With Russia-Ukraine gas transit talks stretching into today, Gazprom showed its seriousness Friday by paying Naftogaz $2.9 billion. The money was paid in full β principal plus 10-months interest β for the Stockholm arbitration award of Feb. 28. βYes, Ukraine received $2.918 billion from Gazprom in pursuance of the Stockholm arbitration decision,β Yuriy Vitrenko, Naftogaz executive director, wrote Saturday on Facebook.