This paper represents a preface to the Proceedings of the 9th International Scientific Conference on Sustainability in Energy and Environmental Science (ISCSEES 2022) held worldwide on June 22–24 2022. Background information and the organizational structure of the meeting, program committee, and acknowledgments of the contributions of the many people who made the conference a success are presented.

In the article, the authors analyzed the theoretical foundations of sustainable economic growth based on the research of modern foreign and domestic scientists. It is proved that the economy of the linear type has exhausted itself due to the effect of scale. That is why, today, one of the foreground of research areas among leading domestic and foreign scientists is the concept of sustainable development which should be based on cyclical or circular economy principles. One of the directions of development is working out methods of products price formation taking into account resource-efficient strategies. The article presents price equilibrium scenarios developed by the authors, which were implemented in the oil and gas industry based on business activities for 2015-2020. These scenarios were developed by the authors using Leontiev’s cross-industry model, which explores how do these changes can impact the performance of resource use, based on changes in direct cost ratios, value added ratios and intermediate consumption ratios.