That depends on the refined gasoline. Someplace like California, where petroleum is really heavy and needs a lot of energy to extract/refine, uses roughly 13kWh

That depends on the refined gasoline. Someplace like California, where petroleum is really heavy and needs a lot of energy to extract/refine, uses roughly 13kWh of natural gas, electricity, etc, to deliver one gallon of gas (page 5). https://ww2.arb.ca.gov/sites/default/files/classic//fuels/lcfs/ca-greet/lut-doc.pdf https://ww2.arb.ca.gov/sites/default/files/classic//fuels/lc... Most of that 13kWh is natural gas, so you can't use it directly in an EV. It can be used to generate electricity in a high efficiency natural gas power plant though, which would provide ~6-7kWh to consumers. By avoiding extraction/refining/transportation of petroleum and the associated natural gas/electricity used in those steps, we can instead use that to generate electricity, which would power an average EV at ~250Wh/mile roughly 25 miles. In places where petroleum doesn't need as much natural gas for extraction, that figure is lower, but the idea still applies.