Abstract
The article assesses the foreign countries experience in formation of the energy market and the basics of managing the development of gas supply systems. The creation of a system in order to provide access to gas transport services for gas consumers, gas producers and its suppliers, as well as the creation of favorable conditions for investment is a significant stage in the implementation of effective market transformations. One of the fundamental points for carrying out the reforms in gas industry in the market conditions should be the arrangement of trade system for reserved capacities. The positive results of the reform include: reduction or stabilization of prices for end-users, diversification of gas supply sources, improvement of the gas supply reliability.