You need to be more specific. Where exactly is the oil comming from? If you dont exactly know, degreese the engine. That way you can seek out the oil leak.
There are afew places that are prone to leaking, but like I said we need more info on where its comming from.
I second front main seal. Very common problem on this engine. When it goes, makes a big mess. When mine went oil was all over the bottom of the engine. Look where your drive belts are. If you are under your car oil should be leaking from that side of the engine.
Defiently sounds like the rear main seal. My 200 is in the shop right now getting the seal replaced the clutch also. It's a pain to get out, have to remove the transmission. Fortuneatly, the seal is super inexpensive.