NORTHERN ILLINOIS GAS COMPANY $50,000,000 FIRST MORTGAGE BONDS 5.37% SERIES DUE FEBRUARY 1, 2009 UNDERWRITING AGREEMENT January 28, 1999 Salomon Smith Barney Inc. 7 World Trade Center New York, New York 10048 Dear Sirs: Northern Illinois Gas Company,...Northern Illinois Gas Co /Il/ /New/ • March 19th, 1999 • Natural gas transmission
