EX-21.1 5 a12312023ex211.htm EX-21.1 Document

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.
SubsidiaryState of Incorporation
1Bluestone Gas Corporation of New York, Inc.New York
2Bluestone Pipeline Company of Pennsylvania, LLCPennsylvania
3DTM Appalachia Gathering, LLCDelaware
4DTM LEAP Gas Gathering, LLCDelaware
5DTM Louisiana Gathering, LLCDelaware
6DTM Millennium CompanyMichigan
7DTM Nexus, LLCDelaware
8DTM Vector CompanyMichigan
9Stonewall Gas Gathering LLCDelaware
10Stonewall Gas Holdings, LLCDelaware
11Susquehanna Gathering Company I, LLCPennsylvania