small oil drip on driverside cat

[f3nd3rman]

I have 2001 box base 2.7. I have a small drip of oil hanging on the motor just above the driver side cat converter.
Just enough to drip once in a while on the cat and stink that burning oil smell at stop signs and when I get out of the car.
I can’t see where its coming from. Any mechanics out there have any candidates for places to start looking?
Maybe someone has had this problem before.

Thanks in advance