A professional who sells and rents oil field supplies, machinery, equipment, and oil well services, such as directional drilling, electrical well logging, well fishing (recovering equipment from well bottoms), perforating, and temperature and pressure surveying, performing duties as described under sales representative Master Title. Respnsibilities include:

• May interpret graphs and survey data for customer.
• May be designated according to type of sales as Sales Representative, Oil Field Supplies; Sales Representative, Oil-Well Equipment Rentals; Sales Representative, Oil-Well Services.