| AHS CUSHING HOSPITAL, LLC - DBA HILLCREST HOSPITAL CUSHING | Hazardous waste | — | — | — | No Violation Identified |
| AKL SERVICES | Hazardous waste | — | — | — | No Violation Identified |
| ALLIANCE TANK SERVICE LLC / CUSHING FACILITY | Air | — | — | — | No Violation Identified |
| AXIOS INDUSTRIAL MAINTENANCE CONTRACTORS, INC. | Hazardous waste | — | — | — | No Violation Identified |
| BARCAS ENERGY ENTERPRISES LLC / CUSHING WEST TERMINAL | Air | 1 | — | — | No Violation Identified |
| BP PIPELINES CUSHING METER STATION | Hazardous waste | — | — | — | No Violation Identified |
| CONOCO PIPELINE CO /CUSHING STA | Air, Water, Hazardous waste, Drinking water | — | — | — | No Violation Identified |
| CROWN ENERGY CO / PATTERSON GILBERT JOYCE | Air | — | — | — | No Violation Identified |
| CUSHING BATCH PLANT | — | — | — | — | — |
| CUSHING CITY OF/MUNICIPAL ELEC PWR S | Air | 3 | — | — | No Violation Identified |
| CUSHING TERMINAL | Air, Hazardous waste | 2 | — | — | No Violation Identified |
| CUSHING, CITY OF - SOUTH STP | Water | 7 | 3 | $35,000 | No Violation Identified |
| DEEPROCK ENERGY RESOURCES LLC / DEEPROCK DEVELOPMENT TERMINAL | Air | 1 | — | — | No Violation Identified |
| ENBRIDGE STORAGE CUSHING LLC / ALLIED STATION | Air | — | — | — | No Violation Identified |
| ENTERPRISE CRUDE PIPELINE LLC / CUSHING WEST TERMINAL | Air | 1 | — | — | No Violation Identified |
| EOTT PIPELINE (CUSHING) | Hazardous waste | — | — | — | No Violation Identified |
| EOTT PIPELINE (YALE) | Hazardous waste | — | — | — | No Violation Identified |
| ET CRUDE OIL TERMINALS LLC / CUSHING NORTH TANK FARM | Air | 2 | — | — | No Violation Identified |
| FORMER KERR-MCGEE REFINERY SITE, CUSHING, OK | Hazardous waste | — | — | — | No Violation Identified |
| GFL ENVIRONMENTAL SERVICES USA, LLC - CUSHING FACILITY | Hazardous waste | — | — | — | No Violation Identified |
| GRAND RIVER DAM AUTHORITY / CUSHING REPEATER AT CUSHING FACILITY | Air | — | — | — | No Violation Identified |
| GRANDSTAFF TERMINAL | Air | 2 | — | — | No Violation Identified |
| GREENFIELD ENVIRONMENTAL MULTISTATE TRUST LLC-CUSHING | Water | 8 | 1 | — | No Violation Identified |
| INTERTEK USA INC | Hazardous waste | — | — | — | No Violation Identified |
| KAMO POWER / CUSHING POP | Air | — | — | — | No Violation Identified |
| KEYSTONE GAS CORPORATION CUSHING COMPRESSOR S | Air | — | — | — | No Violation Identified |
| MAGELLAN PIPELINE C/CUSHING STA | Air, Hazardous waste | — | — | — | No Violation Identified |
| MAGELLAN TERMINAL HOLDINGS LP - CUSHING STATION | Air, Hazardous waste | 3 | — | — | No Violation Identified |
| MAGELLAN TERMINALS HOLDINGS, LP CUSHING CENTRAL | Hazardous waste | — | — | — | No Violation Identified |
| MAGELLAN TERMINALS HOLDINGS, LP CUSHING SOUTH TERMINAL | Hazardous waste | — | — | — | No Violation Identified |
| MAGELLAN TERML HOLD/SHINN PENCE TANK FAR | Air, Hazardous waste | 3 | — | — | No Violation Identified |
| MV PURCHASING LLC / CUSHING STATION | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / 6 ST CUSHING CELL TOWER CLLC10097892 | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / CUSHING TELECOMMUNICATION SITE | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / OK1865 CUSHING EAST | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / OKL01916 CUSHING 14744124 | Air | — | — | — | No Violation Identified |
| O'REILLY AUTO PARTS STORE 246 | Hazardous waste | — | — | — | No Violation Identified |
| OAK GROVE CHURCH-CL2 STATION WELL 1 | Drinking water | 3 | — | — | No Violation Identified |
| OAK GROVE SCHOOL-CHLORINATION STATION | Drinking water | 3 | — | — | No Violation Identified |
| PHILLIPS 66 PIPELINE BUXTON | Hazardous waste | — | — | — | No Violation Identified |
| PLAINS MARKETING LP/CUSHING TERML | Air | 2 | — | — | No Violation Identified |
| PLAINS TERMINAL & TRANSFER | Hazardous waste | — | — | — | No Violation Identified |
| REACTION ENVIRONMENTAL LLC | Hazardous waste | — | — | — | No Violation Identified |
| RETHERFORD CONSTRUCTION INC | Hazardous waste | — | — | — | No Violation Identified |
| SOUTH BOW (USA) LP - CUSHING FACILITY | Hazardous waste | — | — | — | No Violation Identified |
| SOUTHWESTERN BELL TELEPHONE CO DBA AT A / CUSHING CTL OFFICE R64113 | Air | — | — | — | No Violation Identified |
| STEWART STONE INC / NEW CUSHING QUARRY ROCK CRUSHING AND S | Air | — | — | — | No Violation Identified |
| STEWART STONE, INC.-CUSHING | Water | 3 | — | — | No Violation Identified |
| SUBMERSIBLE PUMPS, INC. | Hazardous waste | — | — | — | No Violation Identified |
| SUNOCO PIPELINE LP/LITTLE FARM CRUDE OI | Air, Hazardous waste | — | — | — | No Violation Identified |
| TALLGRASS PONY EXPRESS PIPELINE LLC / CUSHING METER FACILITY | Air | — | — | — | No Violation Identified |
| TALLGRASS TERMLS LLC / CUSHING SOUTH TANK FARM | Air | 1 | — | — | No Violation Identified |
| TEPPCO CRUDE CUSHING STATION | Hazardous waste | — | — | — | No Violation Identified |
| TIDAL CUSHING CRUDE TERMINAL | Air | 3 | — | — | No Violation Identified |
| TOM STACK LLC / BATTLE RIDGE PLANT | Air | — | 1 | — | No Violation Identified |
| TOM STACK LLC / GALLAGHER COMPRESSOR STATION | Air | — | — | — | No Violation Identified |
| TOWN AND COUNTRY DR/TOWN AND COUNTY DRY | Air, Hazardous waste | — | — | — | No Violation Identified |
| VICTORY ENERGY | Hazardous waste | — | — | — | No Violation Identified |
| WALMART SUPERCENTER #360 | Hazardous waste | — | — | — | No Violation Identified |
| WILDHORSE TERMINAL | Air, Water | 2 | — | — | No Violation Identified |