KIEV, Oct. 22 – Ukraine and Vanco International Limited (U.S.) have agreed that the shares of the parties under the production sharing agreement during the development of the Prykerchenska oil and gas field will be 30 to 70, and 50 to 50 when extraction commences, Ukraine's Environment Ministry told Interfax-Ukraine on Monday.

In his turn, Vanco president Gene Van Dyke confirmed this information in an interview with the Delo newspaper.