| Warning Letter — Rantz Country Express | 631344 Apr 19, 2022 |
| Warning Letter — THE CORNER | 631494 Apr 19, 2022 |
| Warning Letter — Everyday / Conoco | 631312 Apr 14, 2022 |
| Warning Letter — Crown Mart / Bp | 631171 Apr 14, 2022 |
| Warning Letter — Phillips 66 / Petro-Mart | 630963 Apr 12, 2022 |
| Warning Letter — Quickstop | 630898 Apr 12, 2022 |
| Warning Letter — PETRO-MART / PHILLIPS 66 | 631875 Apr 12, 2022 |
| Warning Letter — Cenex / Tobacco Outlet | 630893 Apr 12, 2022 |
| Warning Letter — QuikTrip 654 | 630895 Apr 12, 2022 |
| Warning Letter — Hy-Vee | 630902 Apr 12, 2022 |
| Warning Letter — Berkley Petro Mart 72 | 630899 Apr 12, 2022 |
| Warning Letter — Phillips 66 | 630894 Apr 12, 2022 |
| Warning Letter — HANLEY MOBIL | 630901 Apr 12, 2022 |
| Warning Letter — Family Dollar | 630896 Apr 12, 2022 |
| Warning Letter — Ross Fuel Center | 630961 Apr 12, 2022 |
| Warning Letter — CIRCLE K #1617 | 630579 Apr 7, 2022 |
| Warning Letter — Champs 98 | 630694 Apr 7, 2022 |
| Warning Letter — VP Racing Fuels | 630692 Apr 7, 2022 |
| Warning Letter — Phillips 66 | 630580 Apr 7, 2022 |
| Warning Letter — Bee Line Snack Shop / Sinclair 9 | 630768 Apr 7, 2022 |
| Warning Letter — Vinh's Convenient Store | 630581 Apr 7, 2022 |
| Warning Letter — CHARLIE'S FOOD MART | 630689 Apr 7, 2022 |
| Warning Letter — White Oak Station | 630426 Apr 5, 2022 |
| Warning Letter — Shell / Snack Shop | 630454 Apr 5, 2022 |
| Warning Letter — Phillips 66 | 630453 Apr 5, 2022 |
| Warning Letter — Stuckey's / Phillips 66 | 630427 Apr 5, 2022 |
| Warning Letter — 7-Eleven | 630452 Apr 5, 2022 |
| Warning Letter — Nice-Pak Products, LLC | 622087 Mar 31, 2022 |
| Warning Letter — 7-Eleven #29027 | 630172 Mar 31, 2022 |
| Warning Letter — Energy Express/Phillips 66 | 630387 Mar 31, 2022 |
| Warning Letter — Hy-Vee | 630299 Mar 31, 2022 |
| Warning Letter — Discount Smoke & Liquor Supermarket | 630235 Mar 31, 2022 |
| Warning Letter — Circle K 1672 | 630386 Mar 31, 2022 |
| Warning Letter — Circle K/Phillips 66 | 629973 Mar 29, 2022 |
| Warning Letter — Rapid Robert's #123 | 629977 Mar 29, 2022 |
| Warning Letter — Circle K / Phillips 66 | 629976 Mar 29, 2022 |
| Warning Letter — Phillips 66 | 629974 Mar 29, 2022 |
| Warning Letter — Walgreens | 629975 Mar 29, 2022 |
| Warning Letter — A-1 Liquor | 629578 Mar 24, 2022 |
| Warning Letter — Kingshighway Mobil | 629722 Mar 24, 2022 |
| Warning Letter — Crown Food Mart | 629720 Mar 24, 2022 |
| Warning Letter — BP / Crown Mart Convenience | 629721 Mar 24, 2022 |
| Warning Letter — AJ Gas & Market | 629598 Mar 24, 2022 |
| Warning Letter — Your Corner Market | 629718 Mar 24, 2022 |
| Warning Letter — FAMILY DOLLAR | 629719 Mar 24, 2022 |
| Warning Letter — Hazelwood Discount Liquor | 629469 Mar 22, 2022 |
| Warning Letter — Phillips 66 / Gas N Go | 629466 Mar 22, 2022 |
| Warning Letter — Thoele Convenience Store / Mobil | 629468 Mar 22, 2022 |
| Warning Letter — MOBIL #5 | 629467 Mar 22, 2022 |
| Warning Letter — Town & Country Supermarket | 629026 Mar 17, 2022 |