OTTO ENERGY LTD. revenue for the last year amounted to 30.62 M EUR, the most of which — 26.56 M EUR — came from its highest performing source at the moment, Oil, the year earlier bringing 33.44 M EUR. The greatest contribution to the revenue figure was made by United States — last year it brought OTTO ENERGY LTD. 30.35 M EUR, and the year before that — 36.82 M EUR.