There's a rather good web site called bullionvault.com that enables people to buy and sell gold. Is there anything similar for crude oil? I'd like to buy and sell crude oil as a means of accumulating wealth, but I don't want to use spread betting or any other leveraged device as large price changes might result in me being 'stopped-out'. Furthermore, I'd prefer to avoid contracts with expiry dates. I want to just buy crude oil and hold it indefinitely until such time as I want to sell it again, the same way that Bullion Vault enables clients to do with gold.