Abstract <p>Current estimates of the potential of the oil-and-gas source strata of the Cis-Uralian Foredeep are based on geological models of its structure and oil-and-gas potential, created according to the results of regional and prospecting works, which were carried out mainly at the end of the last century, and need to be revised and updated based on new geochemical data and modern technologies. The contribution of the Lower Permian source rock strata and their generation potential have also not been fully clarified. The purpose of this article is to assess the formation of Lower Permian source rocks in terms of lithology and geochemistry and evaluate the possibility of their generation in the Cis-Uralian Foredeep based on the example of the Divinskaya Formation.</p>