Rainbow Gas Company Share: Natural Gas Rainbow Gas Company Visit Website 919 S 7th Street, Ste #405 Bismarck, ND 58502-0837 (701) 255-7970 255-7952 (fax) About Rep Info Map About Natural gas and electricity marketing company & oil and gas exploration and production. Whom to Contact Jolene Erdman Loren R. Kopseng What's Nearby? Distance: 5 10 15 20 25 50 mi.