Firn,

Thanks for the economic data. However, I think we should consider that (1) short-term economic losses in the financial market can be quickly restored once stability is perceived to return and (2) economies as systems tend to be far more resilient during conflict than generally assumed. Interestingly, the combination of falling ruble value and increased prices for oil and natural gas can work to Moscow's advantage as far as cash balance is concerned.

From oilprice.com:

Stocks are taking a beating, but investors are pouring money into commodities on the expectation that supplies could be cut off. Russia rounds out the top three oil producers in the world (along with the United States and Saudi Arabia), so the prospect of a Russian ground war in Ukraine is causing some serious jitters in oil markets. Crude oil (Brent) was up more than 2.2% to $111 per barrel in morning trading on March 3.
As you highlighted, the Russian economy is largely centered on commodity exports.

From the same article:

Europe imports 34% of its natural gas imports from Russia via Ukraine. Supply fundamentals appear to be normal, and thus far there are no reports of disruptions. Citigroup says it does not believe supplies will be “materially affected,” as reported by Bloomberg. But the markets are not so convinced.
Again, the key unknown here is how Kiev will resolve it's own cash problems, the deadline for which is approaching in several weeks. IMF loans conditioned on austerity measures, which will no doubt cut the natural gas subsidies in Ukraine, could escalate the domestic political crisis in the country. What then?