| Warning Letter — Freds | 534893 Aug 10, 2017 |
| Warning Letter — BP/Country Market Express | 534514 Aug 10, 2017 |
| Warning Letter — Garfield 66 | 533900 Aug 3, 2017 |
| Warning Letter — Phillips 66 | 534124 Aug 3, 2017 |
| Warning Letter — Kum & Go #0467 | 534126 Aug 3, 2017 |
| Warning Letter — Aqueous Vapor | 534128 Aug 3, 2017 |
| Warning Letter — Cenex/Hitch N Post | 534355 Aug 3, 2017 |
| Warning Letter — Champion Express | 533983 Aug 3, 2017 |
| Warning Letter — Cenex/5K's Convenience | 534300 Aug 3, 2017 |
| Warning Letter — BP/SHOP | 534132 Aug 3, 2017 |
| Warning Letter — Town & Country Supermarket | 534221 Aug 3, 2017 |
| Warning Letter — Casey's | 533817 Aug 3, 2017 |
| Warning Letter — Family Heart Mini Market | 534118 Aug 3, 2017 |
| Warning Letter — Stacy's Market & Grill | 534133 Aug 3, 2017 |
| Warning Letter — Main Street Grocery | 533503 Jul 27, 2017 |
| Warning Letter — Vapor Maven | 533298 Jul 27, 2017 |
| Warning Letter — MUSE VAPE | 533494 Jul 27, 2017 |
| Warning Letter — Joji's Quick Shop | 533565 Jul 27, 2017 |
| Warning Letter — Walt's | 533446 Jul 27, 2017 |
| Warning Letter — Pyro City Fireworks/Rocket Shop | 533447 Jul 27, 2017 |
| Warning Letter — Harter House | 533177 Jul 20, 2017 |
| Warning Letter — Lakeway 1 Stop | 533069 Jul 20, 2017 |
| Warning Letter — Cenex / Tobacco Outlet | 533068 Jul 20, 2017 |
| Warning Letter — Mobil | 532919 Jul 20, 2017 |
| Warning Letter — Road Star/On The Go | 532906 Jul 20, 2017 |
| Warning Letter — Wal-Mart | 532927 Jul 20, 2017 |
| Warning Letter — Speedway Market | 532907 Jul 20, 2017 |
| Warning Letter — 7Th Heaven / BP | 532924 Jul 20, 2017 |
| Warning Letter — Dollar General | 532905 Jul 20, 2017 |
| Warning Letter — Casey's General Store | 532652 Jul 13, 2017 |
| Warning Letter — Gier Oil Company Inc | 532546 Jul 13, 2017 |
| Warning Letter — City Star | 532351 Jul 13, 2017 |
| Warning Letter — Schnucks | 532352 Jul 13, 2017 |
| Warning Letter — Whats Up Dock | 532573 Jul 13, 2017 |
| Warning Letter — Dollar General | 532540 Jul 13, 2017 |
| Warning Letter — Dollar General | 532543 Jul 13, 2017 |
| Warning Letter — Discount Smokes & Liquor | 532331 Jul 13, 2017 |
| Warning Letter — Joe Bald Market | 532575 Jul 13, 2017 |
| Warning Letter — Food Mart/Shell | 532606 Jul 13, 2017 |
| Warning Letter — Casey's General Store | 532651 Jul 13, 2017 |
| Warning Letter — Express Mart/Phillips 66 | 532488 Jul 13, 2017 |
| Warning Letter — Vapor/St. Louis Vapor | 532605 Jul 13, 2017 |
| Warning Letter — Gier Oil Company Inc | 532550 Jul 13, 2017 |
| Warning Letter — Kidd's | 532213 Jul 6, 2017 |
| Warning Letter — DQ Grill & Chill/Valero | 528570 Jul 6, 2017 |
| Warning Letter — Platte Valley Fastgas | 528529 Jul 6, 2017 |
| Warning Letter — Irie Star, LLC | 524242 Jul 6, 2017 |
| Warning Letter — Phillips 66/Minit Mart | 528165 Jun 29, 2017 |
| Warning Letter — Fastrip | 528300 Jun 29, 2017 |
| Warning Letter — Sportsman's Corner | 528299 Jun 29, 2017 |