Let's pretend for a moment that this wouldn't make things even worse at some point down the road (which I don't think for a moment you believe)...
With everything on "lock down" hardly anyone is driving anywhere. That means demand for gasoline is way down. However, trucks that use diesel fuel (and can't use gasoline!) are still rolling to keep the essential things (like food!) moving. Now what happens at an oil refinery? Crude oil get fractionally distilled and/or "cracked" into several end-products, the biggest of these being gasoline and diesel fuel. The product ratios can be adjusted a bit, but not a whole lot. That means there is currently a substantial surplus of gasoline. What do you do with that surplus? Well, you put it in storage tanks. What do you do when all your storage capacity is full? You really have no choice by to to shut down the refinery, and you get neither gasoline or diesel fuel. The only saving grace with this is that demand for jet fuel (which is made from the same fraction of crude as diesel) is also way down.
How many manufacturing business are shut down right now because they've been declared non-essential? What happens when an essential one (like one producing food!) needs something from one that's "non essential"? Anyone who thinks that bureaucrats understand these kinds of relationships -- without which everything eventually comes to a grinding halt -- and that they're capable of deciding what is and isn't essential should read the classic essay, I, Pencil:
I, Pencil by Leonard E. Read | Leonard E. Read
Wait, Youtube has it:
