GMPSCO is an innovate petroleum services & general supply company serve all oil, gas, energy & industrial market. GMPSCO Provides: (1) Downhole Oil Tools. - GMPSCO is an agent of Evolution Oil Tool For Downhole Oil Tools. (2) Pressure & Temperature Instrumentation. - GMPSCO is a distributor of PALMER Wahl Instrumentation Group for Pressure & Temperature Instrumentation. (3) Safety Products & Personal Protective Equipment. - GMPSCO is an agent of PYRAMEX Safety for Safety Products & Personal Protective Equipment.