UCO = +2X USO (CL futures)
SCO = -2X USO
ERX = +2X XLE
ERY = -2X XLE
GUSH = +2X XOP
DRIP = -2X XOP
GUSH was up the most today at ~8%. Oil & Exploration are usually more volatile than the Oil majors. Also XOP is equal weighted vs XLE which is market cap weighted which pretty means you rely on XOM & CVX to do well. UCO is he most liquid after USO, of course.