CHINA OILFIELD SERVICES revenue for the last year amounted to 48.30 B CNY, the most of which — 27.66 B CNY — came from its highest performing source at the moment, Oilfield Technical Services, the year earlier bringing 25.76 B CNY. The greatest contribution to the revenue figure was made by China — last year it brought CHINA OILFIELD SERVICES 37.42 B CNY, and the year before that — 34.64 B CNY.