All good points Stealhead. Higher demand always equates to higher prices thanks to those meddling speculators on Wall Street and Uncle Sam's need for cash.
For me, all points are moot since I don't drive much anymore. A 25 gallon tank of petrol in my V-8 pickup lasts me about a month.
I could probably get by with an electric car as my trips are mostly short hops but, the current cost of that type of vehicle is prohibitive. I wouldn't mind having a Tesla parked in my driveway.
If we really wanted to boil down the technology of our internal combustion pushers, you could say that they're all electrically powered since it takes some very high voltage to detonate a fuel/air mixture. Without that you have a gargantuan paper weight. Diesels are the exception to some degree because they only have glow plugs to start the cycle and detonation is caused by high compression.
Thank goodness I don't have to depend on a fuel oil boiler to heat my home. I burn COAL baby. No natural gas in my neck of the woods prohibits that type of heat and propane is more expensive than fuel oil. Not to mention inherently dangerous.