CHINA OILFIELD SVCS H YC1 revenue for the last year amounted to 5.63 B EUR, the most of which — 3.30 B EUR — came from its highest performing source at the moment, Oilfield Technical Services, the year earlier bringing 2.73 B EUR. The greatest contribution to the revenue figure was made by China — last year it brought CHINA OILFIELD SVCS H YC1 4.44 B EUR, and the year before that — 4.09 B EUR.