| Warning Letter — Rhodes 101 | 512888 Dec 15, 2016 |
| Warning Letter — Fast Lane / Shell | 513007 Dec 15, 2016 |
| Warning Letter — Dollar General | 513083 Dec 15, 2016 |
| Warning Letter — 214 Liquor | 513137 Dec 15, 2016 |
| Warning Letter — Flying J | 513000 Dec 15, 2016 |
| Warning Letter — Phillips 66 / Convenience Barn | 512972 Dec 15, 2016 |
| Warning Letter — Casey's General Store | 513018 Dec 15, 2016 |
| Warning Letter — Family Dollar | 512909 Dec 15, 2016 |
| Warning Letter — Bp Shop | 512910 Dec 15, 2016 |
| Warning Letter — Snappy Mart | 512908 Dec 15, 2016 |
| Warning Letter — Hannaha's General Store | 513123 Dec 15, 2016 |
| Warning Letter — Gier Oil Company Inc | 513080 Dec 15, 2016 |
| Warning Letter — Nomax, Inc. | 512566 Dec 15, 2016 |
| Warning Letter — Casey's General Store | 513108 Dec 15, 2016 |
| Warning Letter — Xpress Mart | 513006 Dec 15, 2016 |
| Warning Letter — Break Time | 513067 Dec 15, 2016 |
| Warning Letter — 7-Eleven #30285 | 513026 Dec 15, 2016 |
| Warning Letter — Casey's General Store | 512448 Dec 8, 2016 |
| Warning Letter — Barney's Gas & Mini-Mart | 512500 Dec 8, 2016 |
| Warning Letter — Underwood Express Mart | 512324 Dec 8, 2016 |
| Warning Letter — Phillips 66 | 512144 Dec 8, 2016 |
| Warning Letter — C&C Store | 512244 Dec 8, 2016 |
| Warning Letter — Country Mart | 512401 Dec 8, 2016 |
| Warning Letter — Penny Saver Grocery | 512362 Dec 8, 2016 |
| Warning Letter — Gerbes | 512568 Dec 8, 2016 |
| Warning Letter — 7-Eleven | 512546 Dec 8, 2016 |
| Warning Letter — Phillips 66/Midwest Petroleum | 512246 Dec 8, 2016 |
| Warning Letter — Crown Food Mart/Phillips 66 | 512412 Dec 8, 2016 |
| Warning Letter — Anything & Everything | 512544 Dec 8, 2016 |
| Warning Letter — Phillips 66 | 512057 Dec 8, 2016 |
| Warning Letter — QuikTrip | 512051 Dec 8, 2016 |
| Warning Letter — On The Run | 512145 Dec 8, 2016 |
| Warning Letter — Sportsman's | 512138 Dec 8, 2016 |
| Warning Letter — Liquor Hub | 512499 Dec 8, 2016 |
| Warning Letter — HWY 28 Discount Foods | 512501 Dec 8, 2016 |
| Warning Letter — Casey's General Store | 512410 Dec 8, 2016 |
| Warning Letter — Family Dollar | 512386 Dec 8, 2016 |
| Warning Letter — Fowler's ZX | 512109 Dec 8, 2016 |
| Warning Letter — Mobil | 512545 Dec 8, 2016 |
| Warning Letter — QuickTrip | 511642 Dec 1, 2016 |
| Warning Letter — Adelaide Food Market | 511326 Dec 1, 2016 |
| Warning Letter — Philipps 66 / Petro Mart | 511514 Dec 1, 2016 |
| Warning Letter — Casey's General Store | 511355 Dec 1, 2016 |
| Warning Letter — GasTrip | 511354 Dec 1, 2016 |
| Warning Letter — Cool Smoke | 511327 Dec 1, 2016 |
| Warning Letter — Rapid Robert's | 511618 Dec 1, 2016 |
| Warning Letter — Click's Route 66 General Store | 511644 Dec 1, 2016 |
| Warning Letter — Fas-Trip #107 | 511598 Dec 1, 2016 |
| Warning Letter — Fas Trip | 511324 Dec 1, 2016 |
| Warning Letter — Valley Deli | 511385 Dec 1, 2016 |