Morgan Stanley & Co. Incorporated, Barclays Capital Inc., Citigroup Global Markets Inc. and UBS Securities LLC acted as joint book-running managers of the offering. Credit Suisse Securities (USA) LLC, Goldman, Sachs & Co. and Raymond James & Associates, Inc. acted as co-managing underwriters of the offering. A copy of the final prospectus supplement and accompanying base prospectus relating to the offering may be obtained from any of the underwriters, including:

Morgan Stanley & Co. Incorporated
Attn: Prospectus Department
180 Varick Street, 2nd Floor
New York, NY 10014
Email: prospectus@morganstanley.com
Telephone: 866-718-1649

Barclays Capital Inc.
c/o Broadridge, Integrated Distribution Services
1155 Long Island Avenue
Edgewood, NY 11717
Email: Barclaysprospectus@broadridge.com
Telephone: 888-603-5847

Citigroup Global Markets Inc.
Attn: Prospectus Department
Brooklyn Army Terminal
140 58th Street, 8th Floor
Brooklyn, NY 11220
Email: batprospectusdept@citi.com
Telephone: 800-831-9146

UBS Securities LLC
Attn: Prospectus Dept.
299 Park Avenue
New York, NY 10171
Telephone: 888-827-7275

You may also obtain these documents for free when they are available by visiting IDEA on the Securities and Exchange Commission's (SEC) Web site at www.sec.gov.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. The offering may be made only by means of a prospectus and related prospectus supplement meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

El Paso Pipeline Partners is a Delaware limited partnership formed by El Paso Corporation to own and operate natural gas transportation pipelines and storage assets. El Paso Pipeline Partners owns Wyoming Interstate Company, an interstate pipeline system serving the Rocky Mountain region, a 40 percent general partner interest in Colorado Interstate Gas Company, which operates in the Rocky Mountain region, and a 25 percent general partner interest in Southern Natural Gas Company, which operates in the southeastern region of the United States. For more information about El Paso Pipeline Partners, visit www.eppipelinepartners.com.

Cautionary Statement Regarding Forward-Looking Statements

Statements about the offering may be forward-looking statements as defined under federal law. These forward-looking statements rely on a number of assumptions concerning future events and are subject to a number of uncertainties and factors, many of which are outside the control of El Paso Pipeline Partners, and a variety of risks that could cause results to differ materially from those expected by the management of El Paso Pipeline Partners. El Paso Pipeline Partners undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time.

Note to Non-United States Investors

This release is intended to be a qualified notice under Treasury Regulation Section 1.1446-4(b). Brokers and nominees should treat one hundred percent of El Paso Pipeline Partners' distributions to foreign investors as being attributable to income that is effectively connected with a United States trade or business. Accordingly, El Paso Pipeline Partners' distributions to Non-United States investors are subject to federal income tax withholding at the highest applicable effective tax rate.

Contact:
Contacts:
Investor & Media Relations
Bruce L. Connery
Vice PresidentOffice:
(713) 420-5855