Haven't done it but its looking good.  Dad talked to vendor today.  Have heard of a few already locking some in.  Lowest prices in this millennium or close so you gotta figure it won't last forever.  OPEC isn't content and they won't allow prices to stay put too long I don't figure.  Experts say they were trying to bankrupt our domestic production but it hasn't been quick and successful as they thought.  They manipulate the market-period.