Williams was given the green light by FERC on Friday to move forward with its Leidy South expansion in Pennsylvania, which is designed to carry about 600 MMcf/d of natural gas capacity to Atlantic Seaboard markets.

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Williams’ Transcontinental Gas Pipe Line LLC, aka Transco, brought 125 MMcf/d of Leidy South capacity online in November, with 457 MMcf/d set to be completed this year. 

The Leidy South expansion is designed to move Appalachian Basin natural gas supply to the Atlantic Seaboard markets.

The Federal Energy Regulatory Commission said Transco could proceed with installing the Benton Loop, a 3.5-mile section of 42-inch diameter pipeline in Pennsylvania’s Lycoming and Columbia counties (No. CP19-494-000). The Hensel and Hilton loops planned by Transco for Clinton...