Increased sulfur content, condensation, and amount of vanadium (V > Ni) observed in real crude oil systems are explained from the standpoint of formation of abiogenous constituents of crude oil systems, which is a part of the overall process of oxidative transformations of endogenous fluids as they move toward the earth's surface and is caused by oxidative dehydrocondensation effect on the hydrocarbon component of elemental sulfur S 0 present in the fluids. These mechanisms arise from oxidation of deep-earth (plutonic) hydrogen sulfide to S 0 and SO − 2 4 due to intensification of oxidative conditions in the process of ascending movement of the fluid and acceleration of oxidative processes by vanadium present in the system.Whatever the views on the sources and ways of formation of the hydrocarbon component of crude oil systems, for an understanding of the processes that gave rise to crude oils it is essential to clarify how the observed association of elements was formed and what the reasons are for the appearance in crude oils of heteroatoms, primarily sulfur and metals (V, Ni, etc.). Are these heteroelements "sputniks" (associates) of the hydrocarbon system, which made their way into the system in varying quantities at some stage of its origin and imparted to it some specific features but not determined such important characteristics as the degree of condensation and fractional composition of the crude oil, or did they take active part in the crude oil formation process from its earliest stages and did their action bear a deterministic character?The latter is supported by a multitude of data showing stable direct correlations between concentrations of heteroelements, dominant among them being primarily S, V, and Ni, relative quantity of V (V/Ni), concentrations of aromatic and asphalt-and resin-bearing structures, and viscosity and density values [1]. Worthy of special note is the combination of high sulfur and vanadium concentrations in heavy sulfur-bearing oils, malthas (viscid bitumens), asphalts, and black shales [2].Furthermore, a direct relationship is observed between sulfur-bearing oils and their reserves in several countries and continents and within the boundaries of a single oil-bearing region (West Siberia) [3]. To this must