The issues, related to production of special purpose agents, intended for dust control in pits and on temporary highways, were considered and solved in this work. The agents are developed on the basis of high-aromatic distillate fractions and black oil fuel. In order to achieve qualitative and optimum compositions of finished preventive agents, the physical and chemical properties and hydrocarbon composition of source raw material -gas oils of thermodestructive and thermocatalytic processes and black oil fuel, as well as a depressing ability of the last, were examined in detail in the work. The prepared compositions will allow us to increase a crude oil upgrading index in the oil-processing plant and to increase profit of the enterprise. Along with economic benefit of a manufacturer, an application of preventive agents is also beneficial for a consumer. Application of these products will allow improving the general ecological situation both in pits and on temporary highways.