Petroleum County was founded in the year 1924. Located in the Montana state of United States, it extends over an extensive area of 1,674 sq mi. The county is home to near around 490 people along with a mere 211 households and 136 families. Its county seat is called Winnett and largest city is the same.

The mindboggling presence of White, Black, Native Americans, African American, Pacific Islanders, Hispanics or Latinos, English, German, Asian, Irish and the likes suggests that the living condition, other facilities and infrastructures are well suited to them.

To get a comprehensible impact on your lineal chronology, it is imperative to explore the hidden clues and concealed truths. This online Petroleum County index repository is consecrated to help you access different records and information including marriage and divorce details, World War I and II information, demise documents, obituary notice, burial and cemetery details, origin and birth details, census data, immigration and naturalization specifics, marriage volume number, American Civil War history, real estate and property documents, land and estate data, war and enlistment data, last will or probate specifics, civil court case lookups and the likes. Help yourself to explore the mammoth database and get hold of significant clues to solve plenty of historical, socio-economic and genealogical queries.