TORTOISE ENERGY INFRASTRUCTURE CORPORATION (a Maryland Corporation) 1,100,000 Shares of Common Stock Par Value $.001 Per Share UNDERWRITING AGREEMENT September 25, 2008Underwriting Agreement • September 26th, 2008 • Tortoise Energy Infrastructure Corp • New York
Stifel, Nicolaus & Company, Incorporated Oppenheimer & Co. Inc. RBC Capital Markets as Representatives of the several Underwriters c/o Stifel, Nicolaus & Company, Incorporated One South Street, 15th Floor Baltimore, Maryland 21202
