NOV INC. DL-,01 revenue for the last year amounted to 7.78 B EUR, the most of which — 2.87 B EUR — came from its highest performing source at the moment, Wellbore Technologies, the year earlier bringing 2.59 B EUR. The greatest contribution to the revenue figure was made by United States — last year it brought NOV INC. DL-,01 2.66 B EUR, and the year before that — 2.43 B EUR.