The investment seeks to replicate, net of expenses, the daily changes in percentage terms of the spot price of Brent crude oil as measured by the changes in the price of the futures contract on Brent crude oil as traded on the ICE Futures Exchange that is the near month contract to expire. The portfolio will consist primarily of investments in futures contracts for crude oil, heating oil, gasoline, natural gas and other petroleum-based fuels that are traded on the ICE Futures Exchange, the NYMEX and other U.S. and foreign exchanges.