Thank you for your consideration in the 5th Annual Best of the Bakken! MON-DAK HEATING & PLUMBING INC. MECHANICAL CONTRACTORS 620 E Broadway, Williston, ND 58801 (701) 572-3079 Thank you for your consideration in the 5th Annual Best of the Bakken! MON-DAK HEATING & PLUMBING INC. MECHANICAL CONTRACTORS 620 E Broadway, Williston, ND 58801 (701) 572-3079