Columbia Gas Open Season for Extra 500 MMcf/d of M-U Capacity in OH

November 17, 2025November 17, 2025

Existing pipelines in the Marcellus/Utica region are testing the market for expansion. Two weeks ago, we told you that DT Midstream (50% owner of NEXUS Pipeline) is eyeing the growing AI data center market in northwestern Ohio as a customer for M-U molecules that flow through NEXUS (see DT Midstream Eyes Data Center/Power Market for NEXUS Pipeline). Now comes the news that TC Energy, the owner of the Columbia Gas Transmission (CGT) pipeline network, is conducting a non-binding open season to expand CGT capacity in Ohio, including in Columbus, Toledo, Lima, and other locations.

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