A professional who supervises and coordinates activities of workers engaged in sampling and testing natural gas, and controlling processing equipment at oil field installations. Respnsibilities include:

• Directs workers in inspection of storage tanks, regulators, traps, and dehydration plants.
• Orders sample taking and field testing to determine specific gravity, vapor and hydrocarbon content, and other properties of gas and to verify suitability of boiler water used in gas processing equipment.
• Confers with workers to resolve operational problems.
• Revises field maps to show locations of gas processing and control equipment.
• Trains new workers.
• Performs other duties as described under supervisor master title.