Transportation of oil and petroleum products, their consumption and discharge into the environment of petroleum wastes lead to pollution and degradation of agricultural soils, contributing to a decrease in their fertility. Oil pollution causes disturbances in the morphological, physical, physico-chemical and biological properties of the soil. The influence of oil on the water-physical properties of agricultural soddy podzolic soil of loamy granulometric composition was investigated in a long-term field experiment. Oil pollution caused a decrease in soil moisture and specific density at doses of oil of 4 L/m2 or more during the first three years after the oil spill. It has been established that in oil-contaminated soils, there is a significant increase in the number of soil water-stable aggregates. The increase in the aggregate stability occurs due to a decrease in small fractions (microaggregates and particles) < 0.25 mm. The formation of a water-stable structure occurs immediately after soil contamination and is typical for all tested oil doses, including the minimal dose (0.7 L/m2). In the coming years, there has been a fragmentation and gradual destruction of the soil's water-stable aggregates, but the differences between the control and polluted soils persist until the end of the fifth year of observations.