X0306 4 2017-05-09 0001111711 NISOURCE INC/DE NI 0001017659 ABDOO RICHARD A 801 E 86TH AVENUE MERRILLVILLE IN 46410-6272 1 Common Stock 2017-05-09 4 A 0 5394.191 24.10 A 50725.318 D Phantom Stock 0 Common Stock 23031.619 23031.619 D Represents restricted stock units granted as part of non-employee director's compensation. The reported phantom stock units were acquired under the NiSource Inc. 2010 Omnibus Incentive Plan and are to be settled upon the reporting person's retirement or other termination of service. /s/ Samuel K. Lee, Attorney-in-Fact for Richard A. Abdoo 2017-05-11