When a group of guys from Kalispell, Montana, arrived in the oil patch, they didn’t find many places to eat. So instead of looking for jobs, they opened a BBQ shack. The 4P is located along a mostly deserted stretch of Highway 23 in Keene, North Dakota. Its surroundings are humble: Tucked inside a small, green building is a pair of plastic picnic tables, some beat-up beige carpet and a fridge that looks older than the young men working there.