NiSource Inc revenue for the last year amounted to 5.57 B USD, the most of which — 3.72 B USD — came from its highest performing source at the moment, Gas Distribution, the year earlier bringing 4.01 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought NiSource Inc 5.51 B USD, and the year before that — 5.85 B USD.