Early discoveries of hydrocarbon traps were geological structures. The success rate of finding hydrocarbon by drilling structures was about 10%. This suggested looking for other means of seismic interpretation for possible direct hydrocarbon identification (DHI). Russian literature reported use of seismic amplitudes in early fifties. Attempts of using integrated seismic traces from shot gathers were made as early as in sixties (Savit in Geophysics, 1960). However, the use of relatively strong seismic amplitudes or so-called bright spots as DHIs for gas prospects from the 1960s onwards resulted in many dry wells, as there are other geological causes of the amplitude anomalies. See Ojo and Sindiku (Limitations in the use of DHI’s in hydrocarbon prediction—Case histories of some dry/semi dry wells in clastic rocks in the Niger Delta of Nigeria, 2006) for recent DHI failures. See also Simm (2020) for a discussion of seismic amplitude supported DHI and possible failures even in the highly drillable prospects in the N Sea.