The complete list of Missouri Natural Gas Operators phone numbers is currently under construction.
| Company Name | Phone Number |
| Albany Municipal Gas System | |
| Altenburg-Frohna Municipal Gas System | |
| Ameren UE | 800-552-7583 |
| Atmos Energy | 866-322-8667 |
| Bernie Municipal Gas System | 573-293-4454 |
| Bethany Municipal Gas System | 660-425-6711 |
| Bismark Municipal Gas System | |
| City Utilities of Springfield | 417-863-9000 |
| Clarence Municipal Gas system | |
| Cuba Municipal Gas System | Crawford Co. Dispatch (911) |
| Empire District Gas Company | 800-406-9220 |
| Fulton Municipal Gas System |
573-592-3180 or 911 (after hours) |
| Granby Municipal Gas System | 417-438-8599 |
| Grant City Municipal Gas System | 660-564-3369 or -2122 or 911 |
| Green City Municipal Gas System | |
| Hermann Municipal Gas System |
573-486-4500 or 573-486-2211(after hours) |
| Kennett Municipal Gas System | 573-888-2888 |
| Laclede Gas Company | 800-887-4173 |
| Liberal Municipal Gas System | |
| Macon Municipal Gas System | 660-385-2722 |
| Madison Municipal Gas System | 660-651-2897 or -9935 |
| Marshall Municipal Utilities | |
| Mercer Municipal Gas System | |
| Mid-Missouri Energy | |
| Milan Municipal Gas System | |
| Missouri Gas Energy | 800-582-0000 |
| Missouri Gas Utility | 800-927-0787 |
| Missouri Pipeline Company | |
| Monroe City Municipal Gas System | 573-735-4411 |
| Montgomery City Municipal Gas System |
573-564-3160 or 911 (emergency) |
| New Florence Municipal Gas System | |
| New Haven and Berger Municipal Gas System | 573-237-2616 |
| Oronogo Municipal Gas System | 417-483-9127 |
|
Paris Municipal Gas System |
660-327-5175 |
| Perry Municipal Gas System |
573-565-3131 (Daytime)573-565-3522 (Evening)636-345-1686 (Evening)911 for Emergencies |
| Perryville Municipal Gas System | 573-547-2594 |
| Plattsburg Municipal Gas System | 816-930-3777 |
| Potosi Municipal Gas System | 911 |
| Princeton Municipal Gas System | |
| Richland Municipal Gas System | 573-765-4421 |
| Shelbina Municipal Gas System | 573-588-2150 |
| Southern Missouri Natural Gas | 800-909-7642 |
| St. James Municipal Gas System | 573-265-3777 |
| St. Robert Municipal Gas System |
573-451-2000 Ext.1501 or 1502 or 573-336-3700 |
| Stanberry Municipal Gas System |
911 (emergency) |
| Toro Energy of Missouri, L.L.C. | |
| Trigen-Johnson Controls | |
| Unionville Municipal Gas System | |
| Waynesville Municipal Gas System |
573-774-5217 (M-F from 8-5) after hours: 911 |
| Wheaton Municipal Gas System | 417-652-3535 or 911 |
| Omega Pipeline Company, LLC | 911 (emergency) |
