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The successful supply of an economy with coal fuel, for a country that carries out its large-scale extraction and import, is a complex production and logistics problem. Violations of the usual supply scheme in conditions of crises in the energy markets, international conflicts, etc., lead to the problem of simultaneous restructuring of the entire supply scheme. This requires changes in the directions and capacities of domestic production and imports. In this article, the above problem is solved by the economic and mathematical model of production type. The developed model includes subsystems of domestic production and import supply. The results of modeling economy supply with thermal coal for different values of demand are given. The model was used to determine the amounts of coal production for Ukraine with the structure of the coal industry of 2021 and under the condition of anthracite consumers’ transformation to the high volatile coal. Simulations have shown that eliminating the use of anthracite requires the modernization of existing coal mines. Under those conditions, the import of high volatile coal will amount to 3.751 million tons in 2030 and 11.8 million tons in 2035. The amounts of coking coal imports will be 5.46 million tons, 5.151 million tons, and 7.377 million tons in 2025, 2030, and 2035, respectively.

A software subsystem for the formation of forecasts of coal production in Ukraine has been developed under the conditions of instability of the structure of the country's fuel bases, which arise as a result of force majeure factors, in particular, martial law, temporary occupation of the territory, destruction of mining enterprises, etc. The program was created with the aim of providing opportunities for a quick assessment of the impact of emergency situations in the country on production volumes in the coal industry and their further consideration during developing forecasts of the fuel supply of the economy, and the energy balance of the country as a whole. The software is created on the basis of databases detailed by coal mining facilities, and professional forecasts of the development of the coal industry, which take into account the mining and geological, technological, economic, and social features of the functioning of mines, as well as possible scenarios of their technological conversion, optimization of production areas and allows to make such forecasts by changing the expected production state of the mine upon the occurrence of force majeure circumstances. The developed forecast adjustment subsystem enables change quickly the structure and composition of the country's coal base; calculate the aggregate volumes of coal production, differentiated by grades of coal and its technological purpose and according to several scenarios of the technological development of the coal industry, which will take place under selected changes in the structure of the mine fund; form general production forecasts, which contain calculated aggregate volumes for all terms of the forecasting period. With the loss of all mines in the Luhansk region and some mines in the Donetsk region as a result of the full-scale invasion of Russia into Ukraine, the forecast scenarios of the development of the coal industry of Ukraine for the period until 2040 were adjusted using the software subsystem for forecasting the volume of coal production. Keywords: coal industry, software subsystem, forecasting, mining, development scenarios.

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The article analyzes the world experience in assessment of the methane emissions from closed mines and the possibilities of its utilization for the country's economy by natural gas producers. Government regulators, the oil and gas sector, the agencies for development and policymakers should consider methane resources by identifying potential hazards associated with the methane release after mine closure and decommissioning and improving the controllability of emission reduction measures. Important concomitant benefits of methane from closed mines extraction and utilization are a significant reduction in the risk of uncontrolled surface emissions, the exploitation of gaseous resources that would otherwise become waste, and a reduction in greenhouse gas emissions. According to the researchers, 103 billion m3 of methane was emitted from existing underground and open deposits in 2010, and another 22 billion m3 from closed mines. The total amount of 125 billion m3 for 2010 is 50% higher than the estimate of 83 billion m3 obtained by the Emissions Data System of the American Geophysical Union. This is stated in a new study by the Pacific Northwest National Laboratory of the US Department of Energy. The closure of coal mines and, consequently, methane emissions from closed mines will continue to be a pressing and important issue in the foreseeable future as countries continue to exploit and deplete their coal reserves at an ever-increasing rate. This is the case in many developed countries, where coal production is declining and mines are closing. However, this also applies to some developed and developing countries, where coal mining will continue to play a significant role in the structure of the energy balance, and closed mines will be replaced by new ones. Thus, the total emissions from closed and closed mines can be significant and are likely to be increasingly significant. In 2010, the Ministry of Foreign Affairs accounted for 17% of global emissions of mine methane and, according to forecasts, in 2050 this share may increase to 24%. Coal is paramount in ensuring the energy security of many countries and plays a significant role in mitigating energy shortages around the world. As coal reserves deplete or due to changes in the energy sector of the economy, mines are inevitably closed and decommissioned. Closure of mines can provide a small but important opportunity to use such an environmentally friendly source of energy as methane from closed mines (MSS), which can be extracted and disposed of using existing technologies. There is an urgent need to develop projects that will be implemented after the cessation of mining activities and aimed at reducing overall emissions from the life cycle of coal mining, by optimizing the extraction and utilization of methane that would otherwise enter the atmosphere. World experience and theoretical studies of methane emissions to the surface during conservation (closure) of mines are important for understanding the processes of methane release and the corresponding degree of its further involvement in the economy of Ukraine. Keywords: methane emissions, utilization projects, closed mines, methane flow, potential danger