There is tremendous volume in traders, and speculators, that have no interest in actually getting any oil delivered. Many people buy and sell thousands of contracts of oil and gas without the means to hold more than a 5-gallon can.
Getting rid of the speculators would smooth out the markets. If you cannot take delivery, you have no reason to buy. If you do not own any gas/oil, you should not be able to sell it.
You don't know much about economics, do you? Fail.