Northern Natural Gas CompanyWrite a Review218-729-7220Be the first to review!Duluth, MN 55803Hi there!Be the first to review!5First-class4Better than most3About what I expected2Not the worst...1DisappointingClick to RateMore Business InfoHoursDo you know the hours for this business?Other Linkhttp://www.northernnaturalgas.com/pages/default.aspxCategoriesGas Companies, Pipe Line Companies Suggest an Edit