Petroleum County was created on 1926 and was formed from Chouteau County, Teton County. The county was named for production of petroleum at Cat Creek. The county seat is Winnett.
Petroleum County is bordered by Phillips County (north), Garfield County (east), Rosebud County Musselshell County (south), Fergus County (west)
Cities and Towns in Petroleum County include Winnett.
The Official Petroleum County Government Website is located at http://www.maco.cog.mt.us/Counties/PETROLEUM.htm .
Below is a list of Petroleum County Genealogical and Historical Socities, Mail-List, Libraries and Archives Addresses and/or Links. See Also Montana Archives, Genealogical and Historical Societies for statewide Addresses and links.
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Below is a list of online resources for Petroleum County Court, Probate, Land or Tax Records Records EMAIL US with websites links to Petroleum County Court Records
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Below is a list of online resources for Petroleum County Birth, Marriage, Divorce and Death Records Records. EMAIL US with websites links to Petroleum County Vital Records
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Below is a list of online resources for Petroleum County Census Records. Email us with websites containing Petroleum County Census Records by clicking the link below:
Below is a list of online resources for Petroleum County Census Records. EMAIL US with websites links to Petroleum County Census Records.
1870 Petroleum County Census Records
1880 Petroleum County Census Records
1890 Petroleum County Census Records
1900 Petroleum County Census Records
1910 Petroleum County Census Records
1920 Petroleum County Census Records
1930 Petroleum County Census Records
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There are many churches and cemeteries in Petroleum County. Some transcriptions are online. A great site is the Petroleum County Tombstone Transcription Project.
Below is a list of online resources for Petroleum County Cemetery & Church Records. EMAIL US with websites links to Petroleum County Cemetery & Church Records.
The following cemeteries and churches are listed in the US Geological Survey web site as being in this County. And there are more not listed.
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Below is a list of online resources for Petroleum County Cemetery & Church Records. EMAIL US with websites links to Petroleum County Cemetery & Church Records.