A method for bioremediation of petroleum derivatives contaminated soil was presented. It was applied in field conditions since 1993 to 1998. Results of the research work over petrol, oil and jet fuel biodegradation in soil were discussed. It was found out that efficiency of the process of biodegradation depends on the extent and kind of petroleum products contamination as well as a type of soil. It was demonstrated that the biological method applied in the research work allows to remove 80-99% of the hydrocarbons within 22-74 days.