OVERLAND PARK, Kan. – May 09, 2006 — Tortoise Energy Infrastructure Corp. (NYSE: TYG) today announced that it has filed a shelf registration statement with the U.S. Securities and Exchange Commission. When effective, the shelf registration will allow Tortoise Energy Infrastructure Corp. to issue, in one or more offerings, up to $125 million in common stock, preferred stock or debt securities of the Company as the Board of Directors shall deem to be in the best interests of the Company.

Upon effectiveness, the shelf registration will allow flexible access to capital. Additional capital would be raised when investment opportunities arise which the company believes, over the long-term, will increase both dividends and shareholder value.

A registration statement related to these securities has been filed with the Securities and Exchange Commission but has not yet become effective. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This announcement shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. You should consider the investment objectives, risks and charges and expenses of the Company before investing. This and other information about the Company will be contained in the Company's prospectus, a copy of which may be obtained from the Company when the Company prepares to sell securities under the shelf registration statement

About Tortoise Energy

Tortoise Energy Infrastructure Corp. owns a portfolio of master limited partnerships in the energy infrastructure sector. Tortoise Energy's goal is to provide its stockholders with a high level of total return with an emphasis on current distributions.

About Tortoise Capital Advisors

Tortoise Capital Advisors, LLC, the adviser to Tortoise Energy Infrastructure Corp., is a pioneer in capital markets for master limited partnership (MLP) investment companies and a leader in closed-end funds and separately managed accounts focused on MLPs in the energy infrastructure sector. Tortoise Capital Advisors also serves as the adviser to Tortoise Energy Capital Corp. (NYSE: TYY) and Tortoise North American Energy Corp (NYSE: TYN). To date, the adviser has approximately $1.7 billion of energy infrastructure investment assets under management. For more information, visit our Web site at www.tortoiseadvisors.com.

Safe Harbor Statement

This press release shall not constitute an offer to sell or a solicitation to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer or solicitation or sale would be unlawful prior to registration or qualification under the laws of such state or jurisdiction.

Contact information

Pam Kearney, Investor Relations (913) 322-5839 pkearney@tortoiseadvisors.com Tortoise Capital Advisors, LLC