SENTINEL BUTTE (AP) - A service station that runs on the honor system here is changing hands but not its policy.

Owner Albert "Buzz" Olson is turning over Olson's Service to his eldest son, Rick, who also is the town's mayor.

The station is the biggest business in the town of about of about 60 near the Montana border. It doesn't accept credit cards but goes by the honor system for its customers.

Buzz Olson said customers can use a key to fill up "whether we're here or not."

The station is open from 6:30 a.m. to 1 p.m. Monday through Friday.

After hours, when the store is locked, locals who get gas write down the amount they owe and put their payment in a slot by the door.

"I want to continue having the honor system so we have it open to people 24 hours a day," Rick Olson said. "It's the availability that helps us retain customers and is why we've stayed in business."

The Olsons say it's rare when someone doesn't pay their bill.

Rick Olson said there are about 80 keys in the community for the pumps.

It's a second retirement for Buzz, who retired as postmaster in 1996 after 30 years.

He bought the station in 1989 while still doing his post office job. His wife, Delores, kept the place open until he got off work.

The couple have four children and eight grandchildren.

"Rick is taking over because he has loved this place for years and it was time for us to quit," Buzz Olson said.

The station has up to 20 customers daily.

"It's not a money-making business," Buzz Olson said.

People gather at the station to drink coffee and chat.

"This is a community gathering space," Buzz Olson said. "It's not about the money."