HOUSTON, TX, Jun 23, 2008 (MARKET WIRE via COMTEX News Network) -- Southern Natural Gas Company (SNG), a majority owned subsidiary of El Paso Corporation (NYSE: EP), announced the expiration and final results of its previously announced cash tender offer to purchase up to $189 million aggregate principal amount (the Tender Cap) of its 7.35% Notes due February 15, 2031(CUSIP No. 843452AY9) (the 7.35% Notes) and 8.0% Notes due March 1, 2032 (CUSIP No. 843452AZ6) (the 8.0% Notes). The tender offer expired at 12 midnight, Eastern Time, on June 20, 2008. $146,720,000 in aggregate principal amount of 7.35% Notes and $54,713,000 in aggregate principal amount of 8.0% Notes were validly tendered in the tender offer. Because the aggregate principal amount of 8.0% Notes tendered exceeded the amount of the Tender Cap remaining available for application to such series, the amount of 8.0% Notes accepted for purchase was prorated among tendering holders in accordance with the terms of the Offer to Purchase dated May 23, 2008. The proration factor applied was approximately 77.3-percent (rounded down to the nearest $1,000 of principal amount for each tendering holder). SNG expects settlement of the tender offer to occur today.

Merrill Lynch & Co. and J.P. Morgan Securities Inc. served as the dealer managers for the tender offer and Global Bondholders Services Corporation served as the depositary and information agent for the tender offer.

SNG is a Delaware general partnership, originally formed as a corporation in 1935. SNG is owned 90 percent by a wholly owned subsidiary of El Paso Corporation (El Paso) and 10 percent by a wholly owned subsidiary of El Paso Pipeline Partners, L.P. (NYSE: EPB). SNG's primary business consists of the interstate transportation and storage of natural gas. SNG conducts its business activities through its Southern Natural Gas pipeline system and related storage facilities.

El Paso Corporation provides natural gas and related energy products in a safe, efficient, dependable manner. El Paso Corporation 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 http://www.elpaso.com.

Cautionary Statement Regarding Forward-Looking Statements

This release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All forward-looking statements are based on assumptions that SNG believes to be reasonable. However, actual results almost always vary from assumed facts and the differences can be material, depending upon the circumstances. As a result, you should not place undue reliance on such forward-looking statements. The words believe, expect, estimate, anticipate and similar expressions will generally identify forward-looking statements. All of SNG's forward-looking statements, whether written or oral, are expressly qualified by these cautionary statements and any other cautionary statements that may accompany such forward-looking statements. In addition, SNG disclaims any obligation to update any forward-looking statements to reflect events or circumstances after the date of this release.

With this in mind, you should consider the risks discussed in the Offer to Purchase, under the caption Risk Factors in SNG's Annual and Quarterly Reports on Forms 10-K and 10-Q and in the other documents SNG files with the SEC from time to time, which could cause actual results to differ materially from those expressed in any forward-looking statement made by SNG or on SNG's behalf.

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Bruce L. Connery
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Bill Baerg
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