The investment aims to track the daily percentage changes in its shares’ per share NAV, mirroring the daily percentage changes in the spot price of light, sweet crude oil delivered to Cushing, Oklahoma. This alignment is measured by the daily shifts in the price of a specified short-term futures contract on light, sweet crude oil known as the “Benchmark Oil Futures Contract,” along with the interest earned on USO’s collateral holdings, after deducting USO’s expenses. USO primarily invests in futures contracts for various fuels, including light, sweet crude oil, other types of crude oil, diesel-heating oil, gasoline, natural gas, and other petroleum-based fuels.