Petroleum County, Montana
Petroleum County is a county found in the U.S. state of Montana. As of the 2010 United States Census, 494 people lived there, 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 part from Fergus County to become the last of Montana's 56 counties to be organized.
Petroleum County Courthouse in Winnett
Location within the U.S. state of Montana
Montana's location within the U.S.
|Named for||Petroleum fields|
|• Total||1,674 sq mi (4,340 km2)|
|• Land||1,655 sq mi (4,290 km2)|
|• Water||19 sq mi (50 km2) 1.1%%|
| • Estimate |
|• Density||0.3/sq mi (0.1/km2)|
|Time zone||UTC−7 (Mountain)|
|• Summer (DST)||UTC−6 (MDT)|
- "State & County QuickFacts". US Census Bureau. Archived from the original on July 16, 2011. Retrieved September 16, 2013.
- "Top 10: Least Populous Counties, During the Period of 2005-2009". PolicyMap. February 28, 2011. Retrieved July 7, 2013.
- "Find a County". National Association of Counties. Retrieved June 7, 2011.
- Ellie Arguimbau; Ellen Baumler; Charlene L. Porsild; Brian Shovers (2009). Montana Place Names: From Alzada to Zortman. Montana Historical Society. p. 204. ISBN 978-0-9759196-1-3.
- Soils Industry, pp. 1-2