NAPLES, Fla. - It's not the huge spill in the Gulf, but the clean-up looks the same.

Lightening struck a transformer near 5th Avenue on Wednesday and it leaked more than 200 gallons of mineral oil into nearby Spring Lake.

The mineral oil helps cool the transformer and keep the electricity from arching.

Cleanup crews put out 300 feet of boom, absorbent pads and used a skimming machine to clean up the oil.

"Its not gasoline, but it still is a foreign product that's not supposed to be in water," says the City's Code and Harbor Manager Roger Jacobsen.  "So the city does take this seriously."

It took crews more than four hours to clean up the oil.  The boom will be kept in the lake throughout the weekend as a safety precaution.