Thanks Jacko! Yeah it is not a worry really, it won't affect the car much. I just want to try and figure out where it is coming from. No it is definitely oil hey, not petrol.
Culzean: Not sure exactly what you meant, but basically the top of the spark plug is full of oil (the ceramic white part). And the tips of the coils as well. It does smell, look and feel like oil (basic brownish/yellowish oil). It shouldn't be oil spill when changing because I always use a Funnel. I also wiped of the plugs a while ago, and checked it now to see oil again. So it isn't something that someone else left there (like vaseline)