PowerShares DB Energy Fund (the Fund) is based on the Deutsche Bank Liquid Commodity Index - Optimum Yield Energy Excess Return (the Index). The Index is a rules-based index composed of futures contracts on some of the most heavily traded energy commodities in the world-light sweet crude oil (WTI), heating oil, brent crude oil, reformulated blendstock for oxygenate blending (RBOB) gasoline and natural gas. The Index is intended to reflect the performance of the energy sector. The Fund is a separate series of PowerShares DB Multi-Sector Commodity Trust (the Trust). The Fund is managed by DB Commodity Services LLC (the Managing Owner).