RE:RE:RE:I WonderYea I don't think 1,500 tanks in all armed conflict will make that much difference, especially seeing as how electric drones seem to be the new weapon. Battery recharge is more solar, generators yes for comms and heat but the gas they use is a drop in a very big bucket. With winter coming, the biggest conflict being Ukraine/Russia the majority of armoured vehicles will be laid up. So just don't see your high price expectations for oil if based solely on world war zones.
Heating oil in Europe is the lowest it's been for ages. Most have now filled up their oil tanks ready for winter. It's 73p a litre in the UK currently and was over 1.09 18 months ago.
The only way your prediction would happen would be an attack on major world wide oil refineries. (Shrugs)