Most 2025 Gas Pipeline Capacity Targets Gulf Coast Demand
U.S. natural gas pipeline projects completed in 2025 added 6.3 billion cubic feet per day of new capacity, with 85% directed to the Gulf Coast to support rising LNG and regional demand.
(P&GJ) — U.S. natural gas pipeline projects completed in 2025 added approximately 6.3 billion cubic feet per day of new capacity, with the vast majority of that volume directed toward the South Central region, according to the U.S. Energy Information Administration’s (EIA) updated Natural Gas Pipeline Projects Tracker.
About 85% of the new capacity, or 5.3 billion cubic feet per day, was built to deliver natural gas into the South Central region, which includes the Gulf Coast. The region continues to see rising demand, particularly from liquefied natural gas (LNG) export facilities.
Much of the added capacity connects new and existing supply sources to Gulf Coast consumers.
Intrastate projects accounted for roughly 65% of total capacity additions in 2025, continuing a recent trend in which intrastate builds outpace interstate expansions. Because these pipelines operate primarily within state lines, they are not subject to Federal Energy Regulatory Commission (FERC) jurisdiction.
Most of the new intrastate capacity functions as gathering systems, transporting production volumes into the broader transmission network. Two projects — the Louisiana Energy Gateway and the New Generation Gas Gathering system — added a combined 3.5 billion cubic feet per day to move Haynesville production to the Gillis Hub in southeastern Louisiana. The Louisiana Energy Gateway contributed 1.8 billion cubic feet per day, while New Generation Gas Gathering added 1.7 billion cubic feet per day. Both projects entered service in October 2025.
In addition, three projects expanded pipeline capacity to serve growing Gulf Coast demand centers by a combined 1.8 billion cubic feet per day. The Evangeline Pass Expansion added 1.1 billion cubic feet per day, and the East Lateral Xpress Project added 0.3 billion cubic feet per day, both delivering feedgas directly to Plaquemines LNG, which shipped its first cargo in 2025. The Texas to Louisiana Pathway Project added 0.4 billion cubic feet per day of interstate capacity from Texas to eastern Louisiana.