, refinery availability, etc. also it is “created” everyday at the well by pumping and shutting down a pump has a lot of issues. Better for the owner to give it away or pay somebody to take it rather than shut down. Most other commodities don’t behave like that. As economies reopen people will start driving again. Main use of crude in the US. Gold, silver and copper can be shut down from a production standpoint. Milk and produce can be discharged so they will never go negative. Many other commodities can be stored or the animals kept alive longer.