The original question, that resulted in these replies, seems to have gone missing. JasonLion
You want to soak up, or skim out, as much of the oil as you can by hand first. The more you can remove, the sooner the pool will be back to normal. They make special sponge like things that soak up oil and mostly ignore water.
Chlorine alone will break down the oil eventually. Enzyme products can speed that process up. Either way it is still going to take a little while to get rid of it completely.