Total production of oil in North Dakota in 2018 set a record as did the average daily production. Prices have recovered from their low which means the value of that production is going up but not yet close to setting a record.
All of the following data is from a spreadsheet I maintain, with the raw data pulled from various reports published by the North Dakota Department of Mineral Resources.
Average daily production rose to 1,249,049 bopd in 2018, up from 1,081,543 bopd in 2017. That is an increase of 167,505 bopd, or 15.5%. Previous record was 1,184,009 bopd in 2015.
Average daily production:
Total production for the year was 455,902,738 barrels, an increase of 61.1M barrels over the 394.8M produced in 2017.
Total production over the years: