be careful with commodity funds. If you are referring to the ETF futures, these are fund that based on commodities and is not mean to keep long term. E$ w& C% x3 \4 {% ^4 k! G6 W$ _4 K* ~7 {6 M, F
If you want to invest in energy, it would be best to invest into companies that produce these commodities, not the future of these actual commodities..