Petroleum County (Montana)
Petroleum County as en county uun de US-ameerikoons bundesstoot Montana. At county leit uun a maden faan a bundesstoot. Det hee 496 lidj (2020). At hoodsteed faan't county as Winnett.

Histoore
At county wurd 1925 grünjlaanjen.

Kwelen

County uun Montana