The results of the geoinformation analysis of features of oils location are presented using an index of oil quality, allowing to divide the hard-to-recover oils into three classes: oil of low, medium and high quality. Features of the geographical location of hard-to-recover oils of each of the oil quality classes were identified on base of an analysis of data on 22700 samples of oils with anomalous properties and 9600 samples of oils with complicated conditions of occurrence. The main software environment of the spatial analysis of data on oil is a Geographic Information System. As a result of geoinformation analysis created three cards-schemes of allocation of oil-gas-bearing basins of different quality classes on the globe. Analysis of the schematic map shows that hard-to-recover oils of high, medium and low quality are located, respectively, in 63, 102 and 129 oil-gas-bearing basins on all continents. The results of analysis can be used to solve practical problems of the oil industry.