First you want to remove the oil as quickly as possible. If the oil is left on the asphalt it will soften the pavement and eventually destroy it leaving a hole and a stain.
First things to do are;
Next, try to remove what is left of the oil and as much of the stain as possible. Below is a list of a few ways to try and remove the oil stain using products you may have at home.
These are a few ways to try and remove oil spills and stains from you asphalt using common house hold products. If the stain is still present after any or multiple ways of trying to get rid of it you may want to look into industrial cleaners or sealcoating as soon as you can. The longer the oil and stains sit on the asphalt the more damage it will do over time.