The number of rigs actively exploring for or producing oil or natural gas in North Dakota is down to its lowest level in nearly five years, data show Friday. State data show 111 active rigs in the state as of Friday, down from the 191 reported on this date in 2014 and a historic low. Rig counts, a barometer for the upstream sector in the state, have been on a steady decline for much of the year, down 7.5 percent from the end of February. The North Dakota Industrial Commission in its latest monthly report said oil production in January, the last full month for which data are available, was 1.19 million […]