About Petroleum County Fair

The Petroleum County Fair in Winnett celebrates Montana's least populous county — with only a few hundred residents, Petroleum County's cattle ranching families are spread across a vast central Montana badlands and prairie landscape along the Musselshell River, where the annual fair is one of the only events that brings the county's scattered population together.

What to Expect

Expect a very small fair with livestock exhibits, 4-H competitions, and the authentic frontier spirit of one of America's most remote and sparsely populated counties.

Visitor Tips

Winnett is accessible via US-191 in central Montana. The surrounding Musselshell River badlands offer exceptional wildlife viewing, including pronghorn antelope, mule deer, and golden eagles. The county's remoteness and the extraordinary night skies over the empty prairie attract stargazers from across the region.

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