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 |
|---|---|---|---|---|
| 2025-06-10 | ENLINK MIDSTREAM SERVICES LLC / SAPPHIRE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-06-10 | CAMINO NATURAL RESOURCES LLC / UNCOMPAHGRE 10 15 1MH BYERS 0806 10 3 | AMBER, Grady, OK | Pass | State |
| 2025-06-10 | CAMINO NATURAL RESOURCES LLC / BLACK MESA 0505 3 10 1WH GREAT PLAINS | ALEX, Grady, OK | Pass | State |
| 2025-06-10 | CAMINO NATURAL RESOURCES LLC / BLACK MESA 0505 3 10 1WH GREAT PLAINS | ALEX, Grady, OK | Pass | State |
| 2025-06-10 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2025-06-10 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2025-06-10 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / ORIENTA COMPRESSOR STATION | ORIENTA, Major, OK | Pass | State |
| 2025-06-10 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / ORIENTA COMPRESSOR STATION | ORIENTA, Major, OK | Pass | State |
| 2025-06-10 | TALL OAK WOODFORD LLC / SOLERA COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-06-09 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / DRIFTWOOD COMPRESSOR STATION | CHEROKEE, Alfalfa, OK | Pass | State |
| 2025-06-09 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / DRIFTWOOD COMPRESSOR STATION | CHEROKEE, Alfalfa, OK | Pass | State |
| 2025-06-09 | COTERRA ENERGY OPERATING CO / BROOKS 1 20H FACILITY | GEARY, Canadian, OK | Pass | State |
| 2025-06-09 | TALL OAK MIDCON LLC / PENDLETON COMPRESSOR FACILITY | TALOGA, Dewey, OK | Pass | State |
| 2025-06-09 | CAMINO NATURAL RESOURCES LLC / BLACK FOREST 1 20XH | MINCO, Grady, OK | Pass | State |
| 2025-06-09 | CAMINO NATURAL RESOURCES LLC / ACADIAN 0806 11 2 1MH PRODUCTION FACIL | AMBER, Grady, OK | Pass | State |
| 2025-06-09 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2025-06-09 | MARKWEST OKLAHOMA GAS CO LLC / LAMAR COMPRESSOR STATION | LAMAR, Hughes, OK | Pass | State |
| 2025-06-09 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / WAYNOKA NATURAL GAS PROCESSING PLANT | ALVA, Woods, OK | Pass | State |
| 2025-06-09 | TARGA PIPELINE MIDCONTINENT WESTOK LLC / MEGAN COMPRESSOR STATION | ALVA, Woods, OK | Pass | State |
| 2025-06-06 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-06-06 | BCE MACH LLC / SILVER SPUR 34 27 9N 6W 1 2MHX PAD | TUTTLE, Grady, OK | Pass | State |
| 2025-06-05 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-06-05 | THOROUGHBRED GATHERING LLC / CYCLONE COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-06-05 | BCE MACH LLC / VON TUNGELN 1H 20 | EL RENO, Canadian, OK | Pass | State |
| 2025-06-05 | BCE MACH LLC / SMASHBOI 7 18 8 6 2MHX 3MHX PAD | AMBER, Grady, OK | Pass | State |
| 2025-06-05 | MARKWEST OKLAHOMA GAS CO LLC / DOVER COMPRESSOR STATION | DOVER, Kingfisher, OK | Pass | State |
| 2025-06-05 | MARKWEST OKLAHOMA GAS CO LLC / JAMES COMPRESSOR STATION | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-06-04 | MARKWEST OKLAHOMA GAS CO LLC / SPRAGUE COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2025-06-04 | IRON HORSE MIDSTREAM LLC / BUFFALO COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2025-06-04 | BCE MACH LLC / CAMPBELL FARMS 35 2 8N 6W 2WHX 4WHX 5W | AMBER, Grady, OK | Pass | State |
| 2025-06-04 | MARKWEST OKLAHOMA GAS CO LLC / SIGMA COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-06-03 | IRON HORSE MIDSTREAM LLC / BUFFALO COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2025-06-03 | BCE MACH LLC / SMASHBOI 7 18 8 6 2MHX 3MHX PAD | AMBER, Grady, OK | Pass | State |
| 2025-06-03 | MARKWEST OKLAHOMA GAS CO LLC / DOVER COMPRESSOR STATION | DOVER, Kingfisher, OK | Pass | State |
| 2025-06-03 | MARKWEST OKLAHOMA GAS CO LLC / DOVER COMPRESSOR STATION | DOVER, Kingfisher, OK | Pass | State |
| 2025-06-03 | SANGUINE GAS EXPLORATION LLC / DIBBLE 1 4H33X28 | DIBBLE, McClain, OK | Pass | State |
| 2025-06-02 | ONEOK FIELD SERVICES CO LLC / BURNS COMPRESSOR STATION | GEARY, Canadian, OK | Pass | State |
| 2025-06-02 | ONEOK FIELD SERVICES CO LLC / BURNS COMPRESSOR STATION | GEARY, Canadian, OK | Pass | State |
| 2025-06-02 | IRON HORSE MIDSTREAM LLC / BUFFALO COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2025-06-02 | IRON HORSE MIDSTREAM LLC / BUFFALO COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2025-05-30 | BCE MACH LLC / KING JULIEN 15 12 7 1MH 2MH ROSEWOOD 1 | EL RENO, Canadian, OK | Pass | State |
| 2025-05-30 | FW MIDCON I LLC / MERVELDT 1407 2H 3H 24X STINE 1407 2H | OKARCHE, Canadian, OK | Pass | State |
| 2025-05-30 | BCE MACH LLC / SASQUATCH LIVES PAD | MINCO, Grady, OK | Pass | State |
| 2025-05-30 | PETROLINK ENERGY LLC / FEATHERSTON COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-05-29 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-29 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-29 | BCE MACH LLC / MIDNIGHT SUN 123 MHX CROOKED PINE 46 M | EL RENO, Canadian, OK | Pass | State |
| 2025-05-29 | MARKWEST OKLAHOMA GAS CO LLC / WEST RELAY COMPESSOR STATION | HORNTOWN, Hughes, OK | Pass | State |
| 2025-05-29 | PETROLINK ENERGY LLC / FEATHERSTON COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-05-29 | PETROLINK ENERGY LLC / FEATHERSTON COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-05-29 | MARKWEST OKLAHOMA GAS CO LLC / MYER MOUNTAIN COMPRESSOR STATION — high-priority violation on file | SCIPIO, Pittsburg, OK | Pass | State |
| 2025-05-28 | TOM STACK LLC / SPINDLETAP COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-05-28 | ENLINK MIDSTREAM SERVICES LLC / CANA GAS PLANT | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | ENLINK MIDSTREAM SERVICES LLC / CANA GAS PLANT | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | BCE MACH LLC / SAND BOULDER 19 30 12N 8W 2MXH PAD | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | BCE MACH LLC / JENNIFER LAUREN 13 24 12 9 3MHX 5WHX P | EL RENO, Canadian, OK | Pass | State |
| 2025-05-28 | CALYX ENERGY III LLC / KENNEDY PAD | DUSTIN, Hughes, OK | Pass | State |
| 2025-05-28 | CALYX ENERGY III LLC / JASMINE PAD | LAMAR, Hughes, OK | Pass | State |
| 2025-05-28 | PETROLINK ENERGY LLC / FEATHERSTON COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-05-28 | PETROLINK ENERGY LLC / FEATHERSTON COMPRESSOR STATION | BLOCKER, Pittsburg, OK | Pass | State |
| 2025-05-27 | TOM STACK LLC / SPINDLETAP COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-05-27 | TOM STACK LLC / SPINDLETAP COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-05-27 | DCP OPERATING CO LP / COYOTE COMPRESSOR STATION | GEARY, Canadian, OK | Pass | State |
| 2025-05-27 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-27 | IRON HORSE MIDSTREAM LLC / TERRITORY COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-05-27 | ONEOK FIELD SERVICES CO LLC / EAST PUTNAM COMPRESSOR STATION | PUTNAM, Dewey, OK | Pass | State |
| 2025-05-27 | EOG RESOURCES INC / LIVINGSTON CTB | BLANCHARD, Grady, OK | Pass | State |
| 2025-05-27 | CALYX ENERGY III LLC / FORE PAD | VERNON, Pittsburg, OK | Pass | State |
| 2025-05-27 | FW MIDCON I LLC / JARRED 0204 2H 3H 9X | FOSTER, Stephens, OK | Pass | State |
| 2025-05-23 | TOM STACK LLC / ANTHEM COMPRESSOR FACILITY — high-priority violation on file | EL RENO, Canadian, OK | Pass | State |
| 2025-05-23 | TROY ENERGY / HARRIS 3 2 LMH | NINNEKAH, Grady, OK | Pass | State |
| 2025-05-23 | SCHIRALLI CONSTRUCTION CORP / PORTABLE PLANT 1 | WILSON, Carter, OK | Pass | State |
| 2025-05-22 | PEOPLES ELECTRIC COOP / CENTRAHOMA — high-priority violation on file | CENTRAHOMA, Coal, OK | Pass | State |
| 2025-05-22 | ENABLE GAS TRANSMISSION LLC / AMBER JUNCTION COMPRESSOR STATION | AMBER, Grady, OK | Pass | State |
| 2025-05-22 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-22 | CONTINENTAL RESOURCES / THE DUKE 0104 23 14 1MXH | RATLIFF CITY, Stephens, OK | Pass | State |
| 2025-05-21 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-21 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-21 | GRAND RIVER DAM AUTHORITY / GRAND RIVER ENERGY CENTER — high-priority violation on file | CHOUTEAU, Mayes, OK | Pass | State |
| 2025-05-21 | CONTINENTAL RESOURCES / DAUBE 2 22 15 10XHM | VELMA, Stephens, OK | Pass | State |
| 2025-05-21 | CONTINENTAL RESOURCES / BEARDEN 16 17 12 1 36XHS | ELMORE CITY, Stephens, OK | Pass | State |
| 2025-05-20 | MARKWEST OKLAHOMA GAS CO LLC / WOMACK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2025-05-20 | MARKWEST OKLAHOMA GAS CO LLC / WOMACK COMPRESSOR STATION | COALGATE, Coal, OK | Pass | State |
| 2025-05-20 | VM ARKOMA STACK LLC / SPITFIRE COMPRESSOR STATION | CENTRAHOMA, Coal, OK | Pass | State |
| 2025-05-20 | DCP OPERATING CO LP / HOBIT COMPRESSOR STATION — high-priority violation on file | ARNETT, Ellis, OK | Pass | State |
| 2025-05-20 | CONTINENTAL RESOURCES / EARLY 5 29 32XHW RK MORRIS 6 29 20 17X | ALEX, Grady, OK | Pass | State |
| 2025-05-20 | CONTINENTAL RESOURCES / NISWONGER 4 5 6 LOU 1 16H | TABLER, Grady, OK | Pass | State |
| 2025-05-20 | BCE MACH III LLC / EHU 239H 240H 241H | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-05-20 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-20 | MARKWEST OKLAHOMA GAS CO LLC / HELEN MEIER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-20 | GRAND RIVER DAM AUTHORITY / GRAND RIVER ENERGY CENTER — high-priority violation on file | CHOUTEAU, Mayes, OK | Pass | State |
| 2025-05-19 | CONTINENTAL RESOURCES / BIRT 1 13H WILLIAMS 1 24H | CHICKASHA, Grady, OK | Pass | State |
| 2025-05-19 | CONTINENTAL RESOURCES / GREEN ACRES 5 36 25XHW SHAW 3 1 12XHW | DIBBLE, Grady, OK | Pass | State |
| 2025-05-19 | TOM STACK LLC / CHISHOLM PLANT | CASHION, Kingfisher, OK | Pass | State |
| 2025-05-19 | TOM STACK LLC / STONE COMPRESSOR FACILITY | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-05-19 | MUSTANG GAS PRODUCTS LLC / SILVER LAKE GAS PLANT | AMES, Major, OK | Pass | State |
| 2025-05-19 | MARKWEST OKLAHOMA GAS CO LLC / VERNER COMPRESSOR STATION | HAYWOOD, Pittsburg, OK | Pass | State |
| 2025-05-19 | MARKWEST OKLAHOMA GAS CO LLC / VERNER COMPRESSOR STATION | HAYWOOD, Pittsburg, OK | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.