The harbor of Poti in Georgia is near the major oil terminal of Supsa in the Black Sea.
Georgia is reporting the harbor has been destroyed. This major secondary route for oil on Baku-Tbilisi-Ceyhan pipeline is now closed and the primary route to the Mediterranean through Turkey has been shut down because of sabotage by the PKK.
Thus the pipeline, over which 1.15 million barrels of oil a day travel, now appears to be completely shut down.
You don’t start a military showdown with someone who can turn the gas off.