The subject of the research is conflicts between businesses and local population concerning negative impact of mineral resources extraction on the environment and possibilities of its prevention. The purpose of the work is creating an economic mechanism for  ecological conflicts prevention in the regions where mineral resources are extracted through implementing an economic mathematical model of forming optimal assortment of compensatory measures. Mechanisms of preventing ecological conflicts in mineral resources extracting regions including two ingredients — expert analytical and optimizational — are proposed. While realizing the expert analytical constituent of the mechanism, local population on a par with authorities and representatives of the extracting enterprise are involved in prioritizing in the course of reducing man-impact on the environment and in the process of compensatory measures portfolio forming. Optimizational constituent of the mechanism for ecological conflicts prevention demands forming a model for optimal compensatory measures choice. Scientific novelty and significance of the work are presented by a rate scale for expertise of possible negative ecological consequences of creating and operating an extracting enterprise from the point of view of population groups. As the research result an algorithm of expert assessment processing enabling to determine the priority ranking for reducing man-impact on the environment and tension reduction between the extracting enterprise and local population is formed. An optimizational model enabling to determine optimal set of compensatory measures taking into account the interests of both extracting enterprises and the most conflict groups of local population is proposed.