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Columbia’s 1.3 Bcf/d WB XPress Enters Full Service

TransCanada Corp. said Thursday the remainder of the Columbia Gas Transmission LLC (TCO) WB XPress project has entered service, allowing another 1.3 Bcf/d of Appalachian natural gas to move to Mid-Atlantic markets.

FERC on Wednesday authorized service to start on the Eastern Build of WB XPress following its approval last month of the project’s Western Build. The Eastern Build spans various counties in West Virginia and Virginia, and is designed to move 500 MMcf/d. This portion of the project included the construction of a compressor station in Virginia, along with associated pipeline and facilities.

The Western Build was brought online last month, unleashing 760 MMcf/d for transport to a point on Tennessee Gas Pipeline’s Broad Run System for delivery to the Gulf Coast. That part of the project included a compressor station in West Virginia and associated pipeline and facilities.

Overall, the $900 million system includes the two new compressor stations, 30 miles of pipeline looping and modifications to seven existing compressor stations to expand the TCO system.

The project is the latest in a wave of Appalachian infrastructure to enter service this year, including the Atlantic Sunrise and Nexus Gas Transmission pipelines that came online last month. In a recent note to clients,  analysts at ClearView Energy Partners LLC estimated that 11 Bcf/d of new Appalachian gas takeaway capacity has entered or will enter service this year. Another 5 Bcf/d is expected to come online in 2019, ClearView said.

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