Momentum Midstream’s NG3 Pipeline Starts Early, Boosts Haynesville Capacity

Momentum Midstream’s NG3 pipeline in Louisiana began early gas deliveries, adding 300 MMcf/d of new takeaway capacity from the Haynesville Shale as Gulf Coast LNG demand accelerates, according to Wood Mackenzie.

(P&GJ) — Momentum Midstream’s New Generation Gas Gathering (NG3) pipeline in Louisiana has begun flowing natural gas months ahead of schedule, marking another boost in takeaway capacity from the Haynesville Shale.

The intrastate system quietly entered commissioning in late August, with steady deliveries of roughly 300 million cubic feet per day (MMcf/d) across four interconnects through September. NG3 was originally expected to enter service in late fourth-quarter 2025.

NG3 follows the recent startup of Williams’ Louisiana Energy Gateway (LEG) pipeline, which began first flows in late July. Together, the two systems represent a significant expansion in Haynesville takeaway capacity amid rising Gulf Coast LNG demand.

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According to Wood Mackenzie, the early startup “is a meaningful milestone” even though current throughput remains below the pipeline’s full capacity. Most gas volumes are being delivered to the TC Louisiana Intrastate Pipeline, while testing continues at Transco and Cameron Interstate interconnects. Additional tie-ins with Creole Trail and TETCO are expected in the coming months.

“With roughly 3.5 Bcfd of new Haynesville takeaway capacity entering service in 2025 via LEG and NG3, producers in the basin are well positioned to ramp up output — particularly as LNG export demand continues to climb,” Wood Mackenzie said in its analysis.

Looking ahead, the next phase of Haynesville expansion is expected from the LEAP Wellhead-to-Water Phase 4 project, adding another 200 MMcf/d of capacity by mid-2026.