The Center of Gravitation
1 bbl = 159 l = 1590 kWh (roughly)
110 USD / bbl divided 1590 kWh / bbl = 0,69 Cents / kWh in crude oil
Now the efficiency of a mobile motor is ,3 at max which gives you 23 Cents / kWh effective power on the wheel.
Now can you do that power on the wheel cheaper with something else? Like with solar power, wind power combined with e-mobility? If yes, then this is the prices center of gravitation. Of course you can withstand gravitation for a while.
(als Kommentar auf Oilprice.com)