Profile: Shields, Harper & Co is a petroleum equipment distributor & petroleum marketing systems integrator. Our products and services include tanks, dispensers, nozzles, valves and fittings. We specialize in the integration and application of fueling systems, fuel handling equipment, fuel marketing solutions, petroleum equipment and service station equipment. We stock petroleum marketing equipment for gasoline, diesel, fuel oil and gas tanks. We also carry valves, meters, gauges, nozzles, hose and hose reels. We provide CAD drawings for major projects and start-up service for electronic systems.