Russia published a government decree on Monday ordering the sale of a 19.5 percent stake in state-controlled oil giant Rosneft in time for the proceeds to be received by the end of the year, according to Reuters.

The decree, signed by First Deputy Prime Minister Igor Shuvalov, ordered the sale of stake by state energy firm Rosneftegaz to be finalised by Dec. 5, the document showed.

Russia’s budget, which is in danger of running up a bigger deficit this year than the 3.7 percent of gross domestic product envisaged, needs about 1 trillion rubles ($15.7 billion) in total from privatization deals in 2016.

So far, the state has raised 382 billion rubles from sales of shares in diamond producer Alrosa and oil company Bashneft. The rest is expected to come from the stake in Rosneft, which bought a 50.1 percent stake in Bashneft in October.

Economy Minister Alexey Ulyukayev said in a statement that the proceeds from the Rosneft sale were expected to be a minimum of 748.3 billion rubles, and that amount would then be adjusted by a coefficient of 0.95.

That would translate into a minimum of 711 billion rubles in budget proceeds, according to Reuters calculations.