WILLISTON, N.D. – The entire U.S. Williston Basin produced more than 1 million barrels of oil per day in September, driven by another record month of North Dakota oil production. North Dakota produced 931,940 barrels per day, a 2 percent increase over August, according to preliminary numbers released Friday by the Department of Mineral Resources. The U.S. Williston Basin also includes portions of South Dakota, which produced 5,017 barrels per day in September, and Montana, which produced 75,460 barrels per day in August. ... Bakken oil production in North Dakota and Montana is projected to top 1 million barrels of...