FIRSTENERGY CORP COM STK USD0.10 revenue for the last year amounted to 12.90 B USD, the most of which — 10.81 B USD — came from its highest performing source at the moment, Regulated Distribution, the year earlier bringing 10.57 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought FIRSTENERGY CORP COM STK USD0.10 12.87 B USD, and the year before that — 12.46 B USD.