Russia will assume that crude prices will stay near their present level in calculating next year’s budget as the world’s largest energy exporter adjusts to a downturn on the oil market, according to President Vladimir Putin’s top economic aide. The budget will be based on an average oil price of $50 a barrel, Andrey Belousov told reporters in Vladivostok on Friday. Putin said he’s asking parliament to support a shift to a one-year fiscal plan in 2016 because it’s “impossible” to predict the direction of global markets. Non-OPEC member Russia, whose currency has plunged 45 percent in the past 12 months, is growing resigned to slumping oil, which together with gas accounts for about half of budget revenue. The country is seeking to cooperate with members of the 12-member Organization of Petroleum Exporting Countries to stabilize the market after the Finance Ministry said that the turmoil is forcing Russia […]