OTTO ENERGY LIMITED revenue for the last year amounted to 50.15 M AUD, the most of which — 43.50 M AUD — came from its highest performing source at the moment, Oil, the year earlier bringing 50.79 M AUD. The greatest contribution to the revenue figure was made by United States — last year it brought OTTO ENERGY LIMITED 49.70 M AUD, and the year before that — 55.93 M AUD.