Top ten fields for oil production in 2018 Kansas total production for 2018 was 34,707,978 barrels. The production from the top ten fields (4,753,896 barrels) amounted to about 14% of the state's total, up from 12% in 2017. Algeria. Algeria produced just over 1.7 million barrels of oil per day in 2014 to maintain its position among the top tier of African oil producers. However, 2014 marks the second consecutive year of falling production in the country, amounting to a total of more than 150,000 barrels per day of lost production. The 5 Companies Dominating the Bakken Shale Play ascended to the positon as a top producer in the Bakken in late 2014 after paying $6 billion to acquire rival Kodiak Oil & Gas. However, the