You’ve got bad information - there is a large NG deposit in the west of Ukraine which is what you are confusing with crude oil.
The info that there is lots of oil in the Donbas comes from some early Russian propaganda, not from actual fact.
You are the one limiting the discussion to “oil”.
Oil and gas is what I’ve been saying.
Yes they have more gas. Which is what powers Europe. But they have plenty of economic oil at $100/bbl.