The independent republics in the Donbass region have around 20 billion ton of hard coal reserves (see picture)

At the current price of 185 dollar per ton that is worth 3.7 trillion Dollars

https://markets.businessinsider.com/commodities/coal-price

Methane gas reserves associated with the coal deposits were estimated to exceed 2.5 trillion cubic meters

Methane gas reserves associated with the coal deposits were estimated to exceed 2.5 trillion cubic meters.

http://www.encyclopediaofukraine.com/display.asp?linkpath=pages%5CD%5CO%5CDonetsBasin.htm

Assuming that the now independent regions have 1 trillion cubic meter gas that is around 2 trillion Dollar

Total coal and gas reserves = 5.7 trillion dollars

>>15692578

Also shale gas in that region

>>15692689

Also the pipelines indeed

>>15692578

Crimean offshore gas reserves in the black see is around 3.8 trillion cubic meters. That is with the current price around 7.4 trillion Dollars

http://johnhelmer.net/the-crimea-effect-whoever-controls-crimea-controls-huge-reserves-of-offshore-gas-but-maybe-that-wont-be-exxonmobil-or-nathaniel-rothschild/

>>15692853

And this one. Main pipeline to the south stream, so Russia doesn't need Ukraine to supply south and south east Europe