Russia's natural gas exports will be slashed by 40% over the next three years, according to documents seen by the news agency.
Europe's energy crisis could be worsened by Moscow's plan to cut gas exports in the next 20 years. This year's total is estimated at 142 billion liters of gas.
While the draft budget doesn't break down flows by different export markets, historic data and current gas flows show that China is likely to become the second-largest buyer of Russian gas due to a deal to supply 21 billion of gas through the Power of Siberia. Turkey is expected to become the biggest client.
In the last few months, gas supplies to Europe have been cut off by the state-run energy company.
Senior European Union officials have accused Putin of manipulating energy flows in a bid to stoke the continent's energy crisis.
Dutch TTF natural gas futures have soared 120% to 186 euros per megawatt hour since the start of June as Moscow cuts supplies, while the euro has plummeted 8.5% against the dollar.
There is a map showing where Europe gets its natural gas.