North Dakota said Thursday that production of crude oil fell in January from all-time highs the previous month amid a slide in global oil prices. The state, which has become second only to Texas in oil production due to a boom in hydraulic fracturing of Bakken Shale oil, said its crude output fell 3.3% on the month to 1.19 million barrels a day in January, down from a record 1.23 million barrels a day in December. “We’re going to see some months of declining production,” Lynn Helms, director of the department of mineral resources, told reporters at a news conference. “It’s really mostly about oil prices,” he said. Prices for Bakken sweet crude fell to a six-year low of an average of $31.41 a barrel in January, down from $40.74 a barrel in December. As a result, the number of completions of previously drilled wells in North Dakota fell sharply to 47 in January, down from 183 in December.