Too bad we didn't refill back in March of 2020 when oil approached zero.
Oil went negative, because futures contracts were coming due, and no one was buying. Refineries were full to capacity, and products were not moving. Trump offered temporary storage in the SPR with 10% to remain when withdrawn for storage fees, and that brought oil out of negative territory. I'm not sure that any oil actually went onto the SPR, but it was a brilliant business win/win solution.
Shortly thereafter, those of us in the drilling industry had a year off...without pay, of course, as prices restabilized.