Harvey was parked over Houston for several days, and I don't really remember fuel prices being affected that much. The bigger thing to worry about is something like the pipeline hack (which will assuredly happen again).

Prices didn't move all that much, but you literally couldn't get gas in Austin for a week or so, and gas stations would frequently run out for another few weeks after that.

This is an area where small, distributed solar panel arrays and batteries (like on your house) can be much more robust. It's a lot harder to destroy thousands of small solar power systems than it is to take out a pipeline feeding an entire city.