The geological structure of the reservoir, its physical characteristics, physical and physicochemical properties of the fluids saturating the rock are described. An analysis of the processing of data obtained during the penetration of the formation and during its subsequent operation is presented. Physical properties of oil and gas reservoir rocks are described; properties of formation fluids, gases and gas condensate mixtures; methods for their analysis, as well as correlation relationships for a number of key parameters. The manual is intended for students of the direction 21.04.01 "Oil and gas business.