10 New Jersey co-workers may have found the golden ticket.

A group of Chubb Insurance empoleyees say they're the winners of a $216 million Mega Millions jackpot.

The group showed off the winning ticket Wednesday afternoon outside of the insurance company where they work in Whitehouse Station, New Jersey.

The winning numbers were: 26, 32, 35, 43, 52 and the Mega Ball was 10.

The single lucky ticket in Tuesday's Mega Millions $216 million drawing was sold at Singin Oil, a small gas station in Ocean County, according to state Lottery spokesman Dominick DeMarco.

As of yet, however, lottery officials report that the group has not officially come forward to claim the prize of about $8.1 million a year before taxes for the next 26 years.

"If you have the winning ticket, sign the back of it, put it in a safe place and seek legal advice before you come and talk to us," William Jourdain, acting executive of the New Jersey Lottery, told reporters Wednesday.

"It's a large sum of money, and with today's economic situation, you should be careful with it."

The cash option is worth about $137 million before Uncle Sam's share is extracted, although the winnings are not taxable by the state of New Jersey.

Singin Oil, which was bought by Taner Cetintas in January, stands to receive a $10,000 check for selling the ticket — and Cetintas already has plans for the money, including paying off his debt for the store.

"I have to pay some bills," Cetintas said at Wednesday's press conference. "I've already spoken with the previous owner. I told him ... whatever I get, you will receive it the next day."

The largest Mega Millions jackpot of $390 million was on March 6, 2007, shared by lottery players in New Jersey and Georgia.

Jourdain also had some advice for potential winners in the event that the ticket was indeed purchased by a group.

"Make sure you have a signed agreement between the group members," he said, "because when the winnings get big, things get interesting."

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FOXNews.com's Mariel Bird and The Associated Press contributed to this report.