Civilian Labor Force in Petroleum County, MT was 291.00000 Persons in March of 2024, according to the United States Federal Reserve. Historically, Civilian Labor Force in Petroleum County, MT reached a record high of 419.00000 in November of 1999 and a record low of 168.00000 in March of 2002. Trading Economics provides the current actual value, an historical data chart and related indicators for Civilian Labor Force in Petroleum County, MT - last updated from the United States Federal Reserve on May of 2024.