Petroleum County, Montana

Petroleum County is a county in the U.S. state of Montana. As of the 2010 United States Census, the population was 494, making it the least populous county in Montana and the seventh-least populous in the United States. Its county seat is Winnett. The county's area was partitioned from Fergus County to become the last of Montana's 56 counties to be organized.

Petroleum County, Montana

Petroleum County is a county in the U.S. state of Montana. As of the 2010 United States Census, the population was 494, making it the least populous county in Montana and the seventh-least populous in the United States. Its county seat is Winnett. The county's area was partitioned from Fergus County to become the last of Montana's 56 counties to be organized.