Stop in for a cup of coffee

I mentioned previous, Neon oil light sometimes comes on an need to restart to clear. Not sure if I mentioned it's got oil leaking. I originally thought pan gasket, but main source seems to be on back side. Wanna guess what is located right in the middle of the sloppiest area?
I stopped at O reillys and picked up a IAC today, put it on and so far so good.