Past seismic stratigraphic exploration capabilities, which found large amounts of oil with crude tools from 1938 to 1962, are illustrated with three additional case histories covering a contribution to the discovery of the only super‐giant reef‐type oil field in the United States, the discovery of a thin sand pinchout reservoir along a strand line, and an exploration method for the delineation of a barrier reef complex and the overlying compaction fold complex. Present and future seismic stratigraphic exploration capabilities will be presented in Part III in the August, 1971 issue of Geophysics.