The easiest way to reduce demand is to just tax fuel
Sorry no, there is no easy way to reduce demand of OIL. If you want to truly reduce demand of OIL you need to find a VIABLE alternative fuel, electricity and NG are not VIABLE alternative fuels
Why would you say that they are NOT viable? Seems like Tesla has proven that electricity is viable for cars, Burlington northern is converting their diesel engines to LNG, and I noticed that my WM garbage truck is now LNG. More importantly, businesses are screaming that NG is viable, and car owners are screaming for electric cars.