The subject of this research is the historical role of Russian scientific community in studying the Arctic and Subarctic territories during the years of Great Patriotic War. The key goal consists in demonstrating the contribution of scholars to accumulation of scientific knowledge on the northern region in the context of solution of the priority government objective and establishment of scientific organizations on the European North of Russia in first half of the XX century. The main tasks of this research lie in reconstruction of the process of creation and activity of oil shale laboratory of the Base of Academy of Sciences of the Soviet Union on studying the North under the authority of Professor D. N. Kursanov, who dealt with the questions of utilization of solid fossil fuels of the Komi ASSR. This topic did not receive due coverage within the scientific literature. For solution of the set tasks, the author attracted the unpublished archival materials from the Archive of the Russian Academy of Sciences, Scientific Archive of the Federal Research Center “Komi Scientific Center of Ural Branch of the Russian Academy of Sciences” and National Archive of the Komi Republic; writings of the staff members of the indicated laboratory published based on the research results in 1940s, as well modern researchers of the depths of Russian North. The article explores the history of establishment of scientific department, development of scientific programs and plans, organization of interaction of academic community with the government and economic branches of the Komi ASSR. The main conclusions consists in the proof that the scientific-organizational activity of D. N. Kursanov led to conducting strategic research of defense designation on the problems of studying oil shale of the mineral deposit on Ayyva River, utilization of oil shale for motor fuel generation, and elaboration of new chemical products for defense industry. It is underlined that the high level of explorations and pilot surveys carried out by national scholars in these directions contributed to the development of new shale-chemical industrial sector of the country in the later years.