Spark Plugs & Oil

Hi,
I recently changed my spark plugs and notice oil on two of them. Can anyone give me any kind of idea of what maybe causing this problem?

Previous to changing the spark plugs the car was not delivering power properly on the low revs (esp. in 1st gear) Since replacing the spark plugs all is good, except this oil problem.

Thanks & Merry Xmas + Happy NY's Everyone.

is it very fresh oil ? Possibly , liek my car - you need to change the "o rings" - which seal the top of each spark plug chamber . . . oil is simply leaking down past the o rings, and ontop of the sparkplugs- when u remove them - the oil leaks down and onth the thread and electrode of the sparkplug.

was the oil on the electrode side, or the other side where the plug wires connect?

electrode side.....