NRGU is my current oil/energy play. I got into it late, but as a swing trade, I believe it only goes up from here.
...and FYI, I am going through the couch cushions for all the loose change I can find to prepare for what I think is coming in BOIL later this month. I am looking to play BOIL similar to last month, in and out of BOIL in 2-3 days as the contracts roll over into next month, then look at KOLD for a 2-3 day ride back down. Options roll on Oct 27th, contracts roll on the 28th. I am watching to see if a consolidation/bottoming period is taking place now.