The results of experimental application of frequency-resonance method of the remote sensing (RS) data processing and interpretation and geoelectric methods of forming short-pulsed electromagnetic field (FSPEF) and vertical electricresonance sounding (VERS) for the hydrocarbon (HC) accumulations prospecting in unconventional reservoirs (shale, and coal-bearing crystalline rocks, tight sandstones, etc.) are analyzed. It is shown that the method of remote sensing data processing allow to detect and map operatively the anomalies of «reservoir of gas (oil)» type in collectors of various types. These anomalies may be connected with «sweet spots» areas, within which there is a high likelihood of industrial inflow of hydrocarbon receiving. The anomalies of «reservoir of gas (oil)» type can also be detected and mapped by the areal FSPEF method survey. The bedding depths and thicknesses of the anomalous polarized layers (APL) of «gas (oil)» type are determined by VERS sounding. Practical application of the mobile technologies at different stages of hydrocarbon accumulations prospecting in various types reservoirs will accelerate and optimize the exploration process in general and significantly reduce the number of prospecting, exploration and production wells.