 In the world, the implementation of modern methods of oil recovery such as thermal, gas, chemical, and microbial stimulation has become increasingly important due to the rapid growth of oil reserves. These methods have been proven to be highly effective in enhancing oil recovery from both conventional and unconventional reservoirs. Additionally, these methods have been found to be cost effective when compared with other methods of oil production. Furthermore, the combination of these methods can produce a synergistic effect in developing existing oil fields. This paper reviews and compares various theoretical and practical methods of enhancing oil recovery from conventional and unconventional reservoirs. The paper also discusses the factors affecting the efficiency of these methods, including the geology of the reservoir, its size, and the properties of the oil. Finally, the paper provides recommendations for selecting the most suitable method for a particular field. This article was authored by Boris V. Malozyimov, Nikita V. Mardyachev, Vladislav V. Kukartsev, and others. We are article.tv. Links in the description below.