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Williams' $1B Nese Gas Pipeline Project To Add 34 Bcf/D To Us Grid Amid Surplus Concern

oil-gas
Nov 18, 2025
Article Source LogoPipeline Technology Journal
Pipeline Technology Journal

US regulators have approved key permits for Williams’ $1 billion Northeast Supply Enhancement (NESE) project, clearing the path for construction of the 34 Bcf/d pipeline. 

The NESE project, which had been previously shelved, became a symbol of the energy industry's struggle to build capacity for expected gas demand growth through the early 2030s.

Approved on Nov. 7 by the New York State Department of Environmental Conservation (DEC) and the New Jersey Department of Environmental Protection, the permits are crucial for NESE to cross waterways. 

The approvals reverse earlier denials from 2018 to 2020 and were spurred by recent concerns about potential winter gas shortages in the pipeline-constrained Northeast. 

The project aims to boost capacity on Williams’ Transcontinental Gas pipeline by 400 million cubic feet per day (MMcf/d) to serve New York City and Long Island starting in late 2027.

Williams had revived NESE in June 2025, citing renewed grid concerns and a "friendlier political and regulatory climate" following the reelection of President Donald Trump. 

New York’s Public Service Commission had also weighed in, urging the DEC to approve the project to prevent “catastrophic” gas shortages. However, the reality on the ground suggests the industry may already be headed toward a capacity surplus. 

Midstream companies have reached final investment decisions (FIDs) on more than 34 billion cubic feet per day (Bcf/d) of new pipeline capacity slated for 2026-2029, according to East Daley Analytics. 

This exceeds even the most optimistic analyst projections for gas demand growth driven by liquefied natural gas (LNG) exports and electricity generation for new data centers, which range from 18 Bcf/d to 27 Bcf/d through 2030.

“Our members report a record number of inquiries for additional capacity,” said Amy Andryszak, president and CEO of the Interstate Natural Gas Association of America.

Jack Weixel, senior director of energy analysis at East Daley, attributed the surge to easing market and political pressures, including the potential for federal permit reform that would limit state veto power.

Analysts caution that this rapid buildout could lead to temporary capacity overbuild, particularly in the Permian Basin, where 9.1 Bcf/d is planned against a projected 6 Bcf/d in production growth.

However, Luciano Di Fiori, a partner at McKinsey, noted that any overbuild would likely be temporary, citing the "virtually guaranteed demand pull" from the doubling of Gulf Coast LNG export capacity. 

Despite the NESE win, Williams withdrew a similar application for its Constitution project in New York, vowing to refile soon.

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