Segment disclosures

Company overview

BOARDWALK PIPELINE PARTNERS, LP

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

13 dimension combinations 153 retained observations 12 reported periods

Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.

Operating Segments · Firm Service Contracts · Natural Gas Liquids Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:FirmServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30128900000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30263200000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31134300000 USD20260504Open filing evidence
2025-01-01 – 2025-12-31609100000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30148000000 USD20251103Open filing evidence
2025-01-01 – 2025-09-30442500000 USD20251103Open filing evidence
2025-04-01 – 2025-06-30141700000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30294500000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31152800000 USD20260504Open filing evidence
2024-01-01 – 2024-12-31452600000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30108500000 USD20251103Open filing evidence
2024-01-01 – 2024-09-30302200000 USD20251103Open filing evidence
2024-04-01 – 2024-06-30108100000 USD20250804Open filing evidence
2024-01-01 – 2024-06-30193700000 USD20250804Open filing evidence
2024-01-01 – 2024-03-3185600000 USD20250505Open filing evidence
2023-01-01 – 2023-12-31262700000 USD20260210Open filing evidence
2022-01-01 – 2022-12-31174000000 USD20250211Open filing evidence

Operating Segments · Firm Service Contracts · Natural Gas Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:FirmServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30356100000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30762000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31405900000 USD20260504Open filing evidence
2025-01-01 – 2025-12-311495500000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30348400000 USD20251103Open filing evidence
2025-01-01 – 2025-09-301097400000 USD20251103Open filing evidence
2025-04-01 – 2025-06-30339200000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-06-30732500000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-03-31393300000 RestatedUSD20260504Open filing evidence
2024-01-01 – 2024-12-311353900000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30312700000 USD20251103Open filing evidence
2024-01-01 – 2024-09-30979300000 USD20251103Open filing evidence
2024-04-01 – 2024-06-30304500000 USD20250804Open filing evidence
2024-01-01 – 2024-06-30666600000 USD20250804Open filing evidence
2024-01-01 – 2024-03-31362100000 USD20250505Open filing evidence
2023-01-01 – 2023-12-311253100000 USD20260210Open filing evidence
2022-01-01 – 2022-12-311157800000 USD20250211Open filing evidence

Operating Segments · Interruptible Service Contracts · Natural Gas Liquids Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:InterruptibleServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-300 USD20260803Open filing evidence
2026-01-01 – 2026-06-300 USD20260803Open filing evidence
2026-01-01 – 2026-03-310 USD20260504Open filing evidence
2025-01-01 – 2025-12-310 USD20260210Open filing evidence
2025-07-01 – 2025-09-300 USD20251103Open filing evidence
2025-01-01 – 2025-09-300 USD20251103Open filing evidence
2025-04-01 – 2025-06-300 USD20260803Open filing evidence
2025-01-01 – 2025-06-300 USD20260803Open filing evidence
2025-01-01 – 2025-03-310 USD20260504Open filing evidence
2024-01-01 – 2024-12-31100000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30100000 USD20251103Open filing evidence
2024-01-01 – 2024-09-30100000 USD20251103Open filing evidence
2024-04-01 – 2024-06-300 USD20250804Open filing evidence
2024-01-01 – 2024-06-300 USD20250804Open filing evidence
2024-01-01 – 2024-03-310 USD20250505Open filing evidence
2023-01-01 – 2023-12-310 USD20260210Open filing evidence
2022-01-01 – 2022-12-310 USD20250211Open filing evidence

Operating Segments · Interruptible Service Contracts · Natural Gas Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:InterruptibleServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3019800000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3041700000 USD20260803Open filing evidence
2026-01-01 – 2026-03-3121900000 USD20260504Open filing evidence
2025-01-01 – 2025-12-3165100000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3016600000 USD20251103Open filing evidence
2025-01-01 – 2025-09-3050600000 USD20251103Open filing evidence
2025-04-01 – 2025-06-3020600000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-06-3033600000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-03-3113000000 USD20260504Open filing evidence
2024-01-01 – 2024-12-3159100000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3014900000 USD20251103Open filing evidence
2024-01-01 – 2024-09-3046900000 USD20251103Open filing evidence
2024-04-01 – 2024-06-3020100000 USD20250804Open filing evidence
2024-01-01 – 2024-06-3032000000 USD20250804Open filing evidence
2024-01-01 – 2024-03-3111900000 USD20250505Open filing evidence
2023-01-01 – 2023-12-3151600000 USD20260210Open filing evidence
2022-01-01 – 2022-12-3161200000 USD20250211Open filing evidence

Operating Segments · Other Revenues Contracts · Natural Gas Liquids Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:OtherRevenuesContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3038100000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3085000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-3146900000 USD20260504Open filing evidence
2025-01-01 – 2025-12-31119000000 USD20260210Open filing evidence
2025-07-01 – 2025-09-3024900000 USD20251103Open filing evidence
2025-01-01 – 2025-09-3091500000 USD20251103Open filing evidence
2025-04-01 – 2025-06-3020400000 USD20260803Open filing evidence
2025-01-01 – 2025-06-3066600000 USD20260803Open filing evidence
2025-01-01 – 2025-03-3146200000 USD20260504Open filing evidence
2024-01-01 – 2024-12-31144900000 USD20260210Open filing evidence
2024-07-01 – 2024-09-3034600000 USD20251103Open filing evidence
2024-01-01 – 2024-09-30118900000 USD20251103Open filing evidence
2024-04-01 – 2024-06-3042000000 USD20250804Open filing evidence
2024-01-01 – 2024-06-3084300000 USD20250804Open filing evidence
2024-01-01 – 2024-03-3142300000 USD20250505Open filing evidence
2023-01-01 – 2023-12-3136800000 USD20260210Open filing evidence
2022-01-01 – 2022-12-3120500000 USD20250211Open filing evidence

Operating Segments · Other Revenues Contracts · Natural Gas Reportable Segment

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=bwp:OtherRevenuesContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-3018900000 USD20260803Open filing evidence
2026-01-01 – 2026-06-3021600000 USD20260803Open filing evidence
2026-01-01 – 2026-03-312700000 USD20260504Open filing evidence
2025-01-01 – 2025-12-317600000 USD20260210Open filing evidence
2025-07-01 – 2025-09-30400000 USD20251103Open filing evidence
2025-01-01 – 2025-09-304700000 USD20251103Open filing evidence
2025-04-01 – 2025-06-301100000 USD20260803Open filing evidence
2025-01-01 – 2025-06-304300000 USD20260803Open filing evidence
2025-01-01 – 2025-03-313200000 USD20260504Open filing evidence
2024-01-01 – 2024-12-317600000 USD20260210Open filing evidence
2024-07-01 – 2024-09-30300000 USD20251103Open filing evidence
2024-01-01 – 2024-09-307000000 USD20251103Open filing evidence
2024-04-01 – 2024-06-30400000 USD20250804Open filing evidence
2024-01-01 – 2024-06-306700000 USD20250804Open filing evidence
2024-01-01 – 2024-03-316300000 USD20250505Open filing evidence
2023-01-01 – 2023-12-313400000 USD20260210Open filing evidence
2022-01-01 – 2022-12-319400000 USD20250211Open filing evidence

Operating Segments · Natural Gas Liquids Reportable Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30176100000 RestatedUSD20260803Open filing evidence
2026-01-01 – 2026-06-30366400000 RestatedUSD20260803Open filing evidence
2026-01-01 – 2026-03-31190300000 RestatedUSD20260504Open filing evidence
2025-01-01 – 2025-12-31765000000 RestatedUSD20260210Open filing evidence
2025-07-01 – 2025-09-30182200000 RestatedUSD20251103Open filing evidence
2025-01-01 – 2025-09-30561700000 RestatedUSD20251103Open filing evidence
2025-04-01 – 2025-06-30171600000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-06-30379500000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-03-31207900000 RestatedUSD20260504Open filing evidence
2024-01-01 – 2024-12-31635400000 RestatedUSD20260210Open filing evidence
2024-07-01 – 2024-09-30152900000 RestatedUSD20251103Open filing evidence
2024-01-01 – 2024-09-30449600000 RestatedUSD20251103Open filing evidence
2024-04-01 – 2024-06-30159500000 RestatedUSD20250804Open filing evidence
2024-01-01 – 2024-06-30296700000 RestatedUSD20250804Open filing evidence
2024-01-01 – 2024-03-31137200000 RestatedUSD20250505Open filing evidence
2023-01-01 – 2023-12-31333000000 RestatedUSD20260210Open filing evidence
2022-01-01 – 2022-12-31226200000 RestatedUSD20250211Open filing evidence

Operating Segments · Natural Gas Reportable Segment

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30396200000 RestatedUSD20260803Open filing evidence
2026-01-01 – 2026-06-30829000000 RestatedUSD20260803Open filing evidence
2026-01-01 – 2026-03-31432800000 RestatedUSD20260504Open filing evidence
2025-01-01 – 2025-12-311591500000 RestatedUSD20260210Open filing evidence
2025-07-01 – 2025-09-30370800000 RestatedUSD20251103Open filing evidence
2025-01-01 – 2025-09-301169800000 RestatedUSD20251103Open filing evidence
2025-04-01 – 2025-06-30362400000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-06-30773100000 RestatedUSD20260803Open filing evidence
2025-01-01 – 2025-03-31410700000 RestatedUSD20260504Open filing evidence
2024-01-01 – 2024-12-311442100000 RestatedUSD20260210Open filing evidence
2024-07-01 – 2024-09-30333200000 RestatedUSD20251103Open filing evidence
2024-01-01 – 2024-09-301049200000 RestatedUSD20251103Open filing evidence
2024-04-01 – 2024-06-30330300000 RestatedUSD20250804Open filing evidence
2024-01-01 – 2024-06-30716000000 RestatedUSD20250804Open filing evidence
2024-01-01 – 2024-03-31385700000 RestatedUSD20250505Open filing evidence
2023-01-01 – 2023-12-311314700000 RestatedUSD20260210Open filing evidence
2022-01-01 – 2022-12-311230700000 RestatedUSD20250211Open filing evidence

Boardwalk Ethane Pipeline Holdco LLC · Boardwalk Resources Company LLC · Firm Service Contracts · Natural Gas Liquids Reportable Segment

Business Acquisition · Legal Entity · Product Or Service · Statement Business Segments

Source dimensions us-gaap:BusinessAcquisitionAxis=bwp:BoardwalkEthanePipelineHoldcoLLCMember;dei:LegalEntityAxis=bwp:BoardwalkResourcesCompanyLLCMember;srt:ProductOrServiceAxis=bwp:FirmServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-31243600000 USD20250211Open filing evidence
2023-01-01 – 2023-12-3174900000 USD20250211Open filing evidence

Boardwalk Ethane Pipeline Holdco LLC · Boardwalk Resources Company LLC · Interruptible Service Contracts · Natural Gas Liquids Reportable Segment

Business Acquisition · Legal Entity · Product Or Service · Statement Business Segments

Source dimensions us-gaap:BusinessAcquisitionAxis=bwp:BoardwalkEthanePipelineHoldcoLLCMember;dei:LegalEntityAxis=bwp:BoardwalkResourcesCompanyLLCMember;srt:ProductOrServiceAxis=bwp:InterruptibleServiceContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-12-31114400000 USD20250211Open filing evidence
2023-01-01 – 2023-12-3125400000 USD20250211Open filing evidence

Boardwalk Ethane Pipeline Holdco LLC · Boardwalk Resources Company LLC · Other Revenues Contracts · Natural Gas Liquids Reportable Segment

Business Acquisition · Legal Entity · Product Or Service · Statement Business Segments

Source dimensions us-gaap:BusinessAcquisitionAxis=bwp:BoardwalkEthanePipelineHoldcoLLCMember;dei:LegalEntityAxis=bwp:BoardwalkResourcesCompanyLLCMember;srt:ProductOrServiceAxis=bwp:OtherRevenuesContractsMember;us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-311200000 USD20250211Open filing evidence

Natural Gas Liquids Reportable Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasLiquidsReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30176100000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30366400000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31190300000 USD20260504Open filing evidence
2025-04-01 – 2025-06-30171600000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30379500000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31207900000 USD20260504Open filing evidence

Natural Gas Reportable Segment

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=bwp:NaturalGasReportableSegmentMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30396200000 USD20260803Open filing evidence
2026-01-01 – 2026-06-30829000000 USD20260803Open filing evidence
2026-01-01 – 2026-03-31432800000 USD20260504Open filing evidence
2025-04-01 – 2025-06-30362400000 USD20260803Open filing evidence
2025-01-01 – 2025-06-30773100000 USD20260803Open filing evidence
2025-01-01 – 2025-03-31410700000 USD20260504Open filing evidence