——But selling gas to a specific firm within a specific country is certainly possible.——
Except..... if a vindictive EU bureaucrat in Brussels creates a regulation making the sale unprofitable.
GA 10389 2.2 Imported natural gas arriving by ocean vessel must exceed a density of 0.45 kg/liter or pay a penalty
What applies if the LNG is gasified before coming ashore?
https://en.wikipedia.org/wiki/Klaip%C4%97da_LNG_FSRU