BISMARCK, N.D. (AP) — State data show North Dakota oil drillers produced a record 313.5 million barrels of crude in 2013, about 70 million more barrels than the record set a year earlier.
State Mineral Resources Director Lynn Helms says North Dakota produced an average of 923,227 barrels of oil daily in December. He says the monthly total of 28.6 million barrels was down from 29.2 million barrels in November.
Helms says worse-than-normal winter weather in December caused the slowdown in oil production for the month.
December production figures were the latest available, because oil production numbers typically lag at least two months.