FILE - In this Wednesday May 21, 2014 file photo, a gas pressure gauge in Bil 'che-Volicko-Ugerske underground gas storage facilities is seen in Strij, outside Lviv, Ukraine. Russian gas company Gazprom halted supplies to neighboring Ukraine on Wednesday, July 1, 2015, after the collapse of pricing talks, company official said. Gazprom CEO Alexei Miller said that Russia halted the supply at 10 a.m. (0700 GMT, 3 a.m. EDT) because Ukraine didn’t make an advance payment for July’s delivery. (AP Photo/Sergei Chuzavkov, file)