Natural Gas Services Group, Inc. revenue for the last year amounted to 156.74 M USD, the most of which — 144.24 M USD — came from its highest performing source at the moment, Rental, the year earlier bringing 106.16 M USD. The greatest contribution to the revenue figure was made by United States — last year it brought Natural Gas Services Group, Inc. 156.74 M USD, and the year before that — 121.17 M USD.