Russia is said to base revised 2020 budget plan on $20 oil

Any body clarify this...

No one knows what the future price of oil
crude could be 10 or 45
at the moment oversupply and consumption lower than normal and it will same with virus.
i think 20 is good buy at the moment.

it means they calculated budget with oil price at $20. Whatever..., let them calculate oil at $5, to be even with production cost oil for them should be at $45minimum. Their GDP 70% depends on oil, if Saudis would keep that price for a year, russia would be broke...