Low oil prices haven’t yet dimmed confidence in North Dakota, though there may be concerns lingering over the mid-term horizon, those on the ground said. Oil prices have remained above what some consider the floor price for the recent downturn, trading in recent sessions above the $50 per barrel mark for West Texas Intermediate crude oil. That’s more than 18 percent above late January lows, but still 50 percent less than June prices, forcing many in the industry to lay off staff and cut spending on exploration and production. Oil prices are down in part because of a weakened global economy and a market swing to the supply side. Oil produced from U.S. shale, like the Bakken formation in North Dakota, is behind some of the momentum. […]