Petroleum County on the map of Montana 2024. Cities, roads, borders and directions in Petroleum County of Montana.

Petroleum County is found in the central zone of Montana. This fantastic county is named after the production of petroleum at Cat Creek. The population of Petroleum County exceeds 1 thousand people. The county, formed on November 24, 1924, spans an area of 1654 square miles. The county seat of Petroleum County is Winnett. This map shows the borders of Petroleum County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Petroleum County.