Energy policy of Russia and in a few cases explicit political demands are evident. Starting 1 January 2007 Gazprom increased the price of natural gas to Azerbaijan from US$110 to $235 per thousand cubic metres. (At the time, Gazprom charged the EU US$250.) Azerbaijan refused to pay this price and the gas supply to Azerbaijan stopped. On its side, Azerbaijan stopped oil exports to and via Russia. A year earlier, pro-Russian Armenia was hit with the same 100% price increase as Western-oriented Georgia, Vladimir Socor has observed. The Russia-Belarus energy dispute began when Russian state-owned gas supplier Gazprom demanded an increase in gas prices
Gazprom the world's reserves. In 2015, the reserves of crude oil were 1.355 billion tons and the reserves of gas condensate were 933.3 billion tons. 59.8 percent of Gazprom's natural gas reserves (Categories A+B+C1) were located in the Urals Federal District (decreasing), 20.5 percent in the Arctic shelf (increasing), and 8.3 percent in the Southern Federal District and North Caucasus Federal District. Gazprom has invested about 480 billion rubles ($20 billion) in new major projects in order to maintain supply. Nearly 37 percent of Gazprom's reserves are located in the Yamal Peninsula and in the Barents Sea. One of Gazprom's major