 Ukraine paid an average of $305 in the first quarter of 2010 and $330 in the second quarter.On 21 April 2010, Russian President Dmitry Medvedev and Ukrainian President Viktor Yanukovych signed an agreement in which Russia agreed to a 30% drop in the price of natural gas sold to Ukraine.Russia agreed to this in exchange for permission to extend Russia's lease of a major naval base in the Ukrainian Black Sea port of Sevastopol for an additional 25 years (to 2042) with an additional 5-year renewal option (to 2047).