Tennessee Gas ‘300 Line’ Pipeline Now Complete & Flowing

Tennessee Gas Pipeline Company finished its "300 Line" project Tuesday and started natural gas flowing through the new pipes. The expanded pipeline is an important part of the delivery infrastructure for moving Marcellus Shale gas to market in the northeastern U.S.

El Paso Corporation today announced that its wholly owned subsidiary, Tennessee Gas Pipeline Company, L.L.C. (TGP), has placed its 300 Line Project in service, marking the completion of one of the largest natural gas infrastructure projects currently under way in the Northeast United States.

The upgrade provides access to both new and existing natural gas supplies and increases capacity on the TGP system by 350,000 dekatherms per day (Dth/d). Cost of the project was about $0.7 billion. All of the project capacity is contracted under a long-term firm transportation agreement with EQT Energy, LLC.

"The 300 Line Project provides significant new capacity to safely and reliably ship natural gas from prolific natural gas basins along TGP to markets in the Northeast," said Norman G. Holmes, president of TGP and Southern Natural Gas Company, L.L.C. "The TGP system is a key conduit for Marcellus Shale gas and other diverse supplies into Northeast and New England markets. TGP is investing about $1.3 billion in four new Northeast projects that will increase capacity on the TGP system by an additional 1.5 Bcf/d, primarily from the Marcellus Shale. The 300 Line Project is the first of these, and plans call for the others to be placed in service in 2012 and 2013, subject to receipt of regulatory approvals."

The 300 Line Project included the installation of eight looping segments in Pennsylvania and New Jersey, totaling approximately 127 miles of 30-inch diameter pipeline, and the addition of approximately 55,000 horsepower through the installation of two new compressor stations and upgrades at seven existing compressor stations.

The project provides access to diversified natural gas supplies from Gulf Coast, Appalachian, Rockies, and Marcellus Shale supply areas, and gas deliveries to points along the 300 Line path and into various interconnections with other pipelines in northern New Jersey, as well as an existing delivery point in White Plains, New York.*

*El Paso Corporation Press Release/MarketWatch (Nov 1, 2011) – Tennessee Gas Pipeline Places 300 Line Project in Service