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Williams gets FERC approval for Transco natural gas pipeline expansion

Williams Partners LP received US Federal Energy Regulatory Commission approval for its proposal to expand its Transco natural gas pipeline by 225 MMcfd to serve the Southeast US. The Mid-South Expansion project will provide service on Transco to the City of LaGrange, Ga., Progress Energy Carolinas Inc., and Southern Company Services Inc.

The expansion will include 23 miles of new pipeline, a new compressor facility in Dallas County, Ala., and upgrades to existing compressor facilities in Alabama, Georgia, South Carolina, and North Carolina. Williams will complete the project in two phases: 95,000 MMcfd entering service in fourth-quarter 2012 and 130,000 MMcfd service second-quarter 2013.

Williams estimates the capital cost of the project at $217 million.

In February, Williams requested FERC initiate a pre-filing environmental review of its Northeast Supply Link Expansion, designed to provide 420 MMcfd firm transportation service on the Transco line from interconnections accessing Marcellus shale production along its Leidy line in Pennsylvania to its Station 210 pooling point and existing New York City delivery points. Subject to regulatory approval, Williams expects this expansion to be in full service by November 2013 (OGJ Online, Mar. 5, 2010).

Contact Christopher E. Smith at

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