EPA Air · stack tests by state and year
Air-emissions stack tests in Oklahoma, 2025
- 1,229Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Oklahoma during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Oklahoma, 2025
- Kingfisher County 231
- Canadian County 167
- Grady County 132
- Blaine County 67
- Stephens County 62
- Pittsburg County 48
- Woods County 46
- Garfield County 42
- Garvin County 41
- Alfalfa County 41
- Hughes County 37
- Carter County 34
- Coal County 33
- Beckham County 24
- Oklahoma County 23
- Dewey County 23
- Roger Mills County 21
- Custer County 20
- Major County 15
- Woodward County 15
- McClain County 11
- Marshall County 10
- Washita County 10
- McIntosh County 8
- Latimer County 7
- Ellis County 7
- Logan County 7
- Creek County 6
- Bryan County 5
- Lincoln County 4
- Tulsa County 3
- Mayes County 3
- Texas County 3
Oklahoma, other years
Air-emissions stack tests recorded in Oklahoma, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-08-26 | BCE MACH III LLC / LNU 15 6HO 41 3HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-08-26 | BCE MACH III LLC / COPPERPLATE 1605 1 3MH PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-26 | SUPERIOR MIDSTREAM LLC / CASHION NORTH BOOSTER STATION (WASWO) | CASHION, Logan, OK | Pass | State |
| 2025-08-26 | ET GATHERING PROCESSING LLC / ROSE VALLEY PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-26 | ET GATHERING PROCESSING LLC / ROSE VALLEY PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-26 | ET GATHERING PROCESSING LLC / ROSE VALLEY PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-25 | DEVON ENERGY PRODUCTION CO LP / MOOSE 35 PAD 1 | WATONGA, Blaine, OK | Pass | State |
| 2025-08-25 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-25 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-25 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-25 | MLA MIDSTREAM LLC / POD 4 OIL AND GAS PRODUCTION FACILITY | COALGATE, Coal, OK | Pass | State |
| 2025-08-25 | FORMENTERA OPERATIONS / FRANCIS 26 M4H FRANCIS 36 M1H | DOUGLAS, Garfield, OK | Pass | State |
| 2025-08-25 | FORMENTERA OPERATIONS / BRETT PAD | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-08-25 | FORMENTERA OPERATIONS / DONALD 28 33 PAD | MARSHALL, Kingfisher, OK | Pass | State |
| 2025-08-25 | FORMENTERA OPERATIONS / BRETT 2 PAD | MARSHALL, Kingfisher, OK | Pass | State |
| 2025-08-25 | FORMENTERA OPERATIONS / DONALD 32 M1SH PAD | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-08-25 | BCE MACH III LLC / LNU 59 5HO LNU 59 6HO LNU 60 5HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-08-25 | SUPERIOR MIDSTREAM LLC / CASHION NORTH BOOSTER STATION (WASWO) | CASHION, Logan, OK | Pass | State |
| 2025-08-21 | DEVON ENERGY PRODUCTION CO LP / WIGINGTON 17 PAD 1 | GREENFIELD, Blaine, OK | Pass | State |
| 2025-08-21 | DEVON ENERGY PRODUCTION CO LP / WIGINGTON 17 PAD 1 | GREENFIELD, Blaine, OK | Pass | State |
| 2025-08-21 | BCE MACH III LLC / HUMPHREY 2 5H LNU 92 2HO LSEOU 10 2HO | DOVER, Kingfisher, OK | Pass | State |
| 2025-08-21 | BCE MACH LLC / HADA LAND AND CATTLE 3 28 15 1H STA | ALVA, Woods, OK | Pass | State |
| 2025-08-21 | BCE MACH LLC / MACK 10 27 17 1H | FREEDOM, Woods, OK | Pass | State |
| 2025-08-21 | BCE MACH LLC / NIGHSWONGER 7 28 14 1H AND HLN FARMS 7 | ALVA, Woods, OK | Pass | State |
| 2025-08-20 | DEVON ENERGY PRODUCTION CO LP / COWAN 15 10 PAD 2 | WATONGA, Blaine, OK | Pass | State |
| 2025-08-20 | CAMINO NATURAL RESOURCES LLC / HUNT 27 12 7 1H PAD | EL RENO, Canadian, OK | Pass | State |
| 2025-08-20 | CAMINO NATURAL RESOURCES LLC / CHARLES COE 1108 13 1MH | UNION CITY, Canadian, OK | Pass | State |
| 2025-08-20 | CAMINO NATURAL RESOURCES LLC / HMB 2 3 WATCH THIS 3 PRODUCTION FACILI | EL RENO, Canadian, OK | Pass | State |
| 2025-08-20 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-08-20 | ONEOK FIELD SERVICES CO LLC / REDTAIL COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-08-20 | BCE MACH III LLC / KILGORE 1705 1 4MH PAD 3 4MH LNU 91 4H | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-08-20 | BCE MACH LLC / EMERALD 27 28 13 1H STA | CAPRON, Woods, OK | Pass | State |
| 2025-08-20 | BCE MACH LLC / PARIS 12 27 13 1H STA | ALVA, Woods, OK | Pass | State |
| 2025-08-19 | DEVON ENERGY PRODUCTION CO LP / BRADFORD LAKE 23 PAD 1 | WATONGA, Blaine, OK | Pass | State |
| 2025-08-19 | ONEOK GAS TRANSPORTATION LLC / KELLYVILLE COMPRESSOR STATION | KELLYVILLE, Creek, OK | Pass | State |
| 2025-08-19 | ONEOK FIELD SERVICES CO LLC / WEST SMALLWOOD COMPRESSOR STATION | HAMMON, Custer, OK | Pass | State |
| 2025-08-19 | CONTINENTAL RESOURCES / DALWHINNIE 1R 5 4 3XHW PORTMAGEE 1 32 | DAVIS, Garvin, OK | Pass | State |
| 2025-08-19 | CONTINENTAL RESOURCES / DYER 3 4 30 31XHW JACQUEZ 6 19 18XHS | TABLER, Grady, OK | Pass | State |
| 2025-08-19 | MARKWEST OKLAHOMA GAS CO LLC / STUART NORTH COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2025-08-19 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | HOLDENVILLE, Hughes, OK | Pass | State |
| 2025-08-19 | DEVON ENERGY PRODUCTION CO LP / SHOWBOAT PAD 3 | ALPHA, Kingfisher, OK | Pass | State |
| 2025-08-19 | ONEOK FIELD SERVICES CO LLC / WOODS COMPRESSOR STATION | LEEDEY, Roger Mills, OK | Pass | State |
| 2025-08-19 | BCE MACH LLC / BUSH RANCH 2 28 17 1H STATION | FREEDOM, Woods, OK | Pass | State |
| 2025-08-19 | BCE MACH LLC / KATHARINA 6 28 16 STA | ALVA, Woods, OK | Pass | State |
| 2025-08-18 | BCE MACH LLC / STATE 33 26 11 1H STA | LAMBERT, Alfalfa, OK | Pass | State |
| 2025-08-18 | BCE MACH LLC / GENE 3 25 11 STA | CHEROKEE, Alfalfa, OK | Pass | State |
| 2025-08-18 | DEVON ENERGY PRODUCTION CO LP / COLUMBINE 22 PAD 1 | WATONGA, Blaine, OK | Pass | State |
| 2025-08-18 | DEVON ENERGY PRODUCTION CO LP / DICKSON 21 PAD 2 | WATONGA, Blaine, OK | Pass | State |
| 2025-08-18 | DEVON ENERGY PRODUCTION CO LP / RHINO 17 PAD 2 | OKARCHE, Canadian, OK | Pass | State |
| 2025-08-18 | ONEOK FIELD SERVICES CO LLC / MEYERS DURHAM 8 INCH LOOP COMPRSSOR ST | HAMMON, Custer, OK | Pass | State |
| 2025-08-18 | CONTINENTAL RESOURCES / LAMBRECHT 4 17 20XHW LAMBRECHT 5 17 20 | MIDDLEBERG, Grady, OK | Pass | State |
| 2025-08-18 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | HOLDENVILLE, Hughes, OK | Pass | State |
| 2025-08-18 | MARKWEST OKLAHOMA GAS CO LLC / MOSS COMPRESSOR STATION | HOLDENVILLE, Hughes, OK | Pass | State |
| 2025-08-18 | CONTINENTAL RESOURCES / RINGER RANCH 2 20 17XHM RINGER RANCH 3 | VELMA, Stephens, OK | Pass | State |
| 2025-08-15 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WAYNOKA NATURAL GAS PROCESSING PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-14 | BCE MACH III LLC / GORRELL 18 18 6 1HO 2HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-08-14 | BCE MACH III LLC / INGLE 28 18 6 4HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-08-14 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WAYNOKA NATURAL GAS PROCESSING PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-13 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-13 | BCE MACH III LLC / HOSKINS 1705 3 9MH 4 9MH 5 9MH 6 9MH P | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-13 | MARKWEST OKLAHOMA GAS CO LLC / SIGMA COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-13 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-08-13 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WAYNOKA NATURAL GAS PROCESSING PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-12 | TOM STACK LLC / KARBACH COMPRESSOR STATION | OMEGA, Kingfisher, OK | Pass | State |
| 2025-08-12 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-12 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-08-12 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-08-11 | SUPERIOR MIDSTREAM LLC / CARNEY NE COMPRESSOR STATION | CARNEY, Lincoln, OK | Pass | State |
| 2025-08-11 | TALL OAK WOODFORD LLC / PRAIRIE COMPRESSOR FACILITY | WETUMKA, McIntosh, OK | Pass | State |
| 2025-08-11 | TALL OAK WOODFORD LLC / PRAIRIE COMPRESSOR FACILITY | WETUMKA, McIntosh, OK | Pass | State |
| 2025-08-11 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WAYNOKA NATURAL GAS PROCESSING PLANT | ALVA, Woods, OK | Pass | State |
| 2025-08-10 | IRON HORSE MIDSTREAM LLC / EMPIRE COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2025-08-09 | IRON HORSE MIDSTREAM LLC / EMPIRE COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2025-08-09 | IRON HORSE MIDSTREAM LLC / EMPIRE COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2025-08-09 | IRON HORSE MIDSTREAM LLC / EMPIRE COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2025-08-07 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-06 | MARKWEST OKLAHOMA GAS CO LLC / STANGL COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-06 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-08-06 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-06 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-05 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-05 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-04 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-04 | DCP OPERATING CO LP / SHOLEM GAS PLANT | VELMA, Stephens, OK | Pass | State |
| 2025-08-04 | HASKELL LEMON GROUP LLC / ASTEC PLANT | HINTON, Canadian, OK | Pass | State |
| 2025-08-01 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-07-31 | TOM STACK LLC / ANTHEM COMPRESSOR FACILITY — high-priority violation on file | EL RENO, Canadian, OK | Pass | State |
| 2025-07-31 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2025-07-31 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2025-07-31 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2025-07-31 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-07-30 | ENLINK MIDSTREAM SERVICES LLC / RUBY COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-07-30 | ENLINK MIDSTREAM SERVICES LLC / SAPPHIRE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-07-30 | FW MIDCON I LLC / KIERA 1506 2H 3H 34XX | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-07-29 | TOM STACK LLC / COMMUNITY COMPRESSOR STATION | OMEGA, Blaine, OK | Pass | State |
| 2025-07-29 | TOM STACK LLC / KARBACH COMPRESSOR STATION | OMEGA, Kingfisher, OK | Pass | State |
| 2025-07-29 | FW MIDCON I LLC / LUCILE 1708 4H 5H 6H 27X EMORY 1708 2H | LOYAL, Kingfisher, OK | Pass | State |
| 2025-07-28 | TOM STACK LLC / BIG SKY COMPRESSOR STATION | UNION CITY, Canadian, OK | Pass | State |
| 2025-07-28 | FW MIDCON I LLC / JENNIFER 1407 2H 3H 35X | OKARCHE, Canadian, OK | Pass | State |
| 2025-07-28 | ONEOK GAS TRANSPORTATION LLC / SALT CREEK COMPRESSOR STATION | DEPEW, Creek, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.