1999 oil in spark plugs

WHen I removed the caps for the plugs there is oil in there. I know that is bad but what is wrong. Thanks JIMMY

You have the 2.5L-V6. Each valve cover has three 0-ring type gaskets for the spark-plug tubes. Yours are leaking just a bit as are mine. You can replace them, or once a year just remove the spark plug wires and clean out the oil as I do. I put a rag over the hole and use compressed air to blow the oil out. Works like a champ.

I'd just replace the valve cover gaskets/seals. They sell them in kits available at your local auto parts store.

The same thing happened to me a couple of weeks ago. Car wouldn't start. Had it towed to the mechanic. I had oil in my sparkplugs, it had fouled the distributor. I would suggest getting the plugs and wires changed along with the valve cover gaskets.