Profile: E & h Mfg., Inc. produces pumpjacks, separators & tanks and distributes them through the existing network of oilfield supply stores. We have a second plant facility where we specialize in timber bridges & heavy duty concrete liners. Our storage tanks can be manufactured to API (American Petroleum Institute) specifications. We build steel storage tanks which include standard oilfield storage tanks, frac tanks and vacuum tanks, fuel tanks, mixing tanks & water tanks. We also build desiccant dryers, coalescing filters and scrubbers.