In this paper the evolution of the methods of oil production intensification and enhanced oil recovery (EOR) in the USSR and the Russian Federation is considered. By authors were identified and described the historical stages of development of the secondary and tertiary EOR fields on the example of the Republic of Bashkortostan with the indication of major events that have had a significant impact on the technology development of deposits in the country.

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The study is devoted to the analysis of Russian historiography of the problems of the formation and development of local self-government in Russia from the late 1980s to the early 2000s. The relevance of the study lies in the increasing role of local government in solving key issues of socio-economic development of the country and its regions at the present stage. We note the position of local self-government at the junction of many areas of scientific knowledge, it is determined that the research of problems of local self-government is often interdisciplinary in nature. The decisive significance of the changes that took place in the political system of Russia, which set the methodological and ideological foundations for scientific research from the late 1980s to the early 2000s, is revealed. As a result of the use of historical-comparative and retrospective research methods in the work, it is possible to establish the main stages in the development of the historiography of local self-government in the period under study, to determine the key problems solved at each of these stages, to identify and interpret the opinion of scientists from various fields of science regarding the problem under study. As the analysis of the historiography of local self-government has shown, despite the incompleteness of the source base in the late 1980s and early 2000s, it was during this period that fundamental works on local self-government were created, which laid the foundation for subsequent scientific research. We draw conclusions about the need for further study of historiography with the expansion of the range of sources, which will highlight the most promising directions for the development of local self-government and, possibly, will be of practical interest for modern public authorities.