMidstreamGatheringSystemMember 2020-09-30 smlp:Agreement 0001549922 us-gaap:PartnershipMember us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember 2019-02-01 2019-02-28 0001549922 us-gaap:PartnershipMember us-gaap:DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember 2019-03-22 2019-03-22 0001549922 smlp:EmployeeRelatedCostsMember us-gaap:PartnershipMember 2019-01-01 2019-12-31 0001549922 smlp:EmployeeRelatedCostsMember us-gaap:PartnershipMember 2020-07-01 2020-09-30 0001549922 smlp:EmployeeRelatedCostsMember us-gaap:PartnershipMember 2020-01-01 2020-09-30 0001549922 smlp:EmployeeRelatedCostsMember us-gaap:PartnershipMember 2020-09-30 0001549922 smlp:UticaShaleSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:UticaShaleSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:OhioGatheringSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:OhioGatheringSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:WillistonBasinSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:WillistonBasinSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:DJBasinSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:DJBasinSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:PermianBasinSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:PermianBasinSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:PiceanceBasinSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:PiceanceBasinSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:BarnettShaleSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:BarnettShaleSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 smlp:MarcellusShaleSegmentMember us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 smlp:MarcellusShaleSegmentMember us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 us-gaap:OperatingSegmentsMember 2020-09-30 0001549922 us-gaap:OperatingSegmentsMember 2019-12-31 0001549922 us-gaap:CorporateNonSegmentMember 2020-09-30 0001549922 us-gaap:CorporateNonSegmentMember 2019-12-31 0001549922 us-gaap:CorporateNonSegmentMember smlp:DoubleEPipelineLLCMember 2020-09-30 0001549922 us-gaap:CorporateNonSegmentMember smlp:DoubleEPipelineLLCMember 2019-12-31 0001549922 smlp:UticaShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:UticaShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:UticaShaleSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:UticaShaleSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:OhioGatheringSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:OhioGatheringSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:OhioGatheringSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:OhioGatheringSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:WillistonBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:WillistonBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:WillistonBasinSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:WillistonBasinSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:DJBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:DJBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:DJBasinSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:DJBasinSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:PermianBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:PermianBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:PermianBasinSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:PermianBasinSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:PiceanceBasinSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:PiceanceBasinSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:PiceanceBasinSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:PiceanceBasinSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:BarnettShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:BarnettShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:BarnettShaleSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:BarnettShaleSegmentMember 2019-01-01 2019-09-30 0001549922 smlp:MarcellusShaleSegmentMember 2020-07-01 2020-09-30 0001549922 smlp:MarcellusShaleSegmentMember 2019-07-01 2019-09-30 0001549922 smlp:MarcellusShaleSegmentMember 2020-01-01 2020-09-30 0001549922 smlp:MarcellusShaleSegmentMember 2019-01-01 2019-09-30 0001549922 us-gaap:SubsequentEventMember smlp:SeniorNotesDueTwentyTwentyFiveMember 2020-10-31 0001549922 us-gaap:SubsequentEventMember smlp:SeniorNotesDueTwentyTwentyFiveMember 2020-10-01 2020-10-31 0001549922 us-gaap:SubsequentEventMember smlp:TLRestructuringMember smlp:SMPHoldingsMember 2020-10-01 2020-10-31 0001549922 us-gaap:SubsequentEventMember smlp:TLRestructuringMember smlp:SMPHoldingsMember 2020-11-03 0001549922 us-gaap:SubsequentEventMember smlp:SummitMidstreamGPLLCMember smlp:ReverseUnitSplitMember 2020-10-15 2020-10-15 0001549922 us-gaap:SubsequentEventMember smlp:SummitMidstreamGPLLCMember exch:XNYS smlp:ReverseUnitSplitMember 2020-10-15 2020-10-15 0001549922 us-gaap:SubsequentEventMember smlp:SummitMidstreamGPLLCMember smlp:ReverseUnitSplitMember 2020-10-30 0001549922 us-gaap:SubsequentEventMember smlp:SummitMidstreamGPLLCMember smlp:ReverseUnitSplitMember 2020-11-09

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

or

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from        to        

Commission file number: 001-35666

Summit Midstream Partners, LP

(Exact name of registrant as specified in its charter)

 

Delaware

(State or other jurisdiction of

incorporation or organization)

 

45-5200503

(I.R.S. Employer

Identification No.)

 

 

 

910 Louisiana Street, Suite 4200

Houston, TX

(Address of principal executive offices)

 

77002

(Zip Code)

 

(832) 413-4770

(Registrant’s telephone number, including area code)

Not applicable

(Former name, former address and former fiscal year, if changed since last report)

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class

Trading Symbol(s)

Name of each exchange on which registered

Common Units

SMLP

New York Stock Exchange

 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes          No

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

Yes

No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

 

Large accelerated filer

 

Accelerated filer

Non-accelerated filer

 

Smaller reporting company

Emerging growth company

 

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes     No

 

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

 

Class

 

As of October 30, 2020

Common Units

 

56,624,887 units

 

 

 


 

TABLE OF CONTENTS

 

COMMONLY USED OR DEFINED TERMS

2

 

 

 

PART I

FINANCIAL INFORMATION

 

Item 1.

Financial Statements.

 

 

Unaudited Condensed Consolidated Balance Sheets.

4

 

Unaudited Condensed Consolidated Statements of Operations.

5

 

Unaudited Condensed Consolidated Statements of Partners' Capital.

6

 

Unaudited Condensed Consolidated Statements of Cash Flows.

8

 

Notes to Unaudited Condensed Consolidated Financial Statements.

9

Item 2.

Management’s Discussion and Analysis of Financial Condition and Results of Operations.

25

Item 3.

Quantitative and Qualitative Disclosures about Market Risk.

51

Item 4.

Controls and Procedures.

52

 

 

 

PART II

OTHER INFORMATION

53

Item 1.

Legal Proceedings.

53

Item 1A.

Risk Factors.

53

Item 5.

Other Information.

55

Item 6.

Exhibits.

56

 

 

 

SIGNATURES

57

 

1


 

COMMONLY USED OR DEFINED TERMS

2016 Drop Down

the Partnership's March 3, 2016 acquisition from SMP Holdings of substantially all

    of (i) the issued and outstanding membership interests in Summit Utica,

    Meadowlark Midstream and Tioga Midstream and (ii) SMP Holdings’ 40%

    ownership interest in Ohio Gathering

2022 Senior Notes

Summit Holdings' and Finance Corp.’s 5.5% senior unsecured notes due August

    2022

2025 Senior Notes

Summit Holdings' and Finance Corp.’s 5.75% senior unsecured notes due April

    2025

associated natural gas

a form of natural gas which is found with deposits of petroleum, either dissolved

    in the crude oil or as a free gas cap above the crude oil in the reservoir

ASU

Accounting Standards Update

Bbl

one barrel; used for crude oil and produced water and equivalent to 42 U.S. gallons

Bcf

one billion cubic feet

Bison Midstream

Bison Midstream, LLC

Board of Directors

the board of directors of our General Partner

condensate

a natural gas liquid with a low vapor pressure, mainly composed of propane, butane,

    pentane and heavier hydrocarbon fractions

Deferred Purchase Price

    Obligation

the deferred payment liability recognized in connection with the 2016 Drop Down, as

    subsequently amended, also known as the DPPO

DFW Midstream

DFW Midstream Services, LLC

DJ Basin

Denver-Julesburg Basin

Double E

Double E Pipeline, LLC

Double E Project

the development and construction of a long-haul natural gas pipeline with an

    initial throughput capacity of 1.35 billion cubic feet per day that will provide

    transportation service from multiple receipt points in the Delaware Basin

    to various delivery points in and around the Waha Hub in Texas

dry gas

natural gas primarily composed of methane where heavy hydrocarbons and water

    either do not exist or have been removed through processing or treating

Energy Capital Partners

Energy Capital Partners II, LLC and its parallel and co-investment funds

Epping

Epping Transmission Company, LLC

EPU

earnings or loss per unit

FASB

Financial Accounting Standards Board

Finance Corp.

Summit Midstream Finance Corp.

GAAP

accounting principles generally accepted in the United States of America

General Partner

Summit Midstream GP, LLC

GP

general partner

Grand River

Grand River Gathering, LLC

Guarantor Subsidiaries

Bison Midstream and its subsidiaries, Grand River and its subsidiaries, DFW

    Midstream, Summit Marketing, Summit Permian, Permian Finance, OpCo,

    Summit Utica, Meadowlark Midstream, Summit Permian II and Mountaineer

    Midstream

LIBOR

London Interbank Offered Rate

Mbbl

one thousand barrels

Mbbl/d

one thousand barrels per day

Mcf

one thousand cubic feet

Meadowlark Midstream

Meadowlark Midstream Company, LLC

MMcf

one million cubic feet

MMcf/d

one million cubic feet per day

Mountaineer Midstream

Mountaineer Midstream Company, LLC

MVC

minimum volume commitment

NGLs

natural gas liquids; the combination of ethane, propane, normal butane,

    iso-butane and natural gasolines that when removed from unprocessed

    natural gas streams become liquid under various levels of higher

    pressure and lower temperature

Niobrara G&P

Niobrara Gathering and Processing system

OCC

Ohio Condensate Company, L.L.C.

2


 

OGC

Ohio Gathering Company, L.L.C.

Ohio Gathering

Ohio Gathering Company, L.L.C. and Ohio Condensate Company, L.L.C.

OpCo

Summit Midstream OpCo, LP

play

a proven geological formation that contains commercial amounts of hydrocarbons

Permian Finance

Summit Midstream Permian Finance, LLC

Permian Holdco

Summit Permian Transmission Holdco, LLC

Polar and Divide

the Polar and Divide system; collectively Polar Midstream and Epping

Polar Midstream

Polar Midstream, LLC

produced water

water from underground geologic formations that is a by-product of natural gas and

    crude oil production

Red Rock Gathering

Red Rock Gathering Company, LLC

Revolving Credit Facility

the Third Amended and Restated Credit Agreement dated as of May 26, 2017, as

    amended by the First Amendment to Third Amended and Restated Credit

    Agreement dated as of September 22, 2017, the Second Amendment to Third

    Amended and Restated Credit Agreement dated as of June 26, 2019 and

    the Third Amendment to Third Amended and Restated Credit Agreement

    dated as of December 24, 2019

SEC

Securities and Exchange Commission

segment adjusted

    EBITDA

total revenues less total costs and expenses; plus (i) other income excluding interest

    income, (ii) our proportional adjusted EBITDA for equity method investees, (iii)

    depreciation and amortization, (iv) adjustments related to MVC shortfall

    payments, (v) adjustments related to capital reimbursement activity, (vi) unit-

    based and noncash compensation, (vii) impairments and (viii) other noncash

    expenses or losses, less other noncash income or gains

Senior Notes

The 2022 Senior Notes and the 2025 Senior Notes, collectively

Series A Preferred Units

Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units

shortfall payment

the payment received from a counterparty when its volume throughput does not

    meet its MVC for the applicable period

SMLP

Summit Midstream Partners, LP

SMLP Holdings

SMLP Holdings, LLC

SMLP LTIP

SMLP Long-Term Incentive Plan

SMP Holdings

Summit Midstream Partners Holdings, LLC, also known as SMPH

SMPH Term Loan

the Term Loan Agreement, dated as of March 21, 2017, among SMP Holdings,

    as borrower, the lenders party thereto and Credit Suisse AG, Cayman Islands

    Branch, as Administrative Agent and Collateral Agent

Subsidiary Series A

    Preferred Units

Series A Fixed Rate Cumulative Redeemable Preferred Units issued by Permian

    Holdco

Summit Holdings

Summit Midstream Holdings, LLC

Summit Investments

Summit Midstream Partners, LLC

Summit Marketing

Summit Midstream Marketing, LLC

Summit Permian

Summit Midstream Permian, LLC

Summit Permian II

Summit Midstream Permian II, LLC

Summit Permian

    Transmission

Summit Permian Transmission, LLC

Summit Utica

Summit Midstream Utica, LLC

the Company

Summit Midstream Partners, LLC and its subsidiaries

the Partnership

Summit Midstream Partners, LP and its subsidiaries

the Partnership

    Agreement

the Fourth Amended and Restated Agreement of Limited Partnership of the

    Partnership dated May 28, 2020

throughput volume

the volume of natural gas, crude oil or produced water gathered, transported or

    passing through a pipeline, plant or other facility during a particular period;

    also referred to as volume throughput

Tioga Midstream

Tioga Midstream, LLC

unconventional resource

    basin

a basin where natural gas or crude oil production is developed from unconventional

    sources that require hydraulic fracturing as part of the completion process, for

    instance, natural gas produced from shale formations and coalbeds; also

    referred to as an unconventional resource play

wellhead

the equipment at the surface of a well, used to control the well's pressure; also, the

    point at which the hydrocarbons and water exit the ground

 

3


 

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements.

SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS

 

 

September 30,

 

 

December 31,

 

 

 

2020

 

 

2019

 

 

 

(In thousands, except unit amounts)

 

ASSETS

 

 

 

 

 

 

 

 

Cash and cash equivalents

 

$

50,272

 

 

$

9,530

 

Restricted cash

 

 

24

 

 

 

27,392

 

Accounts receivable, net

 

 

76,497

 

 

 

97,418

 

Other current assets

 

 

4,559

 

 

 

5,521

 

Total current assets

 

 

131,352

 

 

 

139,861

 

Property, plant and equipment, net

 

 

1,840,284

 

 

 

1,882,489

 

Intangible assets, net

 

 

207,766

 

 

 

232,278

 

Investment in equity method investees

 

 

389,088

 

 

 

309,728

 

Other noncurrent assets

 

 

4,989

 

 

 

9,742

 

TOTAL ASSETS

 

$

2,573,479

 

 

$

2,574,098

 

 

 

 

 

 

 

 

 

 

LIABILITIES AND CAPITAL

 

 

 

 

 

 

 

 

Trade accounts payable

 

$

16,205

 

 

$

24,415

 

Accrued expenses

 

 

11,353

 

 

 

11,339

 

Deferred revenue

 

 

17,827

 

 

 

13,493

 

Ad valorem taxes payable

 

 

6,931

 

 

 

8,477

 

Accrued interest

 

 

12,092

 

 

 

12,346

 

Accrued environmental remediation

 

 

1,553

 

 

 

1,725

 

Other current liabilities

 

 

10,747

 

 

 

12,206

 

Term loan (See TL Restructuring discussion in Note 8)

 

 

155,200

 

 

 

5,546

 

Total current liabilities

 

 

231,908

 

 

 

89,547

 

Long-term debt

 

 

1,390,842

 

 

 

1,622,279

 

Noncurrent deferred revenue

 

 

41,755

 

 

 

38,709

 

Noncurrent accrued environmental remediation

 

 

2,003

 

 

 

2,926

 

Other noncurrent liabilities

 

 

4,536

 

 

 

7,951

 

Total liabilities

 

 

1,671,044

 

 

 

1,761,412

 

Commitments and contingencies (Note 14)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mezzanine Capital

 

 

 

 

 

 

 

 

Subsidiary Series A Preferred Units (83,842 and 30,058 units issued and outstanding at September 30, 2020 and December 31, 2019, respectively)

 

 

85,800

 

 

 

27,450

 

 

 

 

 

 

 

 

 

 

Partners' Capital

 

 

 

 

 

 

 

 

Series A Preferred Units (237,184 and 300,000 units issued and outstanding at September 30, 2020 and December 31, 2019, respectively)

 

 

249,351

 

 

 

293,616

 

Common limited partner capital (56,624,887 and 45,318,866 units issued and outstanding at September 30, 2020 and December 31, 2019, respectively)

 

 

567,284

 

 

 

305,550

 

Noncontrolling interest

 

 

-

 

 

 

186,070

 

Total partners' capital

 

 

816,635

 

 

 

785,236

 

TOTAL LIABILITIES AND CAPITAL

 

$

2,573,479

 

 

$

2,574,098

 

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

4


 

SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

 

 

Three months ended September 30,

 

 

Nine months ended September 30,

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

 

 

(In thousands, except per-unit amounts)

 

Revenues:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gathering services and related fees

 

$

71,964

 

 

$

80,968

 

 

$

229,667

 

 

$

243,039

 

Natural gas, NGLs and condensate sales

 

 

10,783

 

 

 

12,219

 

 

 

35,246

 

 

 

68,438

 

Other revenues

 

 

7,406

 

 

 

7,000

 

 

 

22,150

 

 

 

19,804

 

Total revenues

 

 

90,153

 

 

 

100,187

 

 

 

287,063

 

 

 

331,281

 

Costs and expenses:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cost of natural gas and NGLs

 

 

8,632

 

 

 

7,472

 

 

 

22,945

 

 

 

50,802

 

Operation and maintenance

 

 

22,168

 

 

 

26,231

 

 

 

65,131

 

 

 

74,771

 

General and administrative

 

 

10,561

 

 

 

10,029

 

 

 

39,908

 

 

 

38,979

 

Depreciation and amortization

 

 

29,505

 

 

 

27,443

 

 

 

88,801

 

 

 

82,044

 

Transaction costs

 

 

726

 

 

 

129

 

 

 

1,944

 

 

 

2,562

 

Gain on asset sales, net

 

 

(104

)

 

 

(347

)

 

 

(270

)

 

 

(1,595

)

Long-lived asset impairment

 

 

 

 

 

 

 

 

4,475

 

 

 

45,021

 

Goodwill impairment

 

 

 

 

 

16,211

 

 

 

 

 

 

16,211

 

Total costs and expenses

 

 

71,488

 

 

 

87,168

 

 

 

222,934

 

 

 

308,795

 

Other income

 

 

795

 

 

 

12

 

 

 

644

 

 

 

304

 

Interest expense

 

 

(19,018

)

 

 

(23,462

)

 

 

(64,836

)

 

 

(68,547

)

Gain on early extinguishment of debt

 

 

24,690

 

 

 

 

 

 

78,925

 

 

 

 

Income (loss) before income taxes and

   equity method investment income (loss)

 

 

25,132

 

 

 

(10,431

)

 

 

78,862

 

 

 

(45,757

)

Income tax benefit (expense)

 

 

(298

)

 

 

(21

)

 

 

104

 

 

 

(1,427

)

Income (loss) from equity method investees

 

 

795

 

 

 

(677

)

 

 

7,146

 

 

 

(1,197

)

Net income (loss)

 

$

25,629

 

 

$

(11,129

)

 

$

86,112

 

 

$

(48,381

)

Less:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) attributable to noncontrolling interest

 

 

 

 

 

(10,340

)

 

 

(3,274

)

 

 

(37,251

)

Net income (loss) attributable to limited partners

 

 

25,629

 

 

 

(789

)

 

 

89,386

 

 

 

(11,130

)

Net income attributable to Series A Preferred Units

 

 

6,481

 

 

 

7,125

 

 

 

20,731

 

 

 

21,375

 

Net income attributable to Subsidiary Series A Preferred Units

 

 

7,298

 

 

 

 

 

 

9,640

 

 

 

 

Add:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Deemed contribution on exchange of preferred units

 

 

54,945

 

 

 

 

 

 

54,945

 

 

 

 

Net income (loss) attributable to common limited partners

 

$

66,795

 

 

$

(7,914

)

 

$

113,960

 

 

$

(32,505

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Net income (loss) per limited partner unit:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common unit – basic

 

$

1.29

 

 

$

(0.17

)

 

$

2.41

 

 

$

(0.72

)

Common unit – diluted

 

$

1.25

 

 

$

(0.17

)

 

$

2.34

 

 

$

(0.72

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Weighted-average limited partner units outstanding:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Common units – basic

 

 

51,974

 

 

 

45,319

 

 

 

47,331

 

 

 

45,319

 

Common units – diluted

 

 

53,650

 

 

 

45,319

 

 

 

48,782

 

 

 

45,319

 

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

 

5


 

SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Noncontrolling Interest

 

 

Partners' Capital

 

 

 

 

 

 

 

Series A Preferred Units

 

 

Common Noncontrolling Interests (1)

 

 

Series A Preferred Units

 

 

Partners' Capital

 

 

Total

 

 

 

(In thousands)

 

Partners' capital, January 1, 2020

 

$

293,616

 

 

$

186,070

 

 

$

 

 

$

305,550

 

 

$

785,236

 

Net income (loss)

 

 

7,125

 

 

 

(1,881

)

 

 

 

 

 

(2,427

)

 

 

2,817

 

Net cash distributions to SMLP

    unitholders

 

 

 

 

 

(6,037

)

 

 

 

 

 

 

 

 

(6,037

)

Unit-based compensation

 

 

 

 

 

2,723

 

 

 

 

 

 

 

 

 

2,723

 

Effect of common unit issuances under

    SMLP LTIP

 

 

 

 

 

2,322

 

 

 

 

 

 

(2,322

)

 

 

 

Tax withholdings and associated

    payments on vested SMLP LTIP

    awards

 

 

 

 

 

(984

)

 

 

 

 

 

 

 

 

(984

)

Partners' capital, March 31, 2020

 

 

300,741

 

 

 

182,213

 

 

 

 

 

 

300,801

 

 

 

783,755

 

Net income (loss)

 

 

4,750

 

 

 

(1,393

)

 

 

2,375

 

 

 

49,592

 

 

 

55,324

 

Unit-based compensation

 

 

 

 

 

1,331

 

 

 

 

 

 

515

 

 

 

1,846

 

Tax withholdings and associated

    payments on vested SMLP LTIP

    awards

 

 

 

 

 

(34

)

 

 

 

 

 

(28

)

 

 

(62

)

GP Buy-In Transaction assumption of

    noncontrolling interest in SMLP

 

 

(305,491

)

 

 

(182,117

)

 

 

305,491

 

 

 

182,117

 

 

 

 

Repurchase of common units under GP

    Buy-In Transaction

 

 

 

 

 

 

 

 

 

 

 

(44,078

)

 

 

(44,078

)

Other

 

 

 

 

 

 

 

 

 

 

 

(61

)

 

 

(61

)

Partners' capital, June 30, 2020

 

 

 

 

 

 

 

 

307,866

 

 

 

488,858

 

 

 

796,724

 

Net income (loss)

 

 

 

 

 

 

 

 

6,481

 

 

 

11,850

 

 

 

18,331

 

Unit-based compensation

 

 

 

 

 

 

 

 

 

 

 

1,622

 

 

 

1,622

 

Tax withholdings and associated

   payments on vested SMLP LTIP

    awards

 

 

 

 

 

 

 

 

 

 

 

(117

)

 

 

(117

)

Tax withholdings on Series A Preferred

    Unit Exchange

 

 

 

 

 

 

 

 

 

 

 

(237

)

 

 

(237

)

Conversion of Series A Preferred Units to     

    SMLP common units inclusive of a

    $54.9 million deemed contribution to

    common unit holders (Note 10)

 

 

 

 

 

 

 

 

(64,996

)

 

 

64,996

 

 

 

 

Other

 

 

 

 

 

 

 

 

 

 

 

312

 

 

 

312

 

Partners' capital, September 30, 2020

 

$

-

 

 

$

-

 

 

$

249,351

 

 

$

567,284

 

 

$

816,635

 

(1) Prior to the GP Buy-In Transaction, common noncontrolling interests reported by Summit Investments included equity interests in SMLP that were not owned by Summit Investments.

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

 

 

6


 

SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF PARTNERS' CAPITAL

(continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Noncontrolling Interest

 

 

 

 

 

 

 

 

 

 

 

Series A Preferred Units

 

 

Common Noncontrolling Interests(1)

 

 

Partners' Capital

 

 

Total

 

 

 

(In thousands)

 

Partners' capital, January 1, 2019

 

$

293,616

 

 

$

554,472

 

 

$

543,479

 

 

$

1,391,567

 

Net income (loss)

 

 

7,125

 

 

 

(25,570

)

 

 

(21,835

)

 

 

(40,280

)

Net cash distributions to SMLP unitholders

 

 

 

 

 

(27,374

)

 

 

 

 

 

(27,374

)

Unit-based compensation

 

 

 

 

 

2,526

 

 

 

 

 

 

2,526

 

Effect of common unit issuances under

    SMLP LTIP

 

 

 

 

 

2,387

 

 

 

(2,387

)

 

 

 

Tax withholdings and associated

    payments on vested SMLP LTIP

    awards

 

 

 

 

 

(2,524

)

 

 

 

 

 

(2,524

)

Conversion of noncontrolling interest related

    to cancellation of subsidiary incentive

    distribution rights

 

 

 

 

 

(48,203

)

 

 

48,203

 

 

 

 

Partners' capital, March 31, 2019

 

 

300,741

 

 

 

455,714

 

 

 

567,460

 

 

 

1,323,915

 

Net income (loss)

 

 

7,125

 

 

 

(1,341

)

 

 

(2,756

)

 

 

3,028

 

Net cash distributions to SMLP unitholders

 

 

(14,250

)

 

 

(13,826

)

 

 

 

 

 

(28,076

)

Net cash distributions to Energy Capital

    Partners

 

 

 

 

 

 

 

 

(68,984

)

 

 

(68,984

)

Unit-based compensation

 

 

 

 

 

1,393

 

 

 

 

 

 

1,393

 

Effect of common unit issuances under

    SMLP LTIP

 

 

 

 

 

40

 

 

 

(40

)

 

 

 

Tax withholdings and associated

    payments on vested SMLP LTIP

    awards

 

 

 

 

 

(93

)

 

 

 

 

 

(93

)

Partners' capital, June 30, 2019

 

 

293,616

 

 

 

441,887

 

 

 

495,680

 

 

 

1,231,183

 

Net income (loss)

 

 

7,125

 

 

 

(10,340

)

 

 

(7,914

)

 

 

(11,129

)

Net cash distributions to SMLP unitholders

 

 

 

 

 

(13,829

)

 

 

 

 

 

(13,829

)

Unit-based compensation

 

 

 

 

 

1,451

 

 

 

 

 

 

1,451

 

Effect of common unit issuances under

    SMLP LTIP

 

 

 

 

 

173

 

 

 

(173

)

 

 

 

Tax withholdings and associated

    payments on vested SMLP LTIP

    awards

 

 

 

 

 

55

 

 

 

 

 

 

55

 

Partners' capital, September 30, 2019

 

$

300,741

 

 

$

419,397

 

 

$

487,593

 

 

$

1,207,731

 

(1) Prior to the GP Buy-In Transaction, common noncontrolling interests reported by Summit Investments included equity interests in SMLP that were not owned by Summit Investments.

The accompanying notes are an integral part of these unaudited condensed consolidated financial statements.

 

7


 

SUMMIT MIDSTREAM PARTNERS, LP AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

 

 

Nine months ended September 30,

 

 

 

2020

 

 

2019

 

 

 

(In thousands)

 

Cash flows from operating activities:

 

 

 

 

 

 

 

 

Net income (loss)

 

$

86,112

 

 

$

(48,381

)

Adjustments to reconcile net income (loss) to net

    cash provided by operating activities:

 

 

 

 

 

 

 

 

Depreciation and amortization

 

 

89,505

 

 

 

83,030

 

Noncash lease expense

 

 

1,925

 

 

 

2,299

 

Amortization of debt issuance costs

 

 

4,870

 

 

 

4,719

 

Unit-based and noncash compensation

 

 

6,191

 

 

 

5,370

 

(Income) loss from equity method investees

 

 

(7,146

)

 

 

1,197

 

Distributions from equity method investees

 

 

19,859

 

 

 

28,008

 

Gain on asset sales, net

 

 

(270

)

 

 

(1,595

)

Gain on early extinguishment of debt

 

 

(78,925

)

 

 

 

Gain on fair value of warrants

 

 

(838

)

 

 

 

Long-lived asset impairment

 

 

4,475

 

 

 

45,021

 

Goodwill impairment

 

 

 

 

 

16,211

 

Changes in operating assets and liabilities:

 

 

 

 

 

 

 

 

Accounts receivable

 

 

20,922

 

 

 

8,363

 

Trade accounts payable

 

 

470

 

 

 

820

 

Accrued expenses

 

 

(1,078

)

 

 

(11,965

)

Deferred revenue, net

 

 

7,379

 

 

 

1,910

 

Ad valorem taxes payable

 

 

(1,546

)

 

 

(2,061

)

Accrued interest

 

 

2,680

 

 

 

3,065

 

Accrued environmental remediation, net

 

 

(1,368

)

 

 

(2,025

)

Other, net

 

 

(6,410

)

 

 

(6,369

)

Net cash provided by operating activities

 

 

146,807

 

 

 

127,617

 

Cash flows from investing activities: