The main theoretical and methodological provisions for development and regulation of energy transit in the framework of georegional dimensions have been improved in our scientific investigation. Oil and gas transit has been studied as an important structural element of product-innovation chain of supply in the Eurasian energy market. The author has analized the main specific features of globalization influence on the service sector development, that predetermined quantitative market growth, its geographical expansion, trade liberalization, new services creation, qualitative competitiveness strengthening based on innovations. It was stressed, that due to global supply chains development the value of transportation services, including transit as a linking element of global trade flows, has been significantly intensified. It was proposed to determine "global product and innovation chain of supply" that provides products transmission while presenting innovation in different stages of supply. In order to define the place of transit in the structure of energy supply chain, the mechanism of its implementation has been divided into three main stages, such as upstream, midstream, downstream. The georegional dimension of energy resources transit has been presented in the work while studying the Eurasian structure of energy supply chain, that includes upstream suppliers (Russian Federation, Caspian region), midstream transit-countries (Ukraine, Belarus, Turkey, Georgia, Bulgaria) and downstream customers (the European Union). The dominant role of Ukrainian oil and gas transit system in the Eurasian energy supply chain has been studied in the framework of comparative analysis of transit-countries energy transmission infrastructure. The dynamics and prospects of energy resources transit by Ukrainian territory estimation have been defined while studying the following aspects of Eurasian energy market development: projected oil and gas supplies from Russia and Caspian region; the development of energy transmission infrastructure projects in bypass of Ukraine; the transit risk index estimation for the EU countries and bargaining power changes in the Eurasian energy supply chain. It was shown that despite the diversification projects implementation for oil and gas transportation in bypassing of Ukraine, the energy transit flows in Ukraine may be stable in case of national transit infrastructure modernization, improvement of transport efficiency and quality, provision of delivery safety, introduction and development of effective co-operation with members of energy supply chain on Eurasian market. It was emphasized, that energy supply chain regulation system needs the improvement with a help of management optimization mechanisms in different levels (international, regional, national). It would determine the implementation of international agreements based on convergent institutional principles and will lead to enhanced cooperation between all energy supply chain members on the basis of equality and balance of interests.
