There’s the makings of a crisis swirling in America’s oil-storage tanks, and the next few months will determine whether it’s a minor annoyance, or a major blow, to U.S. oil. The basic problem is that too much oil is being pumped, and not enough is being used up. America is running out of places to store all of the excess crude. That’s a problem, and it could send prices plummeting — some say to $20 a barrel or even lower . (For context: Last summer it was more than $100, and today it’s less than $50.) That’s probably not going to happen, but it’s not as crazy as it might first sound. Stockpiles are at record-high volumes after 10 straight weeks of increases. The U.S. is currently accumulating an extra one to two million barrels a day more than its using. The oil imbalance is bad, and it’s still getting worse. If oil inventories begin to top […]