u/Capital_Addendum6806

I have discovered a small leak on my 986! It seems to be around spark plugs 4 and at the drain plug all other spark plugs are dry. Online it says it is the spark plug tube however what I find confusing is oil appears to be above and around a lot of the area. How could a tube cause a leak so far around? Any help on what else it could possibly be would be great
thanks