Petroleum County is in North Central Montana. Of the 56 counties in the Treasure State, Petroleum County is 42nd in terms of its size (1,674 square miles). Recent listings of ranches for sale in Montana's Petroleum County totals approximately 2,000 acres and a combined market value of about $3 million. By overall acreage, recreational property is the most common type of land for sale in Petroleum County. The average price of ranches for sale in Petroleum County was $2 million. The economy here is largely agricultural. Common game species to be found on ranches for sale in Petroleum County include elk, mule deer, whitetail deer, deer and bear. For anglers the rivers and lakes on Petroleum County ranches for sale are stocked with fish including trout, pike, walleye, catfish, bass and salmon. Browse all Montana ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg.