Of 56 counties in the Treasure State, Petroleum County is 42nd in terms of its size (1,674 square miles). Petroleum County is in North Central Montana. The total value of 1,000 acres of hunting land recently listed for sale in Montana's Petroleum County was roughly $300,000. Browse all Petroleum County hunting land for sale on the Land Network to find the hunting tract that suits your hunting and outdoor-recreation interests, whether you're an individual looking to invest in hunting land for future use or commercial operation looking for land on which to expand your hunting business. By overall acreage, farms is the most common type of land for sale in Petroleum County.