OTTO ENERGY LIMITED revenue for the last year amounted to 30.55 M AUD, the most of which — 27.09 M AUD — came from its highest performing source at the moment, Oil, the year earlier bringing 43.50 M AUD. The greatest contribution to the revenue figure was made by United States — last year it brought OTTO ENERGY LIMITED 31.08 M AUD, and the year before that — 49.70 M AUD.