Funnily enough, gas pumps require electricity. However, you can generate electricity yourself with solar panels, wind generation, or other methods. You can't generate your own gasoline.

The self-reliant durable solution is electric. If the grid is down and you can't generate your own electricity then your gas heating is down, gas pumps are out, and almost any other gas system is shut down unless they're hooked up to a generator of some kind (gas, solar, etc.). If you can generate electricity then any will work. If you can't then electric is out of commission just as much as gas. Once the tank/battery is empty then it's dead.