Yes, looks like engine oil. What happens is the cylinder head oil drain back holes get plugged due to sludge inside the engine. Remove the valve cover on both sides and inspect and clean the sludge out.
When you remove the cover there should be large puddles of oil present to confirm the problem.
Here is a guide to help you see what you are in for when doing the job:
Here is how it is on your car (below) I hope Im right becasue there are many steps to get the cover off.
Please let us know what happens.
Images (Click to enlarge)
Tuesday, August 22nd, 2017 AT 10:16 AM