Project Summary

Tennessee Gas Pipeline Company (“Tennessee”), a subsidiary of El Paso Corporation, plans to expand its 300 Line to transport new diversified natural gas supplies, including newly accessed shale gas in Pennsylvania, to serve the growing demand for interstate natural gas transmission service in the northeastern United States. The 300 Line Expansion Project would involve the installation of looping segments totaling approximately 125 miles of 30-inch pipeline, the addition of compression at four existing compressor stations in Pennsylvania and New Jersey, and the construction of two new compressor stations in northwestern Pennsylvania.

Upon completion, Tennessee expects the project would increase natural gas delivery capacity in the region by approximately 300,000 dekatherms per day. The project would provide 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.

Tennessee is holding an “open season,” a process that allows potential customers to indicate their interest in the project. The scope of this project may be further refined, depending upon the results of the open season. The open season ends August 1.

To minimize impacts from construction, the planned pipeline route would generally follow an existing Tennessee pipeline corridor wherever practicable. Tennessee expects its construction efforts will meet or exceed all applicable local, state, and federal regulatory safety requirements and environmental regulations.

Tennessee currently contemplates requesting approval of the project from the Federal Energy Regulatory Commission in May 2009. Tennessee expects to construct the project in two phases.

Following receipt of all applicable approvals, construction may begin as early as July 2010, so that the initial phase of the project will be placed in service in November 2010. The second phase is planned to be in service by November 2011. Tennessee expects its outreach efforts will continue through construction of the project.

Tennessee has been serving the northeastern United States for more than fifty years. The success of this project will continue to build upon Tennessee’s long tradition of providing reliable energy service to the region. The 300 Line Expansion Project would support Tennessee’s commitment to serve growing markets with safe and reliable deliveries of natural gas.

El Paso Corporation provides natural gas and related energy products in a safe, efficient, and dependable manner. El Paso owns North America’s largest natural gas pipeline system and one of North America’s largest independent natural gas producers.

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