X0306 4 2015-01-29 0001111711 NISOURCE INC/DE NI 0001361676 Campbell Robert Dale 801 E 86TH AVENUE MERRILLVILLE IN 46410-6272 1 Senior VP, Human Resources Common Stock 2015-01-29 4 A 0 10302 43.68 A 118990.4463 D Common Stock 9776.1504 I 401(k) Plan Constitutes restricted stock units granted on January 29, 2015. All of these units are scheduled to vest three years from the date of grant. Constitutes shares acquired through the NiSource Inc. Retirement Savings Plan through January 30, 2015. Samuel K. Lee, attorney-in-fact for Robert D. Campbell 2015-02-02