Diesel and butane prices are to rise this week in the wake of Russia’s June 1 bans on energy exports to Ukraine. Last week, Ukrainian producers of liquefied petroleum gas increased their prices by 30%, Sergei Fedorenko, commercial director of UkrGazVydobuvannya, writes on Facebook. Kazakhstan’s Tengizchevroil had to suspend shipments of LPG to Ukraine last week after Russia refused to allow transit. The company accounts for about 15% of Ukraine’s LPG.