Like I said, I don’t know if it’s still the same, as this was in the late ‘60’s.
Understood.
They are very spread out because their oil and gas fields are.
Just about everything everywhere can be traced to oil as critical. Europe’s (Hitler and his allies) invasion of Russia was about Stalingrad (now called Volgograd). About half of Russia’s oil flow moves north on the Volga River with Volgograd as a chokepoint. That’s why the German High Command pointed at it.