Oil Leak on engine turn off, not burning oil though.

[240SX Newb]

Hey guys, i searched this up and looked around, but i cant seem to find the answer. My car has a KA24DE and when i turn it off it seems to spit out some oil from near the back of the engine, i looked underneath and everything is soaked with what looks to be motor oil, my oil level went down a bit since i looked 2 days ago, and its not burning oil at all (i had a buddy drive behind me while i was ripping it a few times and there wasnt any blue smoke), so im just wondering what could cause this leak? Ill post some pics later on, i need to buy batteries for my camera, but i put all my money in gas for my car lmao.

[GODCHSR]

Probably the Rear Main Seal.

Is the oil heavily located where the engine meets the transmission?

[nuinqua]

What do you mean, "when i turn it off it seems to spit out some oil from near the back of the engine"? You can actually see oil coming out of the engine when you turn if off? Where exactly? top of engine? bottom of engine? like GODCHSR said, where the transmission and engine meet?