NOV Inc. revenue for the last year amounted to 8.58 B USD, the most of which — 3.17 B USD — came from its highest performing source at the moment, Wellbore Technologies, the year earlier bringing 2.78 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought NOV Inc. 2.93 B USD, and the year before that — 2.60 B USD.