That is exactly how my car is leaking. I removed one of the oil pan bolts, and the bolt hole was full of oil, as well the bolt was also coverd in oil, so that leads me to believe my oil pan gasket is bad as I have replaced all other gaskets above (valve cover, LIM gaskgets) whith no signs of leakage, block above pan rail is clean and dry. I recommend removing one of the pan bolts and see if it is wet inside, or dry. If it is dry, your leak may be comiing from above as suggested in erlier posts.
I have these to install when the next oil change is due. How much FUN it is going to be!