Profile: Geophysical Research Company, LLC provides gauges and surface readout tools for permanent, memory, & artificial lift applications. We specialize in down hole data acquisition. Our Amerada® mechanical gauge is used in the oil and gas industry. We manufacture gauges to measure pressure and temperature at the bottom of an oil/gas well. Well pressure is the parameter to determine oil reserves, production rates, financial commitment, and the life of the well. We also produce a complete line of pressure gauges. We provide surface well head gauges for measuring well head pressure.