Naturally, the habit of keeping vehicle tanks "topped off" is a good head start, Several 5 gallon containers protected in storage with Sta-Bil (or the like) in cool, steady temps enable an even greater margin of safety for range ability.
Heck, I keep the same for my JD in diesel - moving snow, working a field - it all needs to happen whether the local pumps are working or not. Of course _long term_, horses, ala Amish style might become the default. Big divide in prepping for interruption of supplies versus the end of ALL resupply.
Got the good news this morning that a mix of hay and alfalfa is scheduled for delivery this coming weekend - well enough ahead of election and aftermath to ensure the two horses under my roof have good feed for entire Winter and into Spring. Dog and cat food also being stacked. Distilling to resume as soon as I finish "homing" litter of Griffs (now 8 weeks old).