| Gas Station | Regular | Plus | Premium | Diesel |
 | Caseys
831 S Main St, Monmouth, IL 61462
Get Directions | $3.799 | N/A | N/A | N/A |
| Ayers Oil
605 N Main St, Monmouth, IL 61462
Get Directions | $3.689 | N/A | N/A | N/A |
| Becks Express Mart
1198 N Main St, Monmouth, IL 61462
Get Directions | $3.849 | $3.689 | $4.259 | N/A |
| Caseys
1112 W Broadway, Monmouth, IL 61462
Get Directions | $3.939 | N/A | N/A | N/A |
| Super Pantry
1010 N Main St, Monmouth, IL 61462
Get Directions | $3.899 | $3.899 | N/A | $3.999 |
 | Cenex
301 E Broadway St, Alexis, IL 61412
Get Directions | $3.959 | N/A | N/A | $4.039 |
| Caseys
160 W Penn Ave, Roseville, IL 61473
Get Directions | $3.799 | N/A | N/A | N/A |
| Fast Stop (growmark)
764 90th St, Roseville, IL 61473
Get Directions | $3.799 | N/A | N/A | N/A |
 | Sinclair
Highway 94 & Highway 34, Biggsville, IL 61418
Get Directions | N/A | N/A | N/A | $3.949 |
| Unbranded
500 N Monroe St, Abingdon, IL 61410
Get Directions | $3.639 | N/A | N/A | N/A |
| Marathon
401 N Monroe St, Abingdon, IL 61410
Get Directions | $3.999 | N/A | $3.839
Lowest Price | $4.159 |
| Caseys
101 S Monroe St, Abingdon, IL 61410
Get Directions | $3.739 | N/A | N/A | N/A |
 | BP
275 S Academy St, Galesburg, IL 61401
Get Directions | $3.699 | $3.959 | N/A | N/A |
| Thorntons
1487 N Henderson St, Galesburg, IL 61401
Get Directions | $3.939 | N/A | $3.929 | N/A |
 | Circle K
877 E Main St, Galesburg, IL 61401
Get Directions | $3.959 | $3.699 | N/A | $3.899
Lowest Price |
 | Phillips 66
711 Us Highway 150 E, Galesburg, IL 61401
Get Directions | $3.939 | $3.879 | $4.099 | $3.999 |
| Becks Express Mart
1581 E Main St, Galesburg, IL 61401
Get Directions | $3.739 | $3.589
Lowest Price | N/A | $3.899 |
| Ayers Oil
1672 N Henderson St, Galesburg, IL 61401
Get Directions | $3.599 | N/A | N/A | $3.899 |
| Hy-Vee
2110 E Main St, Galesburg, IL 61401
Get Directions | $3.589
Lowest Price | $4.129 | N/A | $3.899 |
| Express Lane (il/Ia)
1975 Grand Ave, Galesburg, IL 61401
Get Directions | $3.619 | N/A | N/A | N/A |