FANDOM


Petroleum

Petroleum is one of the 56 counties in the state of Montana. It was created in 1925 from part of Fergus county. As of the 2010 census, the population was 494. The county seat is Winnett. The county has 1,674 square miles of area.

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.