Under the conditions of the low-permeable Tyumen Formation, associated petroleum gas (APG) and intrastratal air transformation product are similar in oil-displacing properties. A new approach to the development of oil reserves of the Tyumen and Bazhenov Formations is proposed. It lies in the fact that, when solid organic matter of the Bazhenov Formation dispersed in the rock mass is oxidized, air; rather than oil, should be transformed into an inert gaseous agent. At the same time, artificial fractures will be formed if the rock of the Bazhenov Formation is heated unevenly.