HOUSTON, TX–(EMWNews – August 5, 2008) – Tennessee Gas Pipeline Company (“Tennessee”), a

wholly owned subsidiary of El Paso Corporation (NYSE: EP), today announced

the results of a binding open season for its 300 Line Expansion Project.

Equitable Energy LLC, a subsidiary of Equitable Energy (NYSE: EQT),

executed a binding precedent agreement for a 15-year term and was awarded

300,000 Dth/d, which represents 100 percent of the project’s capacity. The

project links Equitable’s Appalachian production to northeast markets. The

expansion facilities will consist of approximately 125 miles of 30-inch

pipe loop and approximately 46,000 horsepower of additional compression

facilities to be constructed in Tennessee’s existing pipeline corridor in

Pennsylvania and New Jersey. Tennessee has entered into a fixed price

agreement to lock in its pipe costs.

“We’re excited to have Equitable, a major gas producer in the Appalachian

basin, become one of the largest shippers on our system,” said Bryan

Neskora, Chief Commercial Officer of Tennessee. “This project strengthens

Tennessee’s position in the Northeast with diversified supplies and a

significant increase in capacity to serve this region.”

“Equitable’s participation in this project exemplifies our commitment to

support the expansion of much needed pipeline capacity out of the

Appalachian Basin,” said Randall Crawford Senior Vice President of

Equitable Resources. “The project enables Equitable to deliver more of our

produced gas to the highly valued Northeast markets.”

Construction of the project is subject to regulatory approval from the

Federal Energy Regulatory Commission (“FERC”) and other agencies.

Tennessee plans to file its certificate application with the FERC during

the second quarter of 2009, with phased construction anticipated during

2010 and 2011, pending receipt of the necessary regulatory approvals for

the project.

For more information on the 300 Line Expansion Project, visit project web

site at www.elpaso.com/tgp300lineexpansion/default.shtm.

El Paso Corporation provides natural gas and related energy products in a

safe, efficient, and dependable manner. The company owns North America’s

largest interstate natural gas pipeline system and one of North America’s

largest independent natural gas producers. For more information, visit

www.elpaso.com.

Note to Editors: A map of the project can be accessed at

www.elpaso.com/tgp300lineexpansion/images/Line_300_Map.jpg.

Cautionary Statement Regarding Forward-Looking Statements

This release includes forward-looking statements and projections. The

company has made every reasonable effort to ensure that the information and

assumptions on which these statements and projections are based are

current, reasonable, and complete. However, a variety of factors could

cause actual results to differ materially from the projections, anticipated

results or other expectations expressed in this release, including, without

limitation, our ability to obtain all necessary federal, state and local

regulatory approvals; our ability to successfully construct and operate the

proposed facilities described in this release on time and within budget;

creditworthiness of our shippers; the successful close of our financing

transactions; general economic conditions in geographic regions or markets

served by El Paso Corporation and its affiliates, or where operations of

the company and its affiliates are located, and other factors described in

the company’s (and its affiliates’) Securities and Exchange Commission

filings. While the company makes these statements and projections in good

faith, neither the company nor its management can guarantee that

anticipated future results will be achieved. Reference must be made to

those filings for additional important factors that may affect actual

results. The company assumes no obligation to publicly update or revise any

forward-looking statements made herein or any other forward-looking

statements made by the company, whether as a result of new information,

future events, or otherwise.