On the Record · DT Midstream
DT Midstream subsidiaries, as it lists them
The subsidiaries DT Midstream lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Bluestone Pipeline Company of Pennsylvania, LLC | Pennsylvania |
| DTM Appalachia Gathering, LLC | Delaware |
| DTM Interstate Transportation, LLC | Delaware |
| DTM LEAP Gas Gathering, LLC | Delaware |
| DTM Louisiana Gathering, LLC | Delaware |
| DTM Millennium Company | Michigan |
| DTM Nexus, LLC | Delaware |
| DTM Vector Company | Michigan |
| Guardian Pipeline, LLC | Delaware |
| Midwestern Gas Transmission Company | Delaware |
| Stonewall Gas Gathering LLC | Delaware |
| Stonewall Gas Holdings, LLC | Delaware |
| Susquehanna Gathering Company I, LLC | Pennsylvania |
| Viking Gas Transmission Company | Delaware |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from DT Midstream’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-19. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.