Meyer Oil and its Mach 1 chain of convenience stores is a family-owned and -operated company serving communities across central and southern Illinois and Indiana.
For benchmarking purposes, store counts are as of Jan. 1, 2026.
| Headquarters: | Teutopolis, Illinois |
|---|---|
| No. of Stores: | 25 |
| Rank: | 197 |
| Website: | https://mach1stores.com/ |