The causes you propose may be true but don’t respond to “higher than never”. I’ll add to your note the not-totaly-solved risk of petroleum not being infinite and while the industry is not freaking out, it has started to questioning itself.
I can buy “prices are very hight” but how would you measure that ? Also did you took inflation into account in your estimation ? Flight “recovery” is largely due to Asian market booming, so prices may go up in the US while decreasing in the biggest market share.