| ALFADALE STOCK FARM | Water | — | — | — | Unknown |
| ALUMINUM TRAILERS INC / ALUMINUM TRAILERS INC | Air | — | — | — | No Violation Identified |
| AMERICAN TOWER ASSET SUB II LLC / EL RENO OK 307963 | Air | — | — | — | No Violation Identified |
| AMERICAN TOWERS LLC / EL RENO LUCKY STAR OK 36872 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / ANNETTE 1 23 26H | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / BOO BEAR PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / CROOKED NOSE LONE PINE PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / DEBBIE 32 29 12N 8W 1HX | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / EL RENO 1 35 26H | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / ELMENHORST 1 12 PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / ELMENHORST 1H 01 12 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / ELMENHORST 31 30 12N 6W 2MHX | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / FATBOY 29 32 12N 8W 3 4MHX REUTER 29 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / GLORIETTA 7 6 12 8 3 4MHX 6MH THOMPSON | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / GLORIETTA SUMMER MOON PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / GOLDEN SNITCH PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / GRANT MORTON LORENZEN ANDREW JEREMY PA | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / GREY SNOW LONE WOLF PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / HANNEMAN PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / JABRONI 13 12 13N 8W 1 2MHX PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / JENNIFER LAUREN 13 24 12 9 3MHX 5WHX P | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / KING JULIEN 15 12 7 1MH 2MH ROSEWOOD 1 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / LIMELIGHT 28 33 12N 8W 1MXH HUNT 28 33 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / LINDA 1 7H | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / LONE WOLF 35 26 12N 8W 1MHX 2MHX 3MHX | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / MIDNIGHT SUN 123 MHX CROOKED PINE 46 M | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / PAMUNKEY A PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / PAMUNKEY B PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / RED CLOUD 13 12N 8W PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / REGENA 1 24 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / RUSS 1 4H | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SAND BOULDER 19 30 12N 8W 2MXH PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SOUTHERN STAR 28 13N 7W | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SOUTHERN STAR D PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SOUTHERN STAR PAD B | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SUMMER MOON 11MH 9WHX VON TUNGELN 17 2 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SUMMER MOON 8 12N 8W PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SUMMER MOON B PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / SUMMER MOON C PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / THE DUCA 13 24 12N 9W 2MHX 4MHX PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / THE STAR B PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / THIS GUY 5 12N 8W PAD | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / VON TUNGELN 1H 20 | Air | — | — | — | No Violation Identified |
| BCE MACH LLC / ZUM 28 13 7 4MH PAD | Air | — | — | — | No Violation Identified |
| BRENNTAG SOUTHWEST EL RENO | Hazardous waste | — | — | — | No Violation Identified |
| C&J ENERGY SERVICES | Hazardous waste | — | — | — | No Violation Identified |
| CACTUS DRILLING CO/REFURBISHMENT YARD | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / BLACK KETTLE 1 2 3 4 5 PRODUCTION FACI | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / BROKEN BOW 1 2 3 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / CANNONBALL 1 2 JOHNSTON 4 5 VINITA 4 | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / CATTLEMANS 1207 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / CATTLEMANS 4 5 6 7 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / COWABUNGA 2 3 4 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / DEER CREEK 1209 36 1 1MXH | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / FIDDLE 1207 34 3 1WXH PRODUCTION FACIL | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / FNA 1207 26 23 1WXH JIM THORPE 1207 25 | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GARTH BROOKS 1107 6 7 1MXH JOHNSTON 31 | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GARTH BROOKS 2 3 4 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GERONIMO 1207 6 4WH 6 5MH PRODUCTION F | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GERONIMO 2MH PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GOURLEY 1 16H | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / GUTHRIE 1207 6 7 1MXH 2WXH 3MXH | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / HICKMAN 1109 10 15 1MXH PRODUCTION FAC | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / HMB 2 3 WATCH THIS 3 PRODUCTION FACILI | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / HUNT 2 3 4 5 6 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / HUNT 27 12 7 1H PAD | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / JAMES ROSS 1108 11 2 1 MXH JOHNNY BENC | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / JAMES ROSS 2 3 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / JAMES ROSS 4 5 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / MOUNT SCOTT 1207 4 9 1WXH COWABUNGA 12 | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / MOUNT SCOTT 2 3 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / MT SCOTT 4 5 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / PAUL HARVEY 1108 10 15 1MXH VINCE GILL | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / RAFTER J RANCH 1108 1 16MH | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / RED RIVER 1 2 3 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / SANDRA JEAN 1 34H | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / SAYONARA 2MH BROKEN BOW 4MXH 5WXH 6MXH | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / TENKILLER LAKE 1108 6 31 1MXH PRODUCTI | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / TOBY KEITH 1MXH 2MXH TENKILLER LAKE 4W | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / VINCE GILL 2 3 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / VINCE GILL 4 5 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / VINITA 1 2 3 JOHNSTON 2 3 PRODUCTION F | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / WATCH THIS 1 2 AND HMB1 PRODUCTION FAC | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / WATCH THIS 25 36 4WXH 5MXH HMB 1 12 13 | Air | — | — | — | No Violation Identified |
| CAMINO NATURAL RESOURCES LLC / WOODHOUSE 7 1H | Air | — | — | — | No Violation Identified |
| CIMARRON AIRCRAFT CORP / AIRPORT INDUSTRIAL PARK | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / BLTW COM 1H 2227X FACILITY | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / CAROLINE 1 5H | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / HALE 1 25H | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / LOUIS CENTRAL FACILITY | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / LYDIA 1 16H | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / MEIWES 1 25H | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / PETREE 2 13H | Air | — | — | — | No Violation Identified |
| COTERRA ENERGY OPERATING CO / WALBAUM 1 33H | Air | — | — | — | No Violation Identified |
| DCP OPERATING CO LP / REFORM BOOSTER STATION | Air | 1 | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / BLAND 29 13 8 1H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / C AND E 1 11H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / EUGENE 18 12 8 1H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / OLLIE 14 13N 7W 1H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / PORTER 32 13 8 1H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / ROBERTS 1 23H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / VOORHIES 34 12 9 1H | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / WANDA 3H 4H PAD | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / WHISTLE PIG 10 4AH | Air | — | — | — | No Violation Identified |
| DEVON ENERGY PRODUCTION CO LP / WILLIAMSON 2 12 9 1H | Air | — | — | — | No Violation Identified |
| DEVON GAS SVC LP/CANA GAS PLT | Air | 2 | 1 | $4,725 | No Violation Identified |
| DEXTER AXLES | Air, Hazardous waste | 1 | — | — | No Violation Identified |
| DIFFEE FORD LINCOLN MERCURY | Hazardous waste | — | — | — | No Violation Identified |
| DIFFEE FORD LINCOLN MERCURY | Hazardous waste | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / ALVERSTONE 1206 1LMH 17 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / ALVERSTONE 1206 2SMH 17 3LMH 17 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BAKER 1107 1SMH 4 4WH 4 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BAKER 1107 2SMH 4 3SMH 4 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BANFF 1207 1UMH 29 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BANFF 1207 2UMH 29 3LMH 29 5LMH 29 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BEECHAM HUNT 1307 1UMH 13 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / BROOKIE 1306 4LMH 18 5SMH 18 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / CUTBOW 1307 2UMH 26 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / CUTBOW 1307 4MH 26 5SMH 26 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / DENALI 1206 4UMH 20 5SMH 20 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / DENALI TANK BATTERY | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / DOLLY VARDEN 1307 1WH 26 CUTBOW 1307 1 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FAIRWEATHER 1207 1UMH 13 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FORAKER 1207 1SMH 11 2UMH 11 3WH 11 SA | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FORAKER 1207 4LMH 11 5WH 11 6UMH 11 7S | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FORAKER 1207 8UMH 11 9LMH 11 10UMH 11 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FUJI 1206 1SMH 19 2LMH 19 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / FUJI 1206 3UMH 19 4SMH 19 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / GREENBACK 1307 1LMH 35 2MH 35 3SMH 35 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / GREENBACK 1307 4LMH 35 5UMH 35 6SMH 35 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / HUBBARD 1207 1SMHX 28 2SMHX 28 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / HUBBARD 1207 3SMHX 28 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / KATMAI 1206 1UMH 29 1206 1WH 29 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / PASCAL 1307 1SMHX 15 10 2SMHX 15 10 | Air | — | — | — | No Violation Identified |
| DIVERSIFIED PRODUCTION LLC / SANFORD 1207 2LMH 2 3LMH 2A 4LMH 2 | Air | — | — | — | No Violation Identified |
| EL RENO BULK PLANT | Water | — | — | — | Significant Violation |
| EL RENO MUNICIPAL AUTHORITY | Water | 9 | 3 | $80,000 | No Violation Identified |
| EL RENO OFFICE | Hazardous waste | — | — | — | No Violation Identified |
| EL RENO STATION | Air, Hazardous waste | 1 | — | — | No Violation Identified |
| EL RENO TERM GRAIN CO / EL RENO GRAIN HANDLING FACILITY | Air | — | — | — | No Violation Identified |
| EL RENO WATER PLANT | — | 1 | — | — | — |
| ENERGY TRANSFER CRUDE MARKETING / EL RENO STATION | Air | 1 | — | — | No Violation Identified |
| ETP CRUDE LLC / EL RENO STATION | Air | — | — | — | No Violation Identified |
| EVANS DV THRU CLNR / 204 N BICKFORD EVANS DRIVE THRU | Air, Hazardous waste | — | — | — | No Violation Identified |
| EXPRESS RANCHES | Water | — | — | — | Violation Identified |
| FAMILY DOLLAR # 10759 | Hazardous waste | 1 | — | — | No Violation Identified |
| FEDERAL CORRECTION INSTITUTION | Hazardous waste, Drinking water | — | — | — | No Violation Identified |
| FLOGISTIX LP / FLOGISTIX EL RENO | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / BATTLE CRY PAD | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / BOMHOFF 20 12 7 PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / MARGARET PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / ROSEWOOD 16 12 7 1H 2H 3H PRODUCTION | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / TOMAHAWK PRODUCTION FACILITY | Air | — | — | — | No Violation Identified |
| FORMENTERA OPERATIONS / WILDS 6 12 6 1H MANNING 31 13 6 1H PR | Air | — | — | — | No Violation Identified |
| FRONTIER CHEVROLET CO | Hazardous waste | — | — | — | No Violation Identified |
| FRONTIER USED CAR SALES | Hazardous waste | — | — | — | No Violation Identified |
| FW MIDCON I LLC / BARBARA ANN 1 3H | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / BOHLMAN 1H 34X | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / BOHOO AND NONOMA 1 BIA 1307 1 6 7WXH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / BRODERSEN 1307 1 25WH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / CALVIN S 1307 1 16MH 2 16MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / CALVIN S 1307 3 16MH 4 16MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / DAVIS 1206 1 16MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / FUNK 1307 1 36MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / FUNK 1H 27 PARKER 1H 23 | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / HAYS RANCH 1 33H | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / HUNT 1307 1 29 20WH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / JANEYS PAD 1307 1 30 31MXH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / JAYMI 1H 12 JENNIFER 1H 35X | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / MCKINNEY 1207 1 35 | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / OYLER 2 24MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / PORTER 1307 1 22WH 2 22MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / SIEGRIST 1307 1 9MH 2 9WH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / SIEGRIST 1307 2 9MH 3 9MH 3 9WH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / SIEGRIST 1307 4 9MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / VON SALON 1307 1 32 5MXH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / WEHMULLER 1307 2 19MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / WILDS 1207 1 1MH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / ZUM MALLEN 1307 1 21WH | Air | — | — | — | No Violation Identified |
| FW MIDCON I LLC / ZUM MALLEN 1307 2 21MH | Air | — | — | — | No Violation Identified |
| GEMINI COATINGS INC | Air, Hazardous waste | 2 | 1 | — | Violation Identified |
| GERBER COLLISION & GLASS - EL RENO | Hazardous waste | — | — | — | No Violation Identified |
| GIBSON AVIATION | Hazardous waste | — | — | — | No Violation Identified |
| IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | Air | 1 | — | — | No Violation Identified |
| IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | Air | 1 | — | — | No Violation Identified |
| JENSEN FARMS, INC. | Water | — | — | — | Unknown |
| LARKSPUR OPERATING LLC / RAINIER 1206 1UMH 7 | Air | — | — | — | No Violation Identified |
| LIBERTY ENERGY SERVICES - EL RENO FRAC | Hazardous waste | 1 | — | — | No Violation Identified |
| LOVES TRAVEL STOPS AND COUNTRY STORES I / LOVES TRAVEL STOP 737 | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / NORTH EL RENO 14744121 | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / OKL01426 15171295 | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / SW EL RENO 14733130 | Air | — | — | — | No Violation Identified |
| NEW CINGULAR WIRELESS PCS LLC DBA AT AN / W ELM EL RENO CELL TOWER CLLC10029422 | Air | — | — | — | No Violation Identified |
| O'REILLY AUTO PART STORE 214 | Hazardous waste | — | — | — | No Violation Identified |
| OG AND E - TD AND TS / EL RENO RADIO SITE | Air | — | — | — | No Violation Identified |
| OKC WEST LIVESTOCK MARKET, INC | Water | 1 | 1 | — | Unknown |
| ONEOK FIELD SERVICES CO LLC / CLOVIS COMPRESSOR STATION | Air | — | — | — | No Violation Identified |
| ONEOK FIELD SERVICES CO LLC / SW EL RENO COMPRESSOR STATION | Air | 1 | — | — | No Violation Identified |
| PTL EL RENO BULK PLANT | Hazardous waste | — | — | — | No Violation Identified |
| REUTER & REUTER, INC. | Water | — | — | — | Unknown |
| ROCKWATER ENERGY SOLUTIONS | Hazardous waste | 1 | — | — | No Violation Identified |
| ROCKWATER ENERGY SOLUTIONS | — | — | 1 | — | — |
| S & J TIRE STORE INC | Hazardous waste | — | — | — | No Violation Identified |
| SCHLUMBERGER TECH CORP | Hazardous waste | — | — | — | No Violation Identified |
| SELECT WATER SOLUTIONS | Hazardous waste | — | — | — | No Violation Identified |
| SEVENTY SEVEN LAND CO LLC / EL RENO FACILITY | Air | — | — | — | No Violation Identified |
| SPM OIL AND GAS PC - EL RENO | Hazardous waste | 1 | — | — | No Violation Identified |
| SUN COAST RESOURCES, LLC | Hazardous waste | — | — | — | No Violation Identified |
| TEOCALLI EXPLORATION LLC / SWINGLE TRUST 17 01 | Air | — | — | — | No Violation Identified |
| TETRA TECHNOLOGIES, INC | Hazardous waste | — | — | — | No Violation Identified |
| THOMAS PETROLEUM LLC EL RENO | — | — | — | — | — |
| TMOBILE CENTRAL LLC / EL RENO NORTH OK01336A | Air | — | — | — | No Violation Identified |
| TMOBILE CENTRAL LLC / SOUTH EL RENO | Air | — | — | — | No Violation Identified |
| TOM STACK LLC / ANTHEM COMPRESSOR FACILITY | Air | 1 | — | — | Violation Identified |
| TRACTOR SUPPLY # 432 | Hazardous waste | — | — | — | No Violation Identified |
| UNIVERSAL ENVIRONMENTAL SERVICES EL RENO | Hazardous waste | 1 | — | — | No Violation Identified |
| UNIVERSAL TRAILER | Air, Water | 5 | 1 | — | Violation Identified |
| US DOJ FED BUREAU OF PRISONS - FCI EL R / EL RENO FEDERAL CORRECTIONS INSTITUTE | Air | — | — | — | No Violation Identified |
| USDA ARS OK GRAZINGLAND RESEARCH LAB | Hazardous waste | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / AFFIRMED PAD | Air | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / KASTL 24 25 PAD | Air | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / RADER PAD | Air | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / TECH 24 25 PAD | Air | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / TWISTER PAD | Air | — | — | — | No Violation Identified |
| VALIDUS ENERGY II MIDCON LLC / VICKREY 1H 32 5 | Air | — | — | — | No Violation Identified |
| VERIZON WIRELESS / EL RENO DT | Air | — | — | — | No Violation Identified |
| VERIZON WIRELESS / LUCKY STAR | Air | — | — | — | No Violation Identified |
| WALGREEN'S #12027 | Hazardous waste | — | — | — | No Violation Identified |
| WALMART SUPERCENTER #227 | Air, Hazardous waste | — | — | — | No Violation Identified |
| WEATHERFORD FRACTURING TECHNOLOGIES | Hazardous waste | — | — | — | No Violation Identified |
| WEST EL RENO COMPRESSOR STATION | Air | 1 | — | — | No Violation Identified |
| WESTERN FARMERS ELECTRIC COOPERATIVE / EL RENO SW | Air | — | — | — | No Violation Identified |