M3’s Stonewall Gathering System in WV Gets New Investor/Partner

In April 2015 MDN told you that a section of M3 Midstream’s Appalachia Gathering System (AGS) had been spun off into its own company called Stonewall Gathering System (see M3’s New Stonewall Gathering System Extends Existing AGS in WV). At the time, plans were under way to build out gathering pipelines in West Virginia’s Harrison and Doddridge counties, running through Lewis and into Braxton County where the pipeline will connect with Columbia Transmission’s interstate pipeline. The plans came to fruition and the Stonewall Gathering System was built and now gathers 1 billion cubic feet of Marcellus Shale gas per day (see Construction on WV Stonewall Gather Pipeline Begins, Runs Thru Dec). The project now has a new investor/co-owner. WGL Midstream announced yesterday that it has exercised an option to invest $89 million in the Stonewall Gas Gathering System, representing a 35% ownership stake…

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