UNDISCOVERED CONVENTIONAL ACCUMULATIONS


     Undiscovered conventional accumulations of oil and gas are the
traditional fare of the oil and gas industry and have been the focus 
of most previous USGS oil and gas assessments. These resources include
those postulated to exist outside known fields or accumulations, and
that, if found, could be extracted using traditional development practices. 
These accumulations generally exist as discrete accumulations, which are 
usually, but not invariably, defined, controlled, or limited by hydrocarbon/water 
contacts. Undiscovered accumulations are shown in the right third of the 
McKelvey box (fig. 4). Undiscovered technically recoverable  accumulations, 
those assessed in this report, are within the hachured area shown on figure 4.