Place:Petroleum, Montana, United States

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NamePetroleum
Alt namesPetroleumsource: Getty Vocabulary Program
TypeCounty
Located inMontana, United States     (1925 - )
See alsoFergus, Montana, United StatesParent county (source: Source:Population of States and Counties of the United States: 1790-1990)
Contained Places
Inhabited place
Cat Creek
Flatwillow
Kelley
Teigen
Winnett
Woods Place
source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


the text in this section is copied from an article in Wikipedia

Petroleum County is a county in the U.S. state of Montana. As of the 2020 census, the population was 496, making it the least populous county in Montana and the eighth-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.

Contents

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Timeline

Date Event Source
1916 Birth records recorded Source:Red Book: American State, County, and Town Sources
1925 County formed Source:Red Book: American State, County, and Town Sources
1925 Court records recorded Source:Red Book: American State, County, and Town Sources
1925 Land records recorded Source:Red Book: American State, County, and Town Sources
1925 Marriage records recorded Source:Red Book: American State, County, and Town Sources
1925 Probate records recorded Source:Red Book: American State, County, and Town Sources
1930 First census Source:Population of States and Counties of the United States: 1790-1990
1930 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990
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Population History

source: Source:Population of States and Counties of the United States: 1790-1990
Census Year Population
1930 2,045
1940 1,083
1950 1,026
1960 894
1970 675
1980 655
1990 519
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Research Tips

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External links

www.rootsweb.com/~mtpetrol/

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