Abstract
In the article there are discribed history of becoming and detailed characteristic of PRMS-SPE, as one of the leading international systems of hydrocarbons supplies and resources evaluation. Leading principles of this classification system touch liquid, gaseous and hard carbohydrates, oriented to the real projects and used both for traditional and for untraditional resources. Categories and classes of hydrocarbons resources in the system PRMS-SPE are distinguished after the degree of deposit studying (to authenticity), expected economic effect from their explore and real well number, accordingly taken into account not only probability of, that hydrocarbons physically are in a geological structure but also economic efficiency of their supplies exception. It is set that National classification of Ukraine and PRMS-SPE are marked a considerable cognation in basic principles and going near the selection of categories and groups of oil and gas supplies/resources As for the, made by authors, algorithm of comparison it can be used for development and further approbation of normatively-methodical materials from harmonization of classifications.