Greetings @crypto.piotr, interesting questions you raise and trying to answer about some generalities of the conflict, I think that such drastic sanctions can increase the tension between the European Union + USA and Russian interests.

I think they are trying to corner a wolf that is about to react and this would trigger serious damage to many societies or countries.

With respect to the use of natural resources, we can observe that they are already looking for new routes to obtain oil and natural gas, since recently a group of North American political leaders traveled to Caracas for possible negotiations of these items, regardless of the economic restrictions they had previously imposed on the Venezuelan government.

A scenario that allows us to understand what interests are prevailing and what the actions of the great powers are..