A process using Nuclear Magnetic Resonance (NMR) with pre-determined oil specimens at the earth's surface by which to match the location and lateral boundaries of any and every producible oil reservoir responsive to NMR technology, to provide estimates to useable industry standards of porosity and permeability of said reservoirs for exploration purposes by NMR, to detect and identify depth and direction of faults in any given oil area by NMR, to provide mapping of surveyed areas prior to drilling either offset or wildcat ventures resulting from NMR testing, to evaluate reservoir and production potential in existing oil fields by NMR, to detect the existence of natural gas by NMR, and the ability to condemn any proposed drilling location in view of failure.