A professional who supervises and coordinates activities of oil field workers operating equipment, such as compressors, boilers, pumps, and dehydration vessels, to remove sediment and water from crude oil, extract natural gas, and separate natural gasoline from gas by means of heat, pressure, and chemical action.

• Orders flow cycles, pressures, and temperatures of petroleum to be maintained according to process involved and properties of petroleum being processed.
• Performs other duties as described under supervisor master title.