Exhibit 4.4 This instrument was prepared by, and when recorded should be returned to: Richard W. Astle Sidley Austin Brown & Wood Bank One Plaza 10 South Dearborn Street Chicago, Illinois 60603 Supplemental Indenture Dated as of March 14, 2003...Supplemental Indenture • April 7th, 2003 • Commonwealth Edison Co • Electric services
Exhibit 1.1 Commonwealth Edison Company First Mortgage 4.70% Bonds, Series 101, due 2015 UNDERWRITING AGREEMENTUnderwriting Agreement • April 7th, 2003 • Commonwealth Edison Co • Electric services • New York
