A unit of Williams Cos. Inc. said Friday it has executed precedent agreements for a proposed Transcontinental Gas Pipe Line Co. (Transco) expansion to provide an additional 142,000 Dth of incremental firm natural gas transportation capacity to serve growing markets in the Mid-Atlantic region by November 2012.

Williams held an open season last summer for the expansion (see Daily GPI, July 15, 2009).

The Mid-Atlantic Connector expansion would provide service on Transco from an interconnection with East Tennessee Natural Gas in Rockingham County, NC, to delivery points as far north as Maryland. Other supply points in the path of the project include interconnects with Columbia Gas Transmission, Dominion Transmission and Dominion Cove Point.

“This project demonstrates how our Transco pipeline is well positioned to serve its customers’ growing needs…while providing access to a diverse mix of supply sources,” said Phil Wright, president of Williams’ natural gas pipeline business.

Subject to approval by the Federal Energy Regulatory Commission and other agencies, the expansion would consist of about three miles of pipeline looping and upgrades to existing compressor facilities in Virginia. Total costs are estimated at $55 million.

©Copyright 2010Intelligence Press Inc. All rights reserved. The preceding news reportmay not be republished or redistributed, in whole or in part, in anyform, without prior written consent of Intelligence Press, Inc.