Oil has passed $80. At those levels it will choke whatever little economic recovery we have. However, shall the US dollar continue to drop, oil will rise further.
We also track the relative strength values of all these ETFs. Here the are, ordered by a short time frame indicator (RSI daily):
Whether oil goes up or down, straddles allow investors to profit either way, as long as the underlying stock moves. Here are straddles for both USO and UCO:
Please do your own due diligence.