[naz]

i had good luck with the following process to remove oil..

1) pouring a whole bunch of liquid soap like dishwasher or laundry detergent over the spill and then scrub it in and let it sit..
2) pouring some carbonated seltzer water over it and then scrubbing some more
3) pour some non clumping cheapo clay cat litter over the whole mess and letting it absorb the oily water and then sweeping it up

you'll probably have to repeat this process a bunch of times but you should be able to get most of the oil out... the liquid soap and seltzer water bring the oil to the surface and the cat litter lets you mop it up

good luck