Petroleum County :: 302 East Main :: Post Office Box 226 :: Winnett, MT 59087-0226 :: (406) 429-5551

Welcome to Petroleum County, Montana

Petroleum County
302 East Main
Post Office Box 226
Winnett, MT 59087-0226
P: (406) 429-5311 County Manager
P: (406) 429-5551 Treasurer, County Superintendent of Schools
P: (406) 429-5231 Assessor
F: (406) 429-6328

Hours:
8:00am – 12:00 noon,
1:00 pm-5:00pm,
closed 12:00 noon-1:00 pm for lunch

Montana State Holidays

Click to view a list of legal holidays and the dates they are observed


Montana Code Annotated

Click to view the MCA - Montana Code Annotated


Montana Association of Counties

Click to view MACO - Montana Association of Counties