Johnson Oil operates a regional collection of c-stores in Illinois and Iowa that range from kiosks to truck stops. Stores sell a varied selection of goods that ranges from tobacco products only to a full range of foodservice, convenience goods and propane. Johnson Oil Co., a private, family-operated company, is also a fuel distributor.
| Headquarters: | Rock Falls, Ill. |
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| No. of Stores: | 81 |
| Rank: | 85 |