Maybe. We need more info. Why were you removing the coil packs? Was the engine misfiring? Did it overheat? Which cylinders had oil?When I removed the coil packs there was a bunch of oil sitting down in with the spark plug. What causes this and should I be worried?
It could be just from a spill. It could be a problem with the valve cover. It could be worse. More info, and maybe pics would be helpful.