HOUSTON, June 20, 2005 /PRNewswire-FirstCall via COMTEX/ -- ANR Pipeline Company (ANR), a subsidiary of El Paso Corporation (NYSE: EP), announced today a non-binding open season for its Wisconsin/Illinois 2007 pipeline project, which will increase capacity on its natural gas pipeline system in Wisconsin and northern Illinois.

The open season begins June 20, 2005 and will end on July 21, 2005. The proposed project will add incremental capacity from ANR's Joliet Hub near Chicago to existing or new points of delivery along ANR's pipeline system in Wisconsin and Northern Illinois. ANR will use the results of the open season to determine the project's final design. The projected in-service date is November 2007.

The Wisconsin/Illinois 2007 open season follows successful open seasons by ANR for capacity additions in 2004, 2005, and 2006, which all resulted in expansion projects to meet Wisconsin's growing natural gas requirements.

For more information or to request an open season packet, please contact Mr. Lynn Cannon at 262-792-5405 or lynn.cannon@elpaso.com .

ANR Pipeline Company operates more than 10,500 miles of interstate natural gas pipeline and more than 230 billion cubic feet of storage fields, providing transportation, storage, and capacity-related services to customers in the United States and Canada.

El Paso Corporation provides natural gas and related energy products in a safe, efficient, and dependable manner. The company owns North America's largest natural gas pipeline system and one of North America's largest independent natural gas producers. For more information, visit http://www.elpaso.com .

Cautionary Statement Regarding Forward-Looking Statements

This release includes forward-looking statements and projections, made in reliance on the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. 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 successfully construct and operate the proposed facilities described in this release; 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; the uncertainties associated with governmental regulation; competition, 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.

SOURCE El Paso Corporation

Investor and Public Relations, Bruce L. Connery, Vice President, 1-713-420-5855
or
Media Relations, Aaron Woods, Manager, 1-713-420-6828
Both of El Paso Corporation

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