Some folks in parts of the world are very reliant on gasoline, while some are more dependent on electric. Petroleum based products however are still in absurd demand by almost all parties. How do you stand to fair if the oil situation continues to worsen? Plastics. Nylon. Jet fuel. Tires. Asphalt. To name just a few things that heavily rely on oil byproduct.
The difference is, the windmills and solar panels and such are in use a lot longer than a tank of gas.