He who controls the fuel, controls all.
Fuel santions have been a popular punishment used by the United States to impose their will upon other nations.
Economic sanctions that were aimed at halting Japanese expansion by preventing fuel purchases is what eventually led the Japanese to attack Pearl Harbor. Google search for the effects that US led sanctions have had on numerous other countries. You have no fuel, you have no economy.
Today, North Korea said any more sanctions from the US
will mean war.
But hey, so long as you can drive your SUV mcDonalds for a big mac, who the fuck cares.