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 |
|---|---|---|---|---|
| 2025-03-17 | DCP OPERATING CO LP / SUNDOWN COMPRESSOR STATION | BRADLEY, Grady, OK | Pass | State |
| 2025-03-17 | IRON HORSE MIDSTREAM LLC / SILVER PIGEON COMPRESSOR STATION | NINNEKAH, Grady, OK | Pass | State |
| 2025-03-13 | BCE MACH LLC / HAMMERHEAD BIA 20 15N 10W 5MH PAD | GREENFIELD, Blaine, OK | Pass | State |
| 2025-03-13 | ONEOK FIELD SERVICES CO LLC / ICE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-03-13 | FORMENTERA OPERATIONS / HARDY 25 11 6 1WH BENNETT 24 11 6 1WH | MUSTANG, Canadian, OK | Pass | State |
| 2025-03-13 | ONEOK FIELD SERVICES CO LLC / WILDHORSE LATERAL COMPRESSOR STATION | BUTLER, Custer, OK | Pass | State |
| 2025-03-13 | DCP OPERATING CO LP / VIPER COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-13 | FORMENTERA OPERATIONS / KINGS CANYON PRODUCTION FACILITY | TUTTLE, Grady, OK | Pass | State |
| 2025-03-12 | FORMENTERA OPERATIONS / BOMHOFF 20 12 7 PRODUCTION FACILITY | EL RENO, Canadian, OK | Pass | State |
| 2025-03-12 | FORMENTERA OPERATIONS / PHOENIX PRODUCTION FACILITY | YUKON, Canadian, OK | Pass | State |
| 2025-03-12 | CONTINENTAL RESOURCES / COURBET 8 22 9XHW 9 22 9XHW 15 22 9XHM | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-03-12 | CONTINENTAL RESOURCES / ISLANDS 1 34 35XHW | HENNEPIN, Garvin, OK | Pass | State |
| 2025-03-12 | TOM STACK LLC / REPUBLIC STATION | TUTTLE, Grady, OK | Pass | State |
| 2025-03-11 | MIDPOINT MIDSTREAM LLC / PRENTISS COMPRESSOR STATION | SAYRE, Beckham, OK | Pass | State |
| 2025-03-11 | MIDPOINT MIDSTREAM LLC / PRENTISS COMPRESSOR STATION | SAYRE, Beckham, OK | Pass | State |
| 2025-03-11 | DCP OPERATING CO LP / VIPER COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-11 | DCP OPERATING CO LP / VIPER COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-11 | CONTINENTAL RESOURCES / HAVENS 1 23 26XH | WYNNEWOOD, Garvin, OK | Pass | State |
| 2025-03-11 | MARKWEST OKLAHOMA GAS CO LLC / SCHWARZ COMPRESSOR STATION | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-03-11 | CONTINENTAL RESOURCES / CELESTA 2 5 32XH 3 5 32XH POTEET 12 8 | PURDY, Stephens, OK | Pass | State |
| 2025-03-11 | DCP OPERATING CO LP / STRAIGHT COMPRESSOR STATION | GUYMON, Texas, OK | Pass | State |
| 2025-03-10 | DCP OPERATING CO LP / VIPER COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-07 | BCE MACH II LLC / HAMILTON 2 19H STATION | SWEETWATER, Beckham, OK | Pass | State |
| 2025-03-07 | VALIDUS ENERGY II MIDCON LLC / BIG MUDDIE 1305 1 5MH 1405 1 32 MH | PIEDMONT, Canadian, OK | Pass | State |
| 2025-03-07 | VALIDUS ENERGY II MIDCON LLC / DAUGHETY 10 PAD | CALUMET, Canadian, OK | Pass | State |
| 2025-03-07 | BCE MACH LLC / SANDHILL PAD B | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-03-06 | ONEOK FIELD SERVICES CO LLC / ICE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-03-06 | BCE MACH LLC / MIDNIGHT SUN 123 MHX CROOKED PINE 46 M | EL RENO, Canadian, OK | Pass | State |
| 2025-03-06 | VALIDUS ENERGY II MIDCON LLC / RENBARGER CTB | BRIDGE CREEK, Grady, OK | Pass | State |
| 2025-03-06 | PETROLINK ENERGY LLC / NORTHEAST WILDLIFE COMPRESSOR STATION | KINTA, Haskell, OK | Pass | State |
| 2025-03-06 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-03-06 | TOM STACK LLC / KARBACH COMPRESSOR STATION | OMEGA, Kingfisher, OK | Pass | State |
| 2025-03-06 | PETROLINK ENERGY LLC / BLOCKER COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-03-05 | BCE MACH LLC / ROSEANNADANNA 34 27 12N 6W 2 3MXH PAD | YUKON, Canadian, OK | Pass | State |
| 2025-03-05 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / ROBINSON COMPRESSOR STATION | CANTON, Dewey, OK | Pass | State |
| 2025-03-05 | DCP OPERATING CO LP / FINLEY COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-05 | TOM STACK LLC / REPUBLIC STATION | TUTTLE, Grady, OK | Pass | State |
| 2025-03-05 | BCE MACH LLC / SILVER SPUR 34 27 9N 6W 1 2MHX PAD | TUTTLE, Grady, OK | Pass | State |
| 2025-03-05 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / FISHER COMPRESSOR STATION | CHESTER, Major, OK | Pass | State |
| 2025-03-05 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WALKER COMPRESSOR STATION | MOORELAND, Woodward, OK | Pass | State |
| 2025-03-04 | COLORADO INTERSTATE GAS LLC / KEYES COMPRESSOR STATION | KEYES, Cimarron, OK | Pass | State |
| 2025-03-04 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / HILLSDALE COMPRESSOR STATION | ENID, Garfield, OK | Pass | State |
| 2025-03-04 | DCP OPERATING CO LP / FINLEY COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-04 | DCP OPERATING CO LP / FINLEY COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-04 | TOM STACK LLC / REPUBLIC STATION | TUTTLE, Grady, OK | Pass | State |
| 2025-03-04 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / CLYDE COMPRESSOR STATION | MEDFORD, Grant, OK | Pass | State |
| 2025-03-04 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / MEGAN COMPRESSOR STATION | ALVA, Woods, OK | Pass | State |
| 2025-03-03 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / AMORITA COMPRESSOR STATION | AMORITA, Alfalfa, OK | Pass | State |
| 2025-03-03 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / BYRON COMPRESSOR STATION | BYRON, Alfalfa, OK | Pass | State |
| 2025-03-03 | PALO DURO G AND P OKLAHOMA LP / BIG MAC COMPRESSOR STATION | ELK CITY, Beckham, OK | Pass | State |
| 2025-03-03 | DCP OPERATING CO LP / FINLEY COMPRESSOR STATION | LINDSAY, Garvin, OK | Pass | State |
| 2025-03-03 | TOM STACK LLC / REPUBLIC STATION | TUTTLE, Grady, OK | Pass | State |
| 2025-03-03 | TOM STACK LLC / REPUBLIC STATION | TUTTLE, Grady, OK | Pass | State |
| 2025-03-03 | FW MIDCON I LLC / DAVIS 0805 2HW 3HW 4HW 34X | BLANCHARD, Grady, OK | Pass | State |
| 2025-03-03 | FW MIDCON I LLC / BRANCH 1H 16 | FOSTER, Stephens, OK | Pass | State |
| 2025-03-03 | BCE MACH LLC / LEE MACKEY 33 29 17 1H | FREEDOM, Woods, OK | Pass | State |
| 2025-02-28 | VALIDUS ENERGY II MIDCON LLC / NILGAI PAD | WATONGA, Blaine, OK | Pass | State |
| 2025-02-28 | FORMENTERA OPERATIONS / JETSON PAD | PIEDMONT, Oklahoma, OK | Pass | State |
| 2025-02-28 | FORMENTERA OPERATIONS / EASTON PAD | EDMOND, Oklahoma, OK | Pass | State |
| 2025-02-27 | VALIDUS ENERGY II MIDCON LLC / DAVIS PAD | WATONGA, Blaine, OK | Pass | State |
| 2025-02-27 | DEVON ENERGY PRODUCTION CO LP / PHENIX 27 PAD 1 | WATONGA, Blaine, OK | Pass | State |
| 2025-02-27 | DEVON ENERGY PRODUCTION CO LP / PICKAROON 11 2 PAD 2 | OMEGA, Blaine, OK | Pass | State |
| 2025-02-27 | BCE MACH III LLC / EHU 268 271HO PAD | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-02-27 | VALIDUS ENERGY II MIDCON LLC / SMARTY JONES 1 3 PAD | NEWCASTLE, McClain, OK | Pass | State |
| 2025-02-27 | VALIDUS ENERGY II MIDCON LLC / SMARTY JONES 1 3 PAD | NEWCASTLE, McClain, OK | Pass | State |
| 2025-02-27 | PONDEROSA GATHERING LLC / PONDEROSA COMPRESSOR STATION 2 | QUINTON, Pittsburg, OK | Pass | State |
| 2025-02-27 | DCP OPERATING CO LP / CIMARRON NATURAL GAS PROCESSING PLANT — high-priority violation on file | RICHMOND, Woodward, OK | Pass | State |
| 2025-02-27 | DCP OPERATING CO LP / CIMARRON NATURAL GAS PROCESSING PLANT — high-priority violation on file | RICHMOND, Woodward, OK | Pass | State |
| 2025-02-26 | VALIDUS ENERGY II MIDCON LLC / CARTER 5 9MH 5 16MH | PIEDMONT, Canadian, OK | Pass | State |
| 2025-02-26 | VALIDUS ENERGY II MIDCON LLC / JOANN BENNETT 2 8MH | PIEDMONT, Canadian, OK | Pass | State |
| 2025-02-26 | FOUNDATION ENERGY MANAGEMENT LLC / NORTHRIDGE GAS PLANT | GERTY, Hughes, OK | Pass | State |
| 2025-02-26 | MARKWEST OKLAHOMA GAS CO LLC / DUNN COMPRESSOR STATION | STUART, Hughes, OK | Pass | State |
| 2025-02-26 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-02-26 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-02-26 | MARKWEST OKLAHOMA GAS CO LLC / SHERMAN ELLIS COMPRESSOR STATION | HAYWOOD, Pittsburg, OK | Pass | State |
| 2025-02-25 | VALIDUS ENERGY II MIDCON LLC / LADD 1 8 5XH | WATONGA, Blaine, OK | Pass | State |
| 2025-02-25 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-02-25 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-02-25 | MARKWEST OKLAHOMA GAS CO LLC / KAPPA COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-02-25 | VALIDUS ENERGY II MIDCON LLC / CASHION 1 PAD | CASHION, Kingfisher, OK | Pass | State |
| 2025-02-25 | PETROLINK ENERGY LLC / STROTHER COMPRESSOR STATION | SEMINOLE, Seminole, OK | Pass | State |
| 2025-02-25 | PETROLINK ENERGY LLC / STROTHER COMPRESSOR STATION | SEMINOLE, Seminole, OK | Pass | State |
| 2025-02-25 | ONEOK FIELD SERVICES CO LLC / COTTONWOOD COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-02-24 | VALIDUS ENERGY II MIDCON LLC / BERNHARDT 2 13H | WATONGA, Blaine, OK | Pass | State |
| 2025-02-24 | DEVON ENERGY PRODUCTION CO LP / MALLARD PAD 1 | BUTLER, Custer, OK | Pass | State |
| 2025-02-24 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-02-24 | PETROLINK ENERGY LLC / SOUTH DAVENPORT COMPRESSOR STATION | DAVENPORT, Lincoln, OK | Pass | State |
| 2025-02-24 | ONEOK FIELD SERVICES CO LLC / ANTELOPE HILLS GAS PLANT | CRAWFORD, Roger Mills, OK | Pass | State |
| 2025-02-21 | WYNNEWOOD REFINING CO LLC / WYNNEWOOD REFINERY — high-priority violation on file | WYNNEWOOD, Garvin, OK | Pass | State |
| 2025-02-21 | BCE MACH III LLC / HANNAH ROY TRUST 17 11 20 2H PAD | CANUTE, Washita, OK | Pass | State |
| 2025-02-21 | DIVERSIFIED PRODUCTION LLC / TEAL 2313 1UOH 19 WIGEON 2314 1UOH 24A | CLEO SPRINGS, Woods, OK | Pass | State |
| 2025-02-18 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2025-02-18 | ET GATHERING PROCESSING LLC / FRISCO COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2025-02-18 | CONTINENTAL RESOURCES / TRIPLE RIMER 2 35 26XHW 3 35 26XHM | BLANCHARD, Grady, OK | Pass | State |
| 2025-02-18 | CONTINENTAL RESOURCES / MCBRYDE FIU 3 23 26XHW | DIBBLE, Grady, OK | Pass | State |
| 2025-02-18 | FORMENTERA OPERATIONS / JETSON PAD | PIEDMONT, Oklahoma, OK | Pass | State |
| 2025-02-18 | FORMENTERA OPERATIONS / WINTERFELL PAD | OKLAHOMA CITY, Oklahoma, OK | Pass | State |
| 2025-02-18 | FORMENTERA OPERATIONS / WINTERFELL PAD | OKLAHOMA CITY, Oklahoma, OK | Pass | State |
| 2025-02-18 | ET GATHERING PROCESSING LLC / TRI COUNTY COMPRESSOR STATION | MARLOW, Stephens, OK | Pass | State |
| 2025-02-17 | BCE MACH II LLC / TIPTON 21 11 25 10H TIPTON 28 11 25 1H | SWEETWATER, Beckham, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.