If you are looking for summit utilities in missouri, please check our official links below: Summit Natural Gas Missouri https://summitnaturalgas.com/ Contact - Summit Utilities Inc. https://summitnaturalgas.com/contact Gallatin Field Office. 301 N Main St. | Gallatin, MO 64640. Fax: 660-663-3371. Toll Free: 1-800-927-0787 ; Business Hours. 8am - 5pm Mon-Fri ;...