Particle.news

Download on the App Store

U.S. Firms Seek to Restart and Expand Appalachian Gas Pipelines

Federal energy deregulation has prompted new filings for stalled Northeast projects despite capacity bottlenecks and environmental protests.

Environmental activists protest outside of Shale Insight 2024 held by the Marcellus Shale Coalition in Erie, Pennsylvania, U.S., September 25, 2024. REUTERS/Hannah Beier/File Photo
A view of a well site which sits atop the natural gas-rich Marcellus shale formation in Western Pennsylvania outside of Union City, Pennsylvania, U.S., October 23, 2020.  REUTERS/Shannon Stapleton/File Photo

Overview

  • Major operators including Williams, EQT, DT Midstream and Boardwalk have filed or are evaluating revivals of the Constitution and Northeast Supply Enhancement pipelines to boost flows to New York and New Jersey.
  • EIA data show Appalachia output growth slowed to 2% annually from 2020 to 2024 and is projected to rise just 1% a year to about 36.6 bcfd in 2026 due to near-capacity infrastructure.
  • Analysts expect rising LNG export capacity and AI data-center power needs to drive U.S. gas demand to record highs and add as much as 5 bcfd of Appalachian supply demand through 2030.
  • The Sierra Club and other environmental groups have lodged protests with FERC, reviving familiar legal challenges over pipeline permitting.
  • Projects under development include Millennium’s 0.5 bcfd expansion targeting a 2029 start date and EQT’s Southgate extension to North Carolina scheduled for 2028.