6/30/2005 TYG

Tortoise Energy Capital Corporation Announces Closing of Underwriters\' Over-Allotment Option

Thursday, June 30, 2005 (Overland Park, KS) - Tortoise Energy Capital Corporation (NYSE: TYY) announced today that it issued an additional 1,250,000 shares of its common stock as a result of the underwriters exercising a portion of the over-allotment option granted to them in connection with TYY's May 2005 initial public offering of common stock. As a result, an aggregate of 15,250,000 shares of common stock have been issued in connection with this offering. All shares were issued at $25.00 per share, resulting in total net proceeds to the company, after payment of underwriting discounts and offering expenses, of approximately $364 million. TYY's May 2005 offering was managed by Lehman Brothers and Stifel, Nicolaus & Company, Incorporated as joint book-running managers, and, together with Wachovia Capital Markets, LLC, acted as joint lead managers for the offering.

A copy of the final Prospectus relating to this offering may be obtained from the offices of Lehman Brothers Inc., c/o ADP Financial Services, Integrated Distribution Services, 1155 Long Island Avenue, Edgewood, New York, 11717; Stifel, Nicolaus & Company, Incorporated, 501 North Broadway, St. Louis, Missouri, 63102; and Wachovia Capital Markets, LLC, 301 South College Street, Charlotte, North Carolina, 28258.

About Tortoise Capital

Tortoise Energy Capital Corporation's investment objective is to obtain a high level of total return with an emphasis on current distributions paid to stockholders. Tortoise Capital provides financing primarily for master limited partnerships and their affiliates in the energy infrastructure sector which engage in the business of gathering, transporting, processing, storing, distributing or marketing natural gas, natural gas liquids, coal, crude oil, refined petroleum products or other natural resources, or exploring, developing, managing or producing such commodities.

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: Tortoise Capital Advisors, L.L.C. Investor Relations, 913-981-1020 www.tortoiseadvisors.com