US$450M Commonwealth Edison Co.'s Public Offering of First Mortgage Bonds

Winston & Strawn represented joint book-running managers BNP Paribas, BofA Securities, US Bancorp, and Wells Fargo Securities, as underwriters' counsel, in connection with the registered public offering of US$450M of First Mortgage 2.750% Bonds, Series 131 due 2051 by Commonwealth Edison Co.