OTTO ENERGY LTD. revenue for the last year amounted to 19.01 M EUR, the most of which — 16.86 M EUR — came from its highest performing source at the moment, Oil, the year earlier bringing 26.56 M EUR. The greatest contribution to the revenue figure was made by United States — last year it brought OTTO ENERGY LTD. 19.34 M EUR, and the year before that — 30.35 M EUR.