'Petroleum County' definitions:
Petroleum -- U.S. County in Montana
From: Gazetteer 2000
Name :
Petroleum -- U.S. County in Montana
Population (2000) :
493
Housing Units (2000) :
292
Land area (2000) :
1653.903684 sq. miles (4283.590695 sq. km)
Water area (2000) :
20.110830 sq. miles (52.086808 sq. km)
Total area (2000) :
1674.014514 sq. miles (4335.677503 sq. km)
Located within :
Montana (MT), FIPS 30
Location :
47.000478 N, 108.290051 W