ONEOK INC COM STK USD0.01 revenue for the last year amounted to 17.68 B USD, the most of which — 14.43 B USD — came from its highest performing source at the moment, Natural Gas Liquids, the year earlier bringing 19.07 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought ONEOK INC COM STK USD0.01 17.68 B USD, and the year before that — 22.39 B USD.