Since I usually shop at Walmart, and since there’s no way of knowing what is going to be “out of stock” for no apparent reason when I get there, I have learned to buy things before I run out and to have an extra one or of two of said things sitting in my pantry, not talking about perishables here, so I am ready for short-term outages or price hikes, but as I said up-thread, I don’t think there is any need to stockpile anything except cheap gasoline, assuming you can find it, at this point. Of course, that could all change tomorrow.
Storing gasoline is not safe. IMO.
We have big barn away from the house and I hate my husband and son keep a drum of diesel fuel there.
I picture the whole barn exploding and big sticks raining down.
But I’m kind of a worrywort. 
Oh…about a gas range. My modern range will light with a match. Just proved it my daughter a few days ago.
As long as I can get fire(somehow) we can cook. We have several options on this.