The exact volumes of gas currently lying deep underneath the Black Sea are not yet known. Rough estimates predict that the Ukrainian shelf may contain more than two trillion cubic meters of gas.
The exact figure is yet to be determined since two-thirds of the country’s maritime area passed to de facto Russian control following Moscow’s illegal annexation of Crimea in 2014. Ukraine’s state energy company Naftogaz is preparing [2021] to explore 32 remaining blocks.
That, plus the Donbas, seaports, and pipeline routes...Putin is no dummy.