Appalachia Natural Gas Midstream Expansions Heat Up

With the Mountain Valley Pipeline (MVP) project clearing some major legal hurdles in recent weeks and construction resuming, it’s become increasingly likely that Appalachian gas producers will soon have 2 Bcf/d of new takeaway capacity, potentially as early as late 2023. However, the degree to which the pipeline will translate into higher production from the supply basin and improved supply access for the gas-thirsty, premium markets in the Southeast will largely depend on the availability of transportation capacity downstream of MVP. As such, the race is on to expand pipeline capacity from the pipe’s termination point at Williams’s Transco Pipeline Station 165 in southern Virginia, not only to deal with the impending influx of supply from MVP but also to move that gas to growing demand centers in Virginia and the Carolinas. MVP’s lead developer, Equitrans Midstream, is hoping to build an extension to the mainline — the MVP Southgate project — while Transco has designs of its own for capturing downstream customers. In today’s RBN blog, we provide an update on MVP and the various expansion projects in the works to move newly available supply to market.

It took an “Act of Congress” and a decision from the highest court in the land — handed down by the Chief Justice no less — but it’s looking more and more like Mountain Valley Pipeline (MVP) will be completed as early as by the end of this year, opening up 2 Bcf/d of new takeaway capacity for the increasingly pipeline-constrained Appalachian gas supply basin. That’s shifted the industry’s gaze to bottlenecks downstream of where the bulk of the volumes flowing on the new pipeline will land — on the doorstep of Williams’s Transco Pipeline in southern Virginia. A number of midstream expansions have been announced to capture the influx of natural gas supply from MVP and shuttle it to downstream markets in the Mid-Atlantic and Southeast regions, and indications are that more will be announced and greenlighted in the coming months. These projects will be key to both enabling gas production growth in the Appalachia basin as well as meeting growing gas demand in the premium markets lying on the other side of the constraints. In today’s RBN blog, we delve into the details and timing of the announced expansion projects vying to increase market access to MVP supply.

Appalachian natural gas producers got good news earlier this month: Williams announced it was moving forward with the Southeast Supply Enhancement project, a large-scale expansion of southbound capacity out of the Northeast on its Transco Pipeline system. Not only that, but it super-sized the project to 1.4 Bcf/d of capacity — nearly double the 800 MMcf/d it had offered in an open season held this summer. The project is one of several brownfield expansions planned to provide additional supply access in Transco’s premium Zone 5 market area, which runs through Virginia and North Carolina — and the first large-scale takeaway expansion to be announced in the area since the long-delayed Mountain Valley Pipeline (MVP) was cleared for completion following years of regulatory and legal hurdles. In today’s RBN blog, we provide the latest on the Transco Corridor expansions.