Developers offer construction plans for overlapping Southeast pipelines

By Carlos Anchondo | 02/20/2026 06:27 AM EST

New FERC filings show that two pipelines aim to start building along the same 30-mile stretch in March.

The Transcontinental Gas Pipe Line Company natural gas pipeline, a network of 10,000 miles of pipeline stretching from South Texas to New York City, is seen in South Amboy, N.J., at Raritan Bay on Monday, Nov. 17, 2025. (AP Photo/Ted Shaffrey)

Two developers plan to build about 30 miles of pipe along Williams Cos.’ Transco gas pipeline system. AP

Developers of two pipeline projects itching to supply Southeast markets with natural gas are working to get construction underway as soon as next month, according to filings this week.

The projects, proposed separately by Williams Cos. and Mountain Valley Pipeline, involve laying new pipe in the same stretches of southern Virginia and North Carolina. The Federal Energy Regulatory Commission has signed off on both pipelines — and this week, Williams asked for permission to move ahead with construction, while Mountain Valley Pipeline filed a construction timeline.

The projects initially raised concerns about redundancy, with Williams saying its project could be modified to handle all planned volumes of natural gas. But FERC has said both developers demonstrated need, as electricity demand across the U.S. is anticipated to increase. FERC Chair Laura Swett has emphasized the need for oil and gas, calling pipelines the “backbone” of America at Energy Dialogues’ North American Gas Forum in December.

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FERC green-lighted Williams’ Southeast Supply Enhancement project in January. The project is an expansion of the existing Transco natural gas transmission system.

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