EX-21.1 5 a12312023ex211.htm EX-21.1
Exhibit 21.1
SUBSIDIARIES OF DT MIDSTREAM, INC.
DT Midstream’s principal subsidiaries as of December 31, 2023 are listed below. All other subsidiaries, if considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary.

Subsidiary |  | State of Incorporation
1 | Bluestone Gas Corporation of New York, Inc. |  | New York
2 | Bluestone Pipeline Company of Pennsylvania, LLC |  | Pennsylvania
3 | DTM Appalachia Gathering, LLC |  | Delaware
4 | DTM LEAP Gas Gathering, LLC |  | Delaware
5 | DTM Louisiana Gathering, LLC |  | Delaware
6 | DTM Millennium Company |  | Michigan
7 | DTM Nexus, LLC |  | Delaware
8 | DTM Vector Company |  | Michigan
9 | Stonewall Gas Gathering LLC |  | Delaware
10 | Stonewall Gas Holdings, LLC |  | Delaware
11 | Susquehanna Gathering Company I, LLC |  | Pennsylvania